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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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The vehicle (where a record says)

A record is under an engine, a drive or a series only where it says so: the characters of the vehicle identification number filed with a complaint, its text, or what its document says it applies to. A record that does not say is kept as "not stated". The filed numbers and the documents do not tell 4WD from AWD.

Common on this vehicle:Gauge or instrument faultWarning lightCorrosion or rustNoiseLeakReduced brakingStalls or shuts offLoss of engine power, no acceleration

Record by record

164 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

Symptom

Component named as the cause

Work done

How it is said to have ended

  • says it was fixed2
  • says it held for a while2
  • says it came back2
  • says it did not fix it2
  • result not stated45

A ribbon is as wide as the records that state both of its ends (only the commonest are drawn). A record that names several symptoms or components runs through each. Orange is records that say the fault came back or was not fixed. Results come from owners’ reports only; one that does not say is “result not stated”. None of this is a likelihood of a cause or a rate at which work succeeds.

Read the records one by one (31)

Known issuesBrake pipe (brake line) corrosion and rupture14

  1. Owner complaint2002 GMC YUKON XL ・ 2016-03-14

    Brake line failure recurring two years after previous failure

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Cause
    PERHAPS THEY ARE MAKING THE BRAKE LINES OUT OF THINNER MATERIAL BECAUSE WE HAVE MANY VEHICLES MUCH OLDER, AND NEVER HAD THIS PROBLEM.
    Inspection
    THE GMC DEALER SAID THE CAUSE WAS RUSTED OUT BRAKE LINES.
    Consequence
    TWO YEARS AGO I HAD A SEVER ACCIDENT THAT CAUSE ME TO HIT ANOTHER CAR AND SPIN AROUND.

  2. Owner complaint2003 GMC YUKON XL 2500 ・ 2015-01-26

    Brake failure on downhill road in winter conditions

    1. 1Fault

    2. 2Finding the cause

    3. 3CorrectionNot repaired

      I DID NOT YET HAVE THE BRAKES REPAIRED YET BECAUSE THE QUOTES WERE SO HIGH.

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    THE BRAKES FAILED ON ROUTE 26 COMING DOWN THE HILL TOWARDS ROUTE 28. (3 more)
    Remedy
    I DID NOT YET HAVE THE BRAKES REPAIRED YET BECAUSE THE QUOTES WERE SO HIGH.
    Inspection
    2 - A DIFFERENT REPAIR SHOP SAID THAT ALL FIVE OF MY BRAKE LINES HAD FAILED AND WERE LEAKING FLUID DURING A TEST TO LOCATE THE PROBLEM. (1 more)
    Consequence
    WE SLID SIDEWAYS DOWN THE HILL AND ACROSS ROUTE 28. (2 more)

  3. Owner complaint2005 GMC YUKON DENALI XL ・ 2014-12-27

    Brake pedal goes to floor, brake fluid loss, rusted brake line at left rear

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      I IMMEDIATELY ADDED FLUID.

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    I WAS TRAVELING ON A LOCAL HIGHWAY AT THE POSTED SPEED LIMIT WHEN I WAS CAUSED TO SLOW DUE TO TRAFFIC. (3 more)
    Remedy
    I IMMEDIATELY ADDED FLUID.
    Inspection
    I CHECKED THE BRAKE FLUID AND IT WAS MUCH LOWER THAN WHEN WE STARTED OUR TRIP JUST A FEW HOURS PRIOR. (1 more)
    Consequence
    LUCKILY I DID NOT CAUSE AN ACCIDENT BUT EASILY THERE COULD HAVE BEEN ONE.

  4. Owner complaint2003 GMC YUKON DENALI XL ・ 2014-07-24

    Brake pedal went to floor while driving; brakes failed

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    THE PROBLEM: BRAKES FAILED WHILE VEHICLE WAS RUNNING. (6 more)
    Remedy
    PER THE INVOICE REPAIRS INCLUDED: BRAKE SYSTEM REPAIR/LABOR, BRAKE FLUSH KIT, PIPE KIT AND FLUID.
    Consequence
    THANKFULLY THERE WAS ENOUGH SPACE BETWEEN MY VEHICLE AND THE VEHICLE IN FRONT OF ME SO THAT I DIDN' HIT THEM.

  5. Owner complaint2006 GMC YUKON DENALI XL ・ 2014-07-01

    Brake pedal felt unusual, vehicle would not stop, brake fluid leak from burst brake line

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    WHILE ATTEMPTING TO STOP AT THE END OF MY BLOCK THE BRAKE PEDAL FELT FUNNY. (2 more)
    Remedy
    I NOW HAVE A MECHANIC HAVING TO REPLACE ALL THE BRAKE LINES IN THE CAR SO THAT I DON'T HAVE TO WORRY ABOUT WHAT COULD HAVE HAPPENED WHEN DRIVING MY 1 YEAR OLD AROUND WITH NO BRAKES. *TR
    Inspection
    AFTER I LOOKED AT THEM I NOTICED THEY ARE ALL RUSTED AND IN VERY BAD SHAPE.
    Consequence
    I ENDED UP ROLLING RIGHT INTO THE MIDDLE OF THE INTERSECTION.

  6. Owner complaint2003 GMC YUKON XL 2500 ・ 2011-07-20

    Sudden brake failure with ruptured brake line

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    2003 GMC YUKON XL 2500 SUDDEN BRAKE FAILURE. (3 more)
    Cause
    CLEARLY THERE IS A MANUFACTURING OR QUALITY DEFECT IN THE LINES INSTALLED ON THIS 2003 YUKON.
    Remedy
    BASED ON THE CONSISTENT AND EXCESSIVE CORROSION THROUGHOUT, I OPTED TO HAVE ALL THE BRAKE LINES AND POWER STEERING LINES REPLACED AT ONCE.
    Inspection
    AFTER STOPPING, I EXAMINED THE VEHICLE AND FOUND THE METAL BRAKE LINE HAD RUPTURED WHERE IT CROSSES OVER THE FRAME RAIL LEADING TO THE FRONT LEFT BRAKE. (1 more)

  7. Owner complaint2001 GMC YUKON XL DENALI ・ 2011-06-13

    Brake pedal unresponsive; brake fluid leak from burst line

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    I MADE A LEFT INTO A PARKING LOT AND THE BRAKE PEDAL BECAME UNRESPONSIVE. (2 more)
    Cause
    IT APPEARS THE LINE BURST.
    Inspection
    I REACHED UNDER TO SEE WHERE THE DRIP WAS COMING FROM. (1 more)
    Consequence
    THE VEHICLE ROLLED AND HOPPED THE CURB AND BUMPED INTO A FENCE. (1 more)

  8. Owner complaint2006 GMC YUKON XL ・ 2017-07-31

    Brake lines rusted and leaking; brake pads, rotors, seals and gasket replaced

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Remedy
    HAD TO ALSO REPLACE REAR BRAKE PADS & ROTORS THEY WERE PITTED AND GROOVED. (1 more)

  9. Owner complaint2001 GMC YUKON XL 2500 ・ 2017-02-06

    Brake line failure with complete loss of braking ability

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    VEHICLE WAS IN MOTION TRAVELING AT APPROXIMATELY 20 MPH (= 32.2 km/h) WHEN OPERATOR STEPPED ON BRAKE TO SLOW AND STOP VEHICLE. (1 more)
    Cause
    ACCELERATED RIGID BRAKE LINE CORROSION RESULTED IN BRAKE LINE FAILURE AND COMPLETE LOSS OF VEHICLE STOPPING ABILITY.
    Inspection
    BRAKE LINES ARE INSPECTED REGULARLY AND DID NOT APPEAR RUSTED.

  10. Owner complaint2003 GMC YUKON XL 1500 ・ 2017-01-05

    Corroded brake lines with loss of brakes and ABS sensor issue

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    NOW, THE KNOWN ABS BRAKE SENSOR ISSUE IS ACTIVATING THE ABS AT LOW SPEEDS.
    Remedy
    REPLACED ALL BRAKE LINES AT MY COST AS WELL AS THE DAMAGE TO THE FRONT END OF THE TRUCK.

  11. Owner complaint2004 GMC YUKON XL ・ 2015-10-06

    Brake line leaks from corrosion, brake failure, stability control failure, and instrument cluster gauge malfunction

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    MY 2004 YUKON HAS AT LEAST THREE MAJOR LEAKS IN THE BRAKE LINES CAUSED BY CORROSION. (1 more)
    Consequence
    I WAS IN A NEAR ACCIDENT WHEN MY BRAKES WENT COMPLETELY TO THE FLOOR SUDDENLY.

  12. Owner complaint2004 GMC YUKON XL 1500 ・ 2015-09-17

    Instrument panel went black while driving, ほか

    1. 1Fault

    2. 2Finding the cause

    3. 3CorrectionNot repaired

    Read the sentences of the record
    Fault
    KNOCKING SOUND STARTED ABOUT THE SAME TIME.
    Remedy
    CAN'T AFFORD.
    Inspection
    WAS TOLD BRAKE LINES WERE COMPLETELY RUSTED, AND NEEDED A NEW TRANSMISSION.

  13. Owner complaint2003 GMC YUKON DENALI XL ・ 2015-08-15

    Complete brake failure while driving; corroded brake lines

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Fault
    I WAS DRIVING WITH MY 14MONTH OLD BABY IN THE CAR AND ALL OF A SUDDEN I HAD NO BRAKES AT ALL.
    Cause
    THE BRAKE LINES ARE COMPLETELY CORRODED AND I DIDN'T HAVE ANY NOTICE OR IDEA UNTIL THE BRAKES WERE ALREADY GONE.

  14. Owner complaint2006 GMC YUKON XL 2500 ・ 2015-06-22

    Rusted brake lines on 2006 Denali

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Brake pipe (brake line) corrosion and rupture

      Confirm

      • In the joint inspections, scaling or flaking corrosion was taken as indicating the onset of metal loss and given the second lowest ranking (2); a leaking or previously repaired pipe was the lowest (1).

      Repair

      1. GM recommends replacing the entire set of pipes whenever any pipe leaks or is corroded enough to need replacement.
      2. On June 28, 2013 GM released 66 new part numbers for servicing brake pipes in 1999-2007 GMT800 pickups and utility vehicles.

      Caution

      • Analysis of repair records indicates that consumers often elect to repair only the failed circuit.
    Read the sentences of the record
    Cause
    ITS NOT THE WEATHER THAT'S DOING THIS FOR THE SHEER FACT THAT ITS PRIMARILY GMC THAT HAS THE PROBLEM.
    Inspection
    I WAS SURPRISED AT MY LOCAL MECHANIC'S GARAGE AT INSPECTION TIME WHEN HE SHOWED US THE PARTS THAT NEEDED REPLACED (I HAVE THOSE IN MY POSSESSION BTW).

Known issuesUnwanted ABS activation at low speed (front wheel speed sensor mounting corrosion)4

  1. Recall2000–2002 GMC YUKON XL ・ —

    ABS activation recall in pickup trucks and SUVs

    1. 1Fault

      • Corrosion may occur between the front hub/bearing assembly and the wheel speed sensor; if the brakes are applied at a speed greater than 6 km/h (3.7 mph) but less than 16 km/h (10 mph), the corrosion may cause an unwanted ABS activation.
      • If this occurred where stopping distance is limited, a crash could occur.
      • The condition does not set any ABS codes and does not illuminate the ABS warning lamp.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. Check the mounting surface on the sensor head for flatness against a metal machinist's scale or other straight edge, in multiple positions/directions (minimum 3).
      2. With the bearing rotated at about one revolution per second, the reading should be at least 350 ACmV; if it is less than 350 ACmV the wheel speed sensor must be replaced.

    3. 3Correction

      Repair

      1. If the mounting surface on the sensor is warped or bent, the sensor must be replaced.
      2. Thoroughly clean the wheel speed sensor mounting surface on the bearing hub with a wire brush, sandpaper, emery cloth, scotch brite or equivalent to remove any rust or corrosion.
      3. Spray two thin coats of the specified rust penetrating lubricant (corrosion inhibitor) on the complete sensor mounting surface on the bearing hub, letting it dry between coats.
      4. When the corrosion inhibitor is dry to the touch (about 10 minutes), apply a light coating of the specified grease to the complete sensor mounting surface on the bearing hub and to the sensor and O-ring.
      5. Tighten the wheel speed sensor mounting bolt to 18 N·m (13 lb ft).
      1 more points

      Parts

      • Parts listed: 89022217 Lubricant, Rust Penetrating, and 01051344 Lubricant, Wheel Bearing.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      Caution

      • Remove the sensor by pulling it straight out of the bore; do not pry it with a screwdriver or other device, because prying will break the sensor body off in the bore.
      • This revision changes some breakpoints and adds vehicles that have moved into the severe corrosion areas; copies of bulletin 05068B, issued April 2006, are to be discarded.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to certain 1999-2002 Chevrolet Silverado and GMC Sierra, 2000-2002 Chevrolet Tahoe, Suburban and GMC Yukon, Yukon XL, and 2002 Chevrolet Avalanche that have at any time been registered in the listed areas.
    • Applies to：The revised defect notice adds Delaware, Iowa, Maryland, Minnesota, Missouri, Wisconsin and the District of Columbia to the original states of Connecticut, Illinois, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont and West Virginia.
    • Condition：Corrosion may occur between the front hub/bearing assembly and the wheel speed sensor; if the brakes are applied at a speed greater than 6 km/h (3.7 mph) but less than 16 km/h (10 mph), the corrosion may cause an unwanted ABS activation.
    • Condition：If this occurred where stopping distance is limited, a crash could occur.
    • Condition：The condition does not set any ABS codes and does not illuminate the ABS warning lamp.
    • Caution：Remove the sensor by pulling it straight out of the bore; do not pry it with a screwdriver or other device, because prying will break the sensor body off in the bore.
    • Confirm：Check the mounting surface on the sensor head for flatness against a metal machinist's scale or other straight edge, in multiple positions/directions (minimum 3).
    • Repair：If the mounting surface on the sensor is warped or bent, the sensor must be replaced.
    • Repair：Thoroughly clean the wheel speed sensor mounting surface on the bearing hub with a wire brush, sandpaper, emery cloth, scotch brite or equivalent to remove any rust or corrosion.
    • Repair：Spray two thin coats of the specified rust penetrating lubricant (corrosion inhibitor) on the complete sensor mounting surface on the bearing hub, letting it dry between coats.
    • Repair：When the corrosion inhibitor is dry to the touch (about 10 minutes), apply a light coating of the specified grease to the complete sensor mounting surface on the bearing hub and to the sensor and O-ring.
    • Repair：Tighten the wheel speed sensor mounting bolt to 18 N·m (13 lb ft).
    • Confirm：With the bearing rotated at about one revolution per second, the reading should be at least 350 ACmV; if it is less than 350 ACmV the wheel speed sensor must be replaced.
    • Repair：Tighten the brake caliper mounting bracket bolts to 175 N·m (129 lb ft) on 1500 Series vehicles and 300 N·m (221 lb ft) on 2500 Series vehicles.
    • Parts：Parts listed: 89022217 Lubricant, Rust Penetrating, and 01051344 Lubricant, Wheel Bearing.
    • Caution：This revision changes some breakpoints and adds vehicles that have moved into the severe corrosion areas; copies of bulletin 05068B, issued April 2006, are to be discarded.
    Cause
    CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES MAY EXPERIENCE UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. THIS CONDITION IS MORE LIKELY TO OCCUR IN ENVIRONMENTALLY CORROSIVE AREAS. THIS RECALL WILL BE LAUNCHED IN THE "SALT BELT" STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MARYLAND, MASSACHUSETTS, MAINE, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN AND THE DISTRICT OF COLUMBIA ONLY.
    Remedy
    DEALERS ARE TO REMOVE THE WHEEL SPEED SENSOR AND THOROUGHLY CLEAN THE WHEEL SPEED SENSOR MOUNTING SURFACE ON THE BEARING, APPLY RUST INHIBITOR TO THE CLEANED SURFACE, GREASE THE MOUNTING SURFACE, REINSTALL THE WHEEL SPEED SENSOR, AND CHECK THE PEAK-TO-PEAK OUTPUT VOLTAGE TO ENSURE THE WHEEL SPEED SIGNAL IS WITHIN SPECIFICATIONS. THE RECALL BEGAN SEPTEMBER 22, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 OR GMC AT 1-866-996-9463.
    Consequence
    THIS CAN CAUSE INCREASED STOPPING DISTANCES DURING LOW-SPEED BRAKE APPLICATIONS, WHICH COULD RESULT IN A CRASH.

  2. Owner complaint2002 GMC YUKON XL 1500 ・ 2017-01-11

    Antilock brakes engage when braking regardless of need

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    WHEN BRAKING, THE ANTILOCK BRAKES KICK IN NO MATTER IF NEEDED OR NOT.
    Remedy
    THE SENSOR WAS NOT REPLACED, JUST CLEANED AND PUT BACK IN.
    Consequence
    WE HAVE HAD SEVERAL CLOSE CALLS ON BOTH CITY STREETS & HIGHWAYS.

  3. Owner complaint2000 GMC YUKON XL ・ 2005-05-06

    Slow-speed ABS activation causing inability to stop properly

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      WE THEN TOOK IT TO A LOCAL GMC DEALERSHIP, WHO REPAIRED IT BY DISASSEMBLY, CLEANING AND REASSEMBLY, AT OUR EXPENSE, SINCE THE WARRANTY PERIOD HAD LAPSED.

      What the documents say to do

      Unwanted ABS activation at low speed (front wheel speed sensor mounting corrosion)

      Confirm

      • The reading should be at least 350 mV AC; if it is less, the wheel speed sensor must be replaced.

      Repair

      1. Dealers remove the sensor, clean its mounting surface on the bearing, apply rust inhibitor and grease, reinstall it and check peak-to-peak output voltage.
      2. The passage heading states that the repair is cleaning the wheel speed sensor mounting surface.

      Caution

      • Do not pry the sensor out of the bore; prying breaks the sensor body off in the bore.
    Read the sentences of the record
    Fault
    WHEN THE VEHICLE WAS ABOUT 2 1/2 YEARS OLD, IT DEVELOPED THE SLOW-SPEED ABS ACTIVATION PROBLEM DESCRIBED IN YOUR ABOVE-DESCRIBED ACTION, RESULTING IN OCCASIONAL INABILITY TO STOP PROPERLY AT STOP SIGNS AND PARKING SPACES.
    Remedy
    WE THEN TOOK IT TO A LOCAL GMC DEALERSHIP, WHO REPAIRED IT BY DISASSEMBLY, CLEANING AND REASSEMBLY, AT OUR EXPENSE, SINCE THE WARRANTY PERIOD HAD LAPSED.
    Consequence
    THE FREQUENCY OF INCIDENT INCREASED, UNTIL IN EARLY 2004, WE HAD AN INCIDENT WHERE WE BUMPED ANOTHER VEHICLE, ALTHOUGH WITH NO DAMAGE OR INJURIES.

  4. Owner complaint2002 GMC YUKON XL ・ 2017-08-09

    Vehicle jumps and hesitates when brake pedal depressed

    1. 1Fault

    2. 2Finding the cause

    3. 3CorrectionNot repaired

      THE VEHICLE WAS NOT REPAIRED.

      What the documents say to do

      Unwanted ABS activation at low speed (front wheel speed sensor mounting corrosion)

      Confirm

      • The reading should be at least 350 mV AC; if it is less, the wheel speed sensor must be replaced.

      Repair

      1. Dealers remove the sensor, clean its mounting surface on the bearing, apply rust inhibitor and grease, reinstall it and check peak-to-peak output voltage.
      2. The passage heading states that the repair is cleaning the wheel speed sensor mounting surface.

      Caution

      • Do not pry the sensor out of the bore; prying breaks the sensor body off in the bore.
    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT WHILE THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE JUMPED AND HESITATED WITHOUT WARNING.
    Remedy
    THE VEHICLE WAS NOT REPAIRED.
    Inspection
    THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE WHEEL SPEED SENSOR WAS CORRODED AND NEEDED TO BE REPLACED.

Known issuesHVAC blower motor resistor module / connector overheating1

  1. Recall2003–2006 GMC YUKON XL ・ 2011-02-21

    HVAC Blower Motor Resistor Module Overheating

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      HVAC blower motor resistor module / connector overheating

      Repair

      1. Dealers install a new blower motor resistor and resistor module connector.
      2. Cut the wires back far enough to remove any melted insulation.

      Caution

      • The connector must be replaced even if it was replaced in an earlier repair.
    Read the sentences of the record
    Cause
    On certain vehicles, the interface between the electrical terminals of the Heating, Ventilation, and Air Conditioning (HVAC) blower relay resistor module and the wiring connector (which powers the module) may be incapable of conducting higher current levels for sustained periods of operation. In addition, moisture and other contaminants (such as road de-icing materials) may enter the fresh air intake plenum and contact the internal circuit of the module or corrode the terminals. These conditions may cause the relay resistor module or wiring connector to overheat, causing various symptoms such as: the HVAC blower may not function on certain or all blower speed settings; a burning-plastic smell or smoke may be present in the vehicle, or; the HVAC blower may run continually with the ignition in the OFF position. These warning signs could, in certain instances, be leading indicators of an impending vehicle fire, which could result in property damage and/or personal injury. Correction: Owners will be provided with additional warranty coverage for the blower motor resistor module/wiring connector overheating condition. Under this "special warranty coverage", should this condition occur within 10 years or 240,000 km from first vehicle registration, dealers will install a replacement blower motor resistor and resistor module connector.

EQUIPMENT4

  1. Manufacturer communication2000–2006 GMC YUKON XL DENALI ・ 2021-04-26

    Aluminum Wheel Refinishing Service Bulletin

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility — Outside Company later in this bulletin.

    Read the sentences of the record
    Remedy
    Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility — Outside Company later in this bulletin.

  2. Manufacturer communication2000–2006 GMC YUKON XL DENALI ・ 2021-04-26

    Aluminum Wheel Refinishing Guidelines

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility — Outside Company later in this bulletin.

    Read the sentences of the record
    Remedy
    Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility — Outside Company later in this bulletin.

  3. Manufacturer communication2005–2006 GMC YUKON XL ・ 2019-12-16(1 earlier editions of this document folded here)

    Aluminum wheel bead seat cleaning and resurfacing procedure

    1. 1Fault

      • A tire slowly loses air pressure over a period of days or weeks.

    2. 2Finding the cause

      Possible causes

      • Abrasive elements may intrude between the tire and wheel at the bead seat, and the relative motion between tire and wheel lets the particles wear the wheel and tire materials.

      Steps to confirm (in the document’s order)

      1. The corrosion may be on the inboard or outboard bead seating surface and is not visible until the tire is dismounted from the wheel.
      2. After a water dunk tank leak test, if the source of the leak is around the bead seat of the wheel, dismount the tire to examine the bead seat.
      3. Bead seat corrosion looks like blistering of the wheel finish, giving a rough or uneven surface on which the tire has difficulty keeping a proper seal.
      4. For vehicles with 32,186 km (20,000 mi) or less, the total combined linear area of repairable corrosion is 100 mm (4 in) or less; beyond that the wheel should be replaced.
      5. For vehicles that have exceeded 32,186 km (20,000 mi), the total combined linear area of repairable corrosion is 200 mm (8 in) or less.

    3. 3Correction

      Repair

      1. Use a clean-up (fine cut) sanding disc or biscuit to remove the corrosion and any flaking paint, back to material that is stable and firmly bonded to the wheel.
      2. Once the corrosion is eliminated, coat the repaired area with a commercially available tire sealant such as Patch Brand Bead Sealant or equivalent.

      Parts

      • Part number 16118, Patch Bead Sealer (1 Quart (= 0.946 L)).

      Caution

      • Do not replace a wheel for slow air loss unless the wheel has been evaluated and/or repair has been tried with this procedure.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2005-2020 GM passenger cars and light duty trucks.
    • Condition：A tire slowly loses air pressure over a period of days or weeks.
    • Cause：Abrasive elements may intrude between the tire and wheel at the bead seat, and the relative motion between tire and wheel lets the particles wear the wheel and tire materials.
    • Confirm：The corrosion may be on the inboard or outboard bead seating surface and is not visible until the tire is dismounted from the wheel.
    • Caution：Do not replace a wheel for slow air loss unless the wheel has been evaluated and/or repair has been tried with this procedure.
    • Confirm：After a water dunk tank leak test, if the source of the leak is around the bead seat of the wheel, dismount the tire to examine the bead seat.
    • Confirm：Bead seat corrosion looks like blistering of the wheel finish, giving a rough or uneven surface on which the tire has difficulty keeping a proper seal.
    • Confirm：For vehicles with 32,186 km (20,000 mi) or less, the total combined linear area of repairable corrosion is 100 mm (4 in) or less; beyond that the wheel should be replaced.
    • Confirm：For vehicles that have exceeded 32,186 km (20,000 mi), the total combined linear area of repairable corrosion is 200 mm (8 in) or less.
    • Repair：Use a clean-up (fine cut) sanding disc or biscuit to remove the corrosion and any flaking paint, back to material that is stable and firmly bonded to the wheel.
    • Repair：Once the corrosion is eliminated, coat the repaired area with a commercially available tire sealant such as Patch Brand Bead Sealant or equivalent.
    • Parts：Part number 16118, Patch Bead Sealer (1 Quart (= 0.946 L)).

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.

  4. Manufacturer communication2003–2006 GMC YUKON XL ・ 2018-06-04

    Informational Bulletin Revision for 2010-2013 Model Years

    1. 1Fault

      • For hem flange corrosion, Kent Moore tool J-46162 makes it easier to open the hem flange.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      1. Fit the tool from kit J-46162 into an air impact gun and open the hem flange starting at one end.
      2. Clean out the corrosion by sand blasting or with a 3M Strip Disc, P/N 07460.
      3. Apply anticorrosion primer to the hem flange, then a bead of LORD FUSOR adhesive, P/N 108B or 109B.
      4. Close the hem flange with the tool in the kit and clean off the excess adhesive from the repair area.
      5. Finally prime and refinish the area as required.

      Caution

      • If perforation is present, replace the affected panel.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：2013 and prior GM passenger cars and trucks.
    • Condition：For hem flange corrosion, Kent Moore tool J-46162 makes it easier to open the hem flange.
    • Repair：Fit the tool from kit J-46162 into an air impact gun and open the hem flange starting at one end.
    • Repair：Clean out the corrosion by sand blasting or with a 3M Strip Disc, P/N 07460.
    • Caution：If perforation is present, replace the affected panel.
    • Repair：Apply anticorrosion primer to the hem flange, then a bead of LORD FUSOR adhesive, P/N 108B or 109B.
    • Repair：Close the hem flange with the tool in the kit and clean off the excess adhesive from the repair area.
    • Repair：Finally prime and refinish the area as required.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This informational bulletin provides a revision for 02-08-98-002C to add the 2010-2013 model years and revise the Approved Refinish Materials booklet information.

EQUIPMENT ADAPTIVE/MOBILITY2

  1. Manufacturer communication2000–2006 GMC YUKON XL DENALI ・ 2021-04-26

    Underbody Component Corrosion Guidance

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.

    Read the sentences of the record
    Remedy
    Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.

  2. Manufacturer communication2000–2006 GMC YUKON XL DENALI ・ 2021-04-26

    Underbody Component Corrosion Information

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.

    Read the sentences of the record
    Remedy
    Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.

ELECTRICAL SYSTEM1

  1. Manufacturer communication2002–2006 GMC YUKON XL ・ 2019-07-29(2 earlier editions of this document folded here)

    Electrical Ground Repair with Conductive Fasteners

    1. 1Fault

      • Loose, stripped or corroded ground connections increase the possibility of improper system function and loss of module communication, and may lead to unnecessary repairs and component replacement.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      1. M6 weld stud: select a location next to the damaged or missing M6 ground stud with 20 mm (0.79 in) clearance behind the panel and 20 mm (0.79 in) clearance around the M6 conductive rivet stud flange.
      2. Drill a 10 mm (0.40 in) diameter hole through the panel.
      3. Remove paint and primer from the area around the 10 mm (0.40 in) hole until bare metal is visible.
      4. With a small brush apply Dielectric Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet stud.
      5. Install the M6 conductive nut on the rivet stud and tighten to 71 lb in (= 8.02 N·m).

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      3 more points

      Parts

      • Approved fasteners: 11561645 M6 nut, 11570340 M6 rivet stud, 11588564 M8 bolt, 11609412 M8 nut, 11609538 M7 bolt (self-threading), 11609669 M6 bolt.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      Caution

      • Use only the GM-approved replacement fasteners with conductive finish for electrical ground repair.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2020 and prior GM passenger cars and trucks, including Medium Duty and Heavy Duty.
    • Condition：Loose, stripped or corroded ground connections increase the possibility of improper system function and loss of module communication, and may lead to unnecessary repairs and component replacement.
    • Caution：Use only the GM-approved replacement fasteners with conductive finish for electrical ground repair.
    • Repair：M6 weld stud: select a location next to the damaged or missing M6 ground stud with 20 mm (0.79 in) clearance behind the panel and 20 mm (0.79 in) clearance around the M6 conductive rivet stud flange.
    • Repair：Drill a 10 mm (0.40 in) diameter hole through the panel.
    • Repair：Remove paint and primer from the area around the 10 mm (0.40 in) hole until bare metal is visible.
    • Repair：With a small brush apply Dielectric Lubricant GM P/N 12377900 (Canadian P/N 10953529) to the threads of the M6 conductive rivet stud.
    • Repair：Install the M6 conductive nut on the rivet stud and tighten to 71 lb in (= 8.02 N·m).
    • Repair：If the M6 weld nut at the ground location is damaged or stripped, a M7 conductive self-threading bolt may be used to secure the ground wire terminal.
    • Repair：Install the M7 conductive self-threading bolt and tighten to 80 lb in (= 9.04 N·m).
    • Repair：Install the M8 conductive nut on the bolt and tighten to 16 lb ft (= 21.7 N·m).
    • Parts：Approved fasteners: 11561645 M6 nut, 11570340 M6 rivet stud, 11588564 M8 bolt, 11609412 M8 nut, 11609538 M7 bolt (self-threading), 11609669 M6 bolt.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

ELECTRONIC STABILITY CONTROL (ESC)1

  1. Owner complaint2006 GMC YUKON DENALI XL ・ 2010-01-11

    Traction Active message and power loss when accelerating from stop below 10 MPH

    1. 1Fault

    2. 2Finding the cause

      THESE VEHICLES MAY HAVE A CONDITION PERMITTING CORROSION TO OCCUR BETWEEN THE FRONT HUB/BEARING ASSEMBLY AND THE WHEEL SPEED SENSOR.

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    INTERMITTENTLY, WHEN MY 2006 GMC YUKON DENALI XL IS AT A STOP LIGHT OR SIGN AND I AM DRIVING LESS THAN 10MPH (= 16.1 km/h) AND I GO TO ACCELERATE (NOT SPINNING THE TIRES AND NOT ON WET OR SLIPPERY SURFACES) THE "TRACTION ACTIVE" MESSAGE DISPLAYS AND I LOSE ALL POWER FOR A COUPLE OF SECONDS.
    Cause
    THESE VEHICLES MAY HAVE A CONDITION PERMITTING CORROSION TO OCCUR BETWEEN THE FRONT HUB/BEARING ASSEMBLY AND THE WHEEL SPEED SENSOR.
    Inspection
    I PRINTED OFF 9 PAGES AND TOOK TO MY DEALER/SERVICE DEPARTMENT (SIMMONS ROCKWELL IN BATH, NY) AND AFTER LOOKING AT THE VEHICLE, THEY SAID THERE WAS NOTHING WRONG WITH IT.
    Consequence
    THIS MANY TIMES HAS LEFT ME IN THE MIDDLE OF AN INTERSECTION WITH ON-COMING TRAFFIC.

SERVICE BRAKES1

  1. Owner complaint2004 GMC YUKON DENALI XL ・ 2015-05-21

    Brake pedal sank and brakes lost while driving on highway

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    WHILE OPERATING THE VEHICLE ON A HIGHWAY I PRESSED THE BRAKE PEDAL AND SUDDENLY THE BRAKE PEDAL SUNK AND I LOST BRAKES.
    Inspection
    AFTER FURTHER INSPECTION I OBSERVE THE FRONT DRIVERS SIDE BRAKE WAS CORRODED CAUSING IT TO BREAK.
    Consequence
    I NEARLY LOST CONTROL OF THE VEHICLE AND ALMOST DROVE INTO A GUARD RAIL.

SERVICE BRAKES, AIR1

  1. Owner complaint2005 GMC YUKON XL ・ 2005-06-26

    Anti-lock brakes engage at low speeds, causing longer stopping distance

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      I HAVE SINCE REMOVED THE ABS FUSE AFTER READING THE DETROIT NEWS ABOUT SIMILAR PROBLEMS IN CANADA AND A NATIONAL RECALL TO SOLVE THE PROBLEM.

    Read the sentences of the record
    Fault
    AT LOW SPEEDS 3-5 MPH (= 4.83–8.05 km/h) THE ANTI-LOCK BRAKES ENGAGE - WHICH CAUSE THE VEHICLE TO TRAVEL LONGER DISTANCES TO STOP.
    Remedy
    I HAVE SINCE REMOVED THE ABS FUSE AFTER READING THE DETROIT NEWS ABOUT SIMILAR PROBLEMS IN CANADA AND A NATIONAL RECALL TO SOLVE THE PROBLEM.
    Consequence
    THIS HAS CAUSED SEVERAL NEAR MISSES.

STRUCTURE1

  1. Owner complaint2001 GMC YUKON XL 1500 ・ 2009-06-02

    Roof leaks when raining

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT THE ROOF OF THE VEHICLE LEAKS WHENEVER IT RAINS.
    Cause
    THE ROOF IS LEAKING FROM THE FACTORY MADE ROOF RACK BECAUSE IT IS CORRODED AND CREATED A HOLE.
    Consequence
    AS A RESULT, HIS FAMILY BECOMES ILL WHEN THE FAILURE OCCURS.

WHEELS1

  1. Manufacturer communication2005–2006 GMC YUKON XL ・ 2018-06-04(2 earlier editions of this document folded here)

    Chromed Aluminum Wheels—Chemical Staining and Corrosion

    1. 1Fault

    2. 2Finding the cause

      Possible causes

      • Chemical staining mostly results from acid based cleaners; the stains are frequently milky, black or greenish.
      • A second type of staining comes from road chemicals such as calcium chloride used for dust control on unpaved roads; it looks like small pitting.
      • A third type comes from prolonged exposure to brake dust, which penetrates the chrome.

    3. 3Correction

      Repair

      1. After cleaning, wax the wheel with ACDelco Cleaner Wax, P/N 88865218 (in Canada, 2675208), to protect it from brake dust.
      2. For milky stains from acidic cleaners, apply 3M Chrome and Metal Polish #39527 with a clean terry cloth towel; the staining diminishes as it is applied.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      Caution

      • Do not use cleaning solutions containing hydrofluoric, oxalic and most other acids on chrome wheels (or any wheels).
      • Any wheel cleaner must be thoroughly rinsed off the wheel with clean, clear water.
      • The wheels must be cleaned before the polish is applied, to avoid scratching the wheel surface.
      • The polish reduces the thickness of the chrome plating and, used incorrectly or excessively, may remove it altogether.
      • On wheels spotted by road chemicals the procedure may improve the condition marginally but will not restore the finish or remove the pitting.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：2015 and prior GM passenger cars and trucks.
    • Cause：Chemical staining mostly results from acid based cleaners; the stains are frequently milky, black or greenish.
    • Caution：Do not use cleaning solutions containing hydrofluoric, oxalic and most other acids on chrome wheels (or any wheels).
    • Caution：Any wheel cleaner must be thoroughly rinsed off the wheel with clean, clear water.
    • Cause：A second type of staining comes from road chemicals such as calcium chloride used for dust control on unpaved roads; it looks like small pitting.
    • Cause：A third type comes from prolonged exposure to brake dust, which penetrates the chrome.
    • Repair：After cleaning, wax the wheel with ACDelco Cleaner Wax, P/N 88865218 (in Canada, 2675208), to protect it from brake dust.
    • Repair：For milky stains from acidic cleaners, apply 3M Chrome and Metal Polish #39527 with a clean terry cloth towel; the staining diminishes as it is applied.
    • Caution：The wheels must be cleaned before the polish is applied, to avoid scratching the wheel surface.
    • Caution：The polish reduces the thickness of the chrome plating and, used incorrectly or excessively, may remove it altogether.
    • Caution：On wheels spotted by road chemicals the procedure may improve the condition marginally but will not restore the finish or remove the pitting.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This informational bulletin provides information on chemical staining, pitting, corrosion and/or spotted appearance of chromed aluminum wheels, along with warranty information regarding these conditions.

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