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GMC Yukon 2000–2006

GMC YukonModel 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:Vibration or shudderTyre failure (blowout, tread separation)NoiseWarning lightCorrosion or rustLeakAir conditioning or heaterABS activates (at low speed and the like)

Record by record

34 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 came back3
  • says it did not fix it1
  • result not stated8

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 (17)

Known issuesTire recall (not the vehicle as built): Firestone Wilderness LE tread separation - recall 01T-0011

  1. Recall2000 GMC YUKON ・ 2001-02-01

    Tire Tread Separation on Wilderness LE Tires

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Cause
    TIRE DESCRIPTION: WILDERNESS LE TIRES (BOTH BLACK AND RAISED WHITE LETTER TIRES) PRODUCED DURING THE WEEK OF APRIL 24, 2000 (THE SEVENTEENTH WEEK OF 2000) AT THE CUERNAVACA, MEXICO PLANT WITH TIRE SERIAL NUMBERS V672WL11700 (BLACKWALL) AND V672WL21700 (RAISED WHITE LETTERS). THESE TIRES WERE USED AS ORIGINAL EQUIPMENT ON MODEL YEAR 2000 YUKON XL 1500 SERIES VEHICLES AND WERE ALSO OFFERED AS OPTIONAL EQUIPMENT ON THE 2000 CHEVROLET SUBURBAN 1500 SERIES VEHICLES. TREAD SEPARATION CAN OCCUR DUE TO A LACK OF ADHESION TO THE FIRST STEEL BELT.
    Remedy
    ON JANUARY 2, 2001, FIRESTONE MADE A PUBLIC ANNOUNCEMENT OF THE DEFECT AND THAT REPLACEMENT TIRES ARE IMMEDIATELY AVAILABLE AT NO COST TO THE CUSTOMER. REPLACEMENT TIRES ARE AVAILABLE AT EITHER THEIR LOCAL GM OR CHEVROLET DEALER OR BY THEIR LOCAL AUTHORIZED PARTICIPATING FIRESTONE RETAILER. OWNER NOTIFICATION BEGAN JANUARY 1, 2001. OWNERS SHOULD CONTACT FIRESTONE AT 1-800-465-1904.
    Consequence
    TREAD BELT SEPARATION MAY BE NOTICED BY IRREGULAR WEAR, NOISE, OR VIBRATION. WITH CONTINUED USE, IT MAY LEAD TO COMPLETE SEPARATION OF THE TREAD/BELT PACKAGE FROM THE TIRE CARCASS, POSSIBLY RESULTING IN A VEHICLE CRASH, PERSONAL INJURY, OR DEATH.

TIRES4

  1. Manufacturer communication2006 GMC YUKON DENALI ・ 2023-12-04(4 earlier editions of this document folded here)

    Proper Wheel Installation and Wheel Torque Techniques

    1. 1Fault

      • Vibration is felt in the steering wheel or the seat, centered at a frequency of 10-14 Hz, between 93-115 km/h (58-72 mph).

    2. 2Finding the cause

      Possible causes

      • Inappropriate wheel torque methods may leave the wheel and tire assembly offset when mounted, so that its mass orbits the axis of the hub and vibrates like a tire with high RFV or an imbalance.
      • Improper torque may distort the brake rotor and cause variance in wheel mounting that can produce smooth road shake.

    3. 3Correction

      Repair

      1. Remove the tire and wheel assemblies, index them at least two stud positions from the previous position, and re-install them.
      2. With the wheel off the ground, install all lug nuts hand tight using only a socket.
      3. Snug all lug nuts in a star or criss-cross pattern with a hand wrench.
      4. Lower the vehicle until there is just enough contact to provide resistance, then complete torquing to specification with a torque wrench.

      Caution

      • First order tire/wheel vibration may be misdiagnosed as tire/wheel assembly imbalance or excessive tire radial force variation.
      • Do not use torque sticks or an impact driver to tighten wheel lug nuts.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2006-2015 GM passenger cars and light duty trucks.
    • Condition：Vibration is felt in the steering wheel or the seat, centered at a frequency of 10-14 Hz, between 93-115 km/h (58-72 mph).
    • Caution：First order tire/wheel vibration may be misdiagnosed as tire/wheel assembly imbalance or excessive tire radial force variation.
    • Cause：Inappropriate wheel torque methods may leave the wheel and tire assembly offset when mounted, so that its mass orbits the axis of the hub and vibrates like a tire with high RFV or an imbalance.
    • Cause：Improper torque may distort the brake rotor and cause variance in wheel mounting that can produce smooth road shake.
    • Repair：Remove the tire and wheel assemblies, index them at least two stud positions from the previous position, and re-install them.
    • Caution：Do not use torque sticks or an impact driver to tighten wheel lug nuts.
    • Repair：With the wheel off the ground, install all lug nuts hand tight using only a socket.
    • Repair：Snug all lug nuts in a star or criss-cross pattern with a hand wrench.
    • Repair：Lower the vehicle until there is just enough contact to provide resistance, then complete torquing to specification with a torque wrench.

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

    Remedy
    Proper Wheel Installation and Wheel Torque Techniques

  2. Manufacturer communication2006 GMC YUKON DENALI ・ 2022-01-03(1 earlier editions of this document folded here)

    GM Original Equipment Tires: Vibration and Other Issues

    1. 1Fault

      • Under certain circumstances a slight tire shake may be noticed within the first few miles/kilometers of operation.
      • Until the tires warm up a slight shake may be felt, but it should subside quickly.

    2. 2Finding the cause

      Possible causes

      • When parked overnight or for a period of time, the tires may set (flat spot) and need a few miles/kilometers to reach normal operating temperature.
      • Tires may be designed with a nylon overlay configuration to enhance integrity at high speeds.

      Steps to confirm (in the document’s order)

      • Before measuring tires on force variation equipment, drive the vehicle a minimum of 24 km (15 mi) to remove any flat spotting.

    3. 3Correction

      Caution

      • Do not attempt repairs or replace components for this temporary flat spotting condition.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2022 and prior GM passenger cars and light duty trucks.
    • Condition：Under certain circumstances a slight tire shake may be noticed within the first few miles/kilometers of operation.
    • Cause：When parked overnight or for a period of time, the tires may set (flat spot) and need a few miles/kilometers to reach normal operating temperature.
    • Cause：Tires may be designed with a nylon overlay configuration to enhance integrity at high speeds.
    • Condition：Until the tires warm up a slight shake may be felt, but it should subside quickly.
    • Confirm：Before measuring tires on force variation equipment, drive the vehicle a minimum of 24 km (15 mi) to remove any flat spotting.
    • Caution：Do not attempt repairs or replace components for this temporary flat spotting condition.

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

    Remedy
    This service bulletin provides information for dealers/technicians on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment Tires.

  3. Manufacturer communication2005–2006 GMC YUKON ・ 2007-02-22

    Tire Wear Vibration

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      P245/70R17 GENERAL AMERITRAC TIRE WEAR VIBRATION. *KB UPDATED 12/13/07. *NJ UPDATED 1/30/08. *NJ UPDATED 5/25/11. *PE

    Read the sentences of the record
    Remedy
    P245/70R17 GENERAL AMERITRAC TIRE WEAR VIBRATION. *KB UPDATED 12/13/07. *NJ UPDATED 1/30/08. *NJ UPDATED 5/25/11. *PE

  4. Owner complaint2000 GMC YUKON ・ 2001-01-30

    Tread separation on left rear tire while driving

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    WHILE DRIVING, CONSUMER FELT VIBRATION AND IN REARVIEW MIRROR COULD SEE TREAD FLAPPING, THE LEFT REAR FIRESTONE WILDERNESS LE TIRE HAD EXPERIENCED TREAD SEPARATION, TIRE SIZE P265/70R16, DOT # V672WL11800. *SLC

WHEELS3

  1. Manufacturer communication2006 GMC YUKON DENALI ・ 2024-05-01(5 earlier editions of this document folded here)

    Tire Radial Force Variation (RFV) Service Bulletin

    1. 1Fault

      • The most common ride concern involving tire radial force variation is shake on smooth roads at highway speed, 105-115 km/h (65-70 mph).

    2. 2Finding the cause

      Possible causes

      • Tire related smooth road highway speed shake can be caused by three conditions: imbalance, out of round and tire force variation.

      Steps to confirm (in the document’s order)

      1. With the vehicle raised, center the wheels on the hub by loosening all wheel nuts and hand-tightening them while shaking the wheel, then torque to specification with a torque wrench, not a torque stick.
      2. If light brake application increases the pulsation felt in the steering wheel, go to the brake-induced pulsation diagnosis in the Brakes section of the service manual.
      3. A reading of 35 to 50 Hz typically indicates a first order propshaft vibration.
      4. Generally a reading between 10 and 20 Hz indicates a tire/wheel vibration.
      5. If vibration continues after 10 minutes of driving above 72 km/h (45 mph), temporary tire flat-spotting can be ruled out.
      2 more points

    3. 3Correction

      Repair

      • If the radial runout of a tire/wheel assembly is more than 0.040 in (1.02 mm), match mount the tire to the wheel to get below 0.040 in (1.02 mm).

      Caution

      • On the balancer always center the wheel by the pilot bore; never use the hub-cap bore, since it is not a precision machined surface.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2024 and prior GM passenger cars and light duty trucks.
    • Condition：The most common ride concern involving tire radial force variation is shake on smooth roads at highway speed, 105-115 km/h (65-70 mph).
    • Cause：Tire related smooth road highway speed shake can be caused by three conditions: imbalance, out of round and tire force variation.
    • Confirm：With the vehicle raised, center the wheels on the hub by loosening all wheel nuts and hand-tightening them while shaking the wheel, then torque to specification with a torque wrench, not a torque stick.
    • Confirm：If light brake application increases the pulsation felt in the steering wheel, go to the brake-induced pulsation diagnosis in the Brakes section of the service manual.
    • Confirm：A reading of 35 to 50 Hz typically indicates a first order propshaft vibration.
    • Confirm：Generally a reading between 10 and 20 Hz indicates a tire/wheel vibration.
    • Confirm：If vibration continues after 10 minutes of driving above 72 km/h (45 mph), temporary tire flat-spotting can be ruled out.
    • Caution：On the balancer always center the wheel by the pilot bore; never use the hub-cap bore, since it is not a precision machined surface.
    • Confirm：Assembly radial force variation guide: P-Metric tires on light trucks, 24 lbs (11 kg) or less.
    • Confirm：Assembly radial force variation guide: LT-tires on light trucks, 35 lbs (16 kg) or less.
    • Repair：If the radial runout of a tire/wheel assembly is more than 0.040 in (1.02 mm), match mount the tire to the wheel to get below 0.040 in (1.02 mm).

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

    Remedy
    This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).

  2. Manufacturer communication2006 GMC YUKON DENALI ・ 2023-06-05(6 earlier editions of this document folded here)

    Vibration After Tire Mounting / Wheel Slip Prevention

    1. 1Fault

    2. 2Finding the cause

      Possible causes

      • Vibration shortly after tires are mounted may be caused by the tires slipping on the wheels, which moves the imbalance point of the tire away from the weight location.
      • Wheel slip is most common on clear coated or chrome wheels with very smooth bead seat areas, but may also occur on other alloy or steel wheels.
      • One reason is an excessive amount of lubricant, or lubricant applied in the wrong locations.

      Steps to confirm (in the document’s order)

      • Put a temporary mark on the tire at the valve stem and drive: slip of less than one inch is probably not contributing; slip greater than one inch with a ride disturbance felt may be causing the vibration.

    3. 3Correction

      Repair

      1. On the wheel, lubricate the safety humps, leave the rim flanges dry and lubricate the drop center area only for difficult to mount tires.
      2. Complete the mounting within 10 minutes of applying the mounting lubricant.
      3. Inflate the tires to 275 kPa (40 psi) when mounting, then reduce to the desired operating pressure.
      4. After rebalancing and fitting, park the vehicle for one hour to let the lubricant evaporate.

      Caution

      • This test is only effective if the vehicle was serviced within the last couple of hours.
      • Do not use products containing silicone, alcohol, petroleum based products, solvents or corrosives for cleaning or lubrication.
      • The vehicle should not be driven aggressively (hard acceleration or braking) for up to 24 hours after tire mounting, so the lubricant can dry.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2024 and prior GM passenger cars and trucks.
    • Cause：Vibration shortly after tires are mounted may be caused by the tires slipping on the wheels, which moves the imbalance point of the tire away from the weight location.
    • Cause：Wheel slip is most common on clear coated or chrome wheels with very smooth bead seat areas, but may also occur on other alloy or steel wheels.
    • Cause：One reason is an excessive amount of lubricant, or lubricant applied in the wrong locations.
    • Confirm：Put a temporary mark on the tire at the valve stem and drive: slip of less than one inch is probably not contributing; slip greater than one inch with a ride disturbance felt may be causing the vibration.
    • Caution：This test is only effective if the vehicle was serviced within the last couple of hours.
    • Caution：Do not use products containing silicone, alcohol, petroleum based products, solvents or corrosives for cleaning or lubrication.
    • Repair：On the wheel, lubricate the safety humps, leave the rim flanges dry and lubricate the drop center area only for difficult to mount tires.
    • Repair：Complete the mounting within 10 minutes of applying the mounting lubricant.
    • Repair：Inflate the tires to 275 kPa (40 psi) when mounting, then reduce to the desired operating pressure.
    • Repair：After rebalancing and fitting, park the vehicle for one hour to let the lubricant evaporate.
    • Caution：The vehicle should not be driven aggressively (hard acceleration or braking) for up to 24 hours after tire mounting, so the lubricant can dry.

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

    Remedy
    This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).

  3. Manufacturer communication2002–2003 GMC YUKON ・ 2003-07-24

    Tire Air Pressure Loss and Wheel Vibration on Six Bolt Steel Wheels

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      TIRE AIR PRESSURE LOSE AND/OR EXCESSIVE WHEEL VIBRATION CONDITION ON MODELS WITH SIX BOLT 16X6-1/2 FULL-FACE STEEL WHEELS. *TT *JB

    Read the sentences of the record
    Remedy
    TIRE AIR PRESSURE LOSE AND/OR EXCESSIVE WHEEL VIBRATION CONDITION ON MODELS WITH SIX BOLT 16X6-1/2 FULL-FACE STEEL WHEELS. *TT *JB

ENGINE AND ENGINE COOLING2

  1. Manufacturer communication2004–2006 GMC YUKON DENALI ・ 2023-11-22(1 earlier editions of this document folded here)

    Vibration Analysis Worksheet Service Bulletin

    1. 1Fault

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. When diagnosing vibration, use the worksheet together with the Vibration Analysis - Road Testing procedure in the service information.
      2. Place the sensor where the vibration is felt: on the seat track for a seat complaint, on the steering column for a steering wheel complaint.
      3. Moving the sensor to other areas, look for the same Hz reading with the greatest amplitude.
      4. If a system balance was attempted and the vibration remains, check ring gear backlash at each tooth; readings should not vary more than 0.050 mm (0.002 in).
      5. Aluminum wheel/tire runout measured on the vehicle: maximum 0.030 in (.762 mm).
      2 more points

    3. 3Correction

      This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2024 and prior GM passenger cars and trucks.
    • Confirm：When diagnosing vibration, use the worksheet together with the Vibration Analysis - Road Testing procedure in the service information.
    • Confirm：Place the sensor where the vibration is felt: on the seat track for a seat complaint, on the steering column for a steering wheel complaint.
    • Confirm：Moving the sensor to other areas, look for the same Hz reading with the greatest amplitude.
    • Confirm：If a system balance was attempted and the vibration remains, check ring gear backlash at each tooth; readings should not vary more than 0.050 mm (0.002 in).
    • Confirm：Aluminum wheel/tire runout measured on the vehicle: maximum 0.030 in (.762 mm).
    • Confirm：Hub mounting surface runout: maximum 0.005 in (0.132 mm).
    • Confirm：Wheel stud runout: maximum 0.010 in (0.254 mm).

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

    Remedy
    This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

  2. Owner complaint2006 GMC YUKON ・ 2006-12-05

    Clunking noise when turning wheel, vibration at 65 MPH and more

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    2006 YUKON MAKES A CLUNKING NOISE WHEN TURNING THE WHEEL, VIBRATION IS ALSO NOTICED WHEN DRIVING 65 MPH (= 104.6 km/h). (5 more)
    Remedy
    THE VEHICLE WAS RETURNED AND THEY REPLACED THE RIGHT FRONT TIRE WHICH THEY CLAIMED WAS DEFECTIVE FROM THE FACTORY. (5 more)
    Inspection
    THE VEHICLE WAS TAKEN TO SERVICE DEALER WHO DETERMINED THAT THE UPPER AND LOWER CONTROL ARMS NEEDED TO BE REPLACED. (1 more)

POWER TRAIN2

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2008-04-07

    Eaton Locking Differential Chatter Shudder Noise on Turns (RPO G80)

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      EATON LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS, EQUIPPED WITH A LOCKING REAR DIFFERENTIAL RPO G80. *NJ UPDATED 7/17/2008. *PE

    Read the sentences of the record
    Remedy
    EATON LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS, EQUIPPED WITH A LOCKING REAR DIFFERENTIAL RPO G80. *NJ UPDATED 7/17/2008. *PE

  2. Manufacturer communication2000–2005 GMC YUKON DENALI ・ 2004-11-03

    NVG149 NP3 Transfer Case Bind or Shudder on Turns

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      NVG149 NP3 TRANSFER CASE MAY EXHIBIT A BIND OR SHUDDER ON TURNS. *TC

    Read the sentences of the record
    Remedy
    NVG149 NP3 TRANSFER CASE MAY EXHIBIT A BIND OR SHUDDER ON TURNS. *TC

STEERING2

  1. Owner complaint2003 GMC YUKON ・ 2005-08-01

    Multiple chassis problems: front end vibration and others

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    AFTER THE NEAR MISS, I REALIZED THAT THE VEHICLE HAD LOST POWER STEERING, ONLY TO THE RIGHT.
    Remedy
    IN THE PAST, GM SERVICE HAS ALIGNED THE FRONT END, BALANCED WHEELS, REPLACED TIRES, REPLACED THE POWER STEERING PUMP, AND REPLACED THE STEERING GEAR.
    Consequence
    I HAD A NEAR MISS AS THERE WAS TRAFFIC COMING FROM BOTH DIRECTIONS ON A ROAD WITH A POSTED SPEED LIMIT OF 45 MPH (= 72.4 km/h).

  2. Owner complaint2003 GMC YUKON ・ 2005-08-01

    Intermittent loss of power steering and front-end vibration at highway speeds

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    AFTER THE NEAR MISS, I REALIZED THAT THE VEHICLE HAD LOST POWER STEERING, ONLY TO THE RIGHT.
    Remedy
    IN THE PAST, GM SERVICE HAS ALIGNED THE FRONT END, BALANCED WHEELS, REPLACED TIRES, REPLACED THE POWER STEERING PUMP, AND REPLACED THE STEERING GEAR.
    Consequence
    I HAD A NEAR MISS AS THERE WAS TRAFFIC COMING FROM BOTH DIRECTIONS ON A ROAD WITH A POSTED SPEED LIMIT OF 45 MPH (= 72.4 km/h).

SUSPENSION2

  1. Manufacturer communication2000–2005 GMC YUKON DENALI ・ 2004-08-25

    Rear Axle Locking Differential Chatter Shudder Noise on Turns

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      REAR AXLE LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS. *MJ

    Read the sentences of the record
    Remedy
    REAR AXLE LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS. *MJ

  2. Manufacturer communication2002–2006 GMC YUKON ・ 2003-04-09

    Tire Bead Splits and Wheel Vibration Service Communication

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Remedy
    TIRE SLOWLY GOES FLAT AND/OR EXCESSIVE WHEEL VIBRATION CAUSED BY BEAD SPLITS (REPLACE WHEELS WITH NEW HEAVY DUTY RIM VERSION) *TT *AR UPDATED 4/11/08. *NJ

STRUCTURE1

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2017-08-15

    Preliminary Information - Vibration Diagnosis Using Pico Oscilloscope

    1. 1Fault

      • Customer vibration complaints are among the most challenging to diagnose and repair accurately.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. Drive the vehicle to verify the condition and record a Pico data file of the concern.
      2. Review the Pico file and use it to help determine the root cause or component.

    3. 3Correction

      Repair

      • Repair the vehicle using the Pico information together with any published information relevant to the vibration frequency observed.

      Caution

      • Without knowing the vibration frequency, repair attempts are just spinning wheels.
      • Component level vibrations such as blower motor, brake pulsation or shudder on turns do not require a Pico file; the requirement is for vehicle level vibration complaints.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to all 2000 and newer GM vehicles.
    • Condition：Customer vibration complaints are among the most challenging to diagnose and repair accurately.
    • Caution：Without knowing the vibration frequency, repair attempts are just spinning wheels.
    • Confirm：Drive the vehicle to verify the condition and record a Pico data file of the concern.
    • Confirm：Review the Pico file and use it to help determine the root cause or component.
    • Repair：Repair the vehicle using the Pico information together with any published information relevant to the vibration frequency observed.
    • Caution：Component level vibrations such as blower motor, brake pulsation or shudder on turns do not require a Pico file; the requirement is for vehicle level vibration complaints.

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

    Remedy
    This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number.

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