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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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1 conditions added

Common on this vehicle:Gauge or instrument faultNoiseWarning lightCorrosion or rustLeakReduced brakingAir conditioning or heaterVibration or shudder

Record by record

48 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 held for a while2
  • says it came back4
  • says it did not fix it6
  • 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 (32)

Known issuesDTCs P2108, P1516 and U0107 (do not replace the TAC module)1

  1. Manufacturer communication2006 GMC YUKON ・ 2007-01-25

    LR4, LY2, L33, LH6, LM7, L59, LC9, LMG, LY5, LS2, LQ9, LQ4, L76, LY6 Throttle Actuator Control Module Communication

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      LR4, LY2, L33, LH6, LM7, L59, LC9, LMG, LY5, LS2, LQ9, LQ4, L76, LY6 THROTTLE ACTUATOR CONTROL (TAC). MODULE CODES, MIL/SES DTC'S P2108, P1516, U0107, REDUCED ENGINE POWER. *KB

      What the documents say to do

      DTCs P2108, P1516 and U0107 (do not replace the TAC module)

      Confirm

      • Perform the diagnostics for the DTCs, but delete the steps that involve replacing the TAC module.

      Caution

      • Do not replace the TAC module; the reference given is PIP 3812A.
    Read the sentences of the record
    Remedy
    LR4, LY2, L33, LH6, LM7, L59, LC9, LMG, LY5, LS2, LQ9, LQ4, L76, LY6 THROTTLE ACTUATOR CONTROL (TAC). MODULE CODES, MIL/SES DTC'S P2108, P1516, U0107, REDUCED ENGINE POWER. *KB

Known issuesReduced Engine Power from throttle body connector crimp, broken wire or grounds1

  1. Owner complaint2004 GMC YUKON DENALI ・ 2013-03-03

    Stability control disabled and reduced engine power warnings with 5 MPH speed limit on startup

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    THE "STABILITY CONTROL DISABLED" SENSOR COMES ON FOLLOWED BY "REDUCED ENGINE POWER" AND MY VEHICLE WON'T GO FASTER THAN 5MPH (= 8.05 km/h). (1 more)
    Remedy
    THEY REPLACED THE "CONNECTOR AT THE THROTTLE BODY" AND CHARGED ME $223.09. (1 more)
    Outcome
    THE ISSUE TEMPORARILY WENT AWAY.

Known issuesThrottle body carbon build-up: idle surge, reduced engine power, throttle DTCs (high mileage)1

  1. Manufacturer communication2006 GMC YUKON ・ 2018-01-16

    Engine Control System Update - Idle Surge and Power Mode Issues

    1. 1Fault

      • If enough carbon builds up, an idle surge, deceleration surge, tip-in hesitation, reduced engine power mode, and/or DTCs P0068, P0121, P1516, P2101, P2119 and/or P2176 may be experienced on high mileage vehicles.

    2. 2Finding the cause

      Possible causes

      • As carbon builds up in the throttle body of a high mileage vehicle, the ECM/PCM learns to compensate by increasing the throttle plate angle.

      Steps to confirm (in the document’s order)

      1. If SI diagnosis does not isolate the cause, inspect the throttle body bore and plate for obvious carbon build up.
      2. Depending on the vehicle, the idle learn reset/reset idle learn is normally found on the Tech 2 ECM menu for Module Set Up or Special Functions/TAC System.

    3. 3Correction

      Repair

      1. If carbon is present, follow the Throttle Body Cleaning Procedure in SI to clean the throttle body.
      2. After ensuring that the throttle body bore and plate are clean, perform an idle learn reset/reset idle learn with the Tech 2/GDS and re-evaluate the concern.

      Caution

      • If the throttle body is cleaned without performing an idle learn reset/reset idle learn with the Tech 2, the ECM/PCM may continue to compensate for the previous carbon build up, and the concern may return along with DTCs P0121, P0506 and/or P0507.
      • If the ECM/PCM of a high mileage vehicle is replaced and/or reprogrammed without performing the Throttle/Idle Learn outlined in SI, it may no longer compensate for existing carbon build up in the throttle body.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model table lists the GMC Yukon, model years 2006 - 2018, all V8 engines.
    • Condition：If enough carbon builds up, an idle surge, deceleration surge, tip-in hesitation, reduced engine power mode, and/or DTCs P0068, P0121, P1516, P2101, P2119 and/or P2176 may be experienced on high mileage vehicles.
    • Cause：As carbon builds up in the throttle body of a high mileage vehicle, the ECM/PCM learns to compensate by increasing the throttle plate angle.
    • Confirm：If SI diagnosis does not isolate the cause, inspect the throttle body bore and plate for obvious carbon build up.
    • Repair：If carbon is present, follow the Throttle Body Cleaning Procedure in SI to clean the throttle body.
    • Repair：After ensuring that the throttle body bore and plate are clean, perform an idle learn reset/reset idle learn with the Tech 2/GDS and re-evaluate the concern.
    • Caution：If the throttle body is cleaned without performing an idle learn reset/reset idle learn with the Tech 2, the ECM/PCM may continue to compensate for the previous carbon build up, and the concern may return along with DTCs P0121, P0506 and/or P0507.
    • Caution：If the ECM/PCM of a high mileage vehicle is replaced and/or reprogrammed without performing the Throttle/Idle Learn outlined in SI, it may no longer compensate for existing carbon build up in the throttle body.
    • Confirm：Depending on the vehicle, the idle learn reset/reset idle learn is normally found on the Tech 2 ECM menu for Module Set Up or Special Functions/TAC System.

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

    Remedy
    This PI was superseded to update model years and add information concerning idle surge, reduced engine power mode, and/or DTCs P0068, P0121, P1516, P2101, P2119, and/or P2176 that may be experienced on high mileage vehicles. Please discard PIP4578.

ELECTRICAL SYSTEM9

  1. Owner complaint2000 GMC YUKON DENALI ・ 2014-07-11

    Loss of power and hesitation on acceleration at highway speed

    1. 1Fault

    2. 2Finding the cause

      I HAVE LOOKED UP INFORMATION ON ISSUES THIS TRUCK HAS HAD AND 1 OF THEM IS REGISTERED UNDER NHTSA ID # 100032435 / PIP-4695.GM: LOSS OF POWER HESITATES ON ACCELERATION.

    3. 3Correction

    Read the sentences of the record
    Fault
    THE VEHICLE MAY OPERATE AS IF IT IS IN REDUCED POWER MODE.
    Cause
    I HAVE LOOKED UP INFORMATION ON ISSUES THIS TRUCK HAS HAD AND 1 OF THEM IS REGISTERED UNDER NHTSA ID # 100032435 / PIP-4695.GM: LOSS OF POWER HESITATES ON ACCELERATION.
    Remedy
    *PE I HAVE PURCHASED AN AIR MASS FLOW SENSOR, THROTTLE BODY SENSOR, ALL 4 O2 SENSORS, AND A COOLANT SENSOR.

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

    IP to Body Harness Connector Repair for MIL and DTC P2138

    1. 1Fault

      • The engine warning lamp comes on intermittently with a message or indicator showing Reduced Engine Power.
      • DTC P2138 (Accelerator Pedal Position (APP) Sensor 1-2 Correlation) is set as current or in history.

    2. 2Finding the cause

      Possible causes

      • Water may have entered the instrument panel (IP) to body harness connector, which carries the APP sensor signals to the ECM/PCM.

      Steps to confirm (in the document’s order)

      1. Verify that no aftermarket equipment is electrically connected to the APP sensor signal or low reference circuits, or to any other ECM/PCM 5V reference or low reference circuit.
      2. Locate the IP to body harness connector, which may be in or around the left hand kick panel area or inside the IP.
      3. Inspect for a water leak in the area, using a water hose if necessary to find the source.
      4. Possible water leak points include the A-pillar seals, the sunroof drain lines (if equipped) and the windshield/cowl sealing.
      5. Inspect the terminals of the IP to body harness connector for corrosion and debris.

    3. 3Correction

      Repair

      1. If a water leak is found, repair it as necessary and verify that the repair is effective.
      2. If corrosion or debris is found on the connector terminals, repair as necessary.

      Caution

      • Aftermarket equipment can generate DTC P2138 and/or other DTCs.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2018 and prior GM passenger cars and light duty trucks.
    • Condition：The engine warning lamp comes on intermittently with a message or indicator showing Reduced Engine Power.
    • Condition：DTC P2138 (Accelerator Pedal Position (APP) Sensor 1-2 Correlation) is set as current or in history.
    • Cause：Water may have entered the instrument panel (IP) to body harness connector, which carries the APP sensor signals to the ECM/PCM.
    • Caution：Aftermarket equipment can generate DTC P2138 and/or other DTCs.
    • Confirm：Verify that no aftermarket equipment is electrically connected to the APP sensor signal or low reference circuits, or to any other ECM/PCM 5V reference or low reference circuit.
    • Confirm：Locate the IP to body harness connector, which may be in or around the left hand kick panel area or inside the IP.
    • Confirm：Inspect for a water leak in the area, using a water hose if necessary to find the source.
    • Confirm：Possible water leak points include the A-pillar seals, the sunroof drain lines (if equipped) and the windshield/cowl sealing.
    • Repair：If a water leak is found, repair it as necessary and verify that the repair is effective.
    • Confirm：Inspect the terminals of the IP to body harness connector for corrosion and debris.
    • Repair：If corrosion or debris is found on the connector terminals, repair as necessary.

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

    Remedy
    This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC P2138 set.

  3. Manufacturer communication2005–2006 GMC YUKON DENALI ・ 2018-05-21(1 earlier editions of this document folded here)

    Throttle Position Sensor Cover Replacement

    1. 1Fault

      • The malfunction indicator lamp (MIL) is illuminated with a Reduced Engine Power message displayed.
      • A scan tool may show DTC P2135: Throttle Position (TP) Sensor 1-2 Correlation set as Current or in History.

    2. 2Finding the cause

      Possible causes

      • The condition may be caused by the difference between TP Sensor 1 and TP Sensor 2 exceeding a calibrated value for more than 2 seconds.

      Steps to confirm (in the document’s order)

      1. After installing the new cover, if the scan tool TP Sensor 1 and 2 Agree/Disagree parameter displays Disagree, replace the throttle body assembly.
      2. If DTC P1516, P2101 and/or P2176 are set, replace the throttle body.

    3. 3Correction

      Repair

      1. Clean the throttle body bore and throttle plate with a clean shop towel and GM Top Engine Cleaner, P/N 1052626 (in Canada, P/N 993026), or ACDelco Upper Engine and Fuel Injector Cleaner, P/N 88861803, or an equivalent product.
      2. Remove the old TP sensor cover from the throttle body: grasp the cover, carefully lift it up and separate it from the throttle body.
      3. Tighten the throttle body fasteners to 89 lb in (= 10.1 N·m) (the text prints the metric value as "10 Y").
      4. Reprogram the ECM using the Service Programming System (SPS) with the latest calibration available on TIS2WEB.
      5. Perform the Throttle Learn Reset Procedure.

      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.

      Parts

      • Part number 19259452, Throttle Position (TP) Sensor Cover, quantity 1.

      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 replace the throttle body; follow the procedure in the bulletin instead.
      • If the throttle body is dropped at any time during the procedure, abort the procedure and replace it with a new throttle body assembly.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The Yukon entries are 2008-2011 GMC Canyon, Savana, Sierra, Sierra Denali and Yukon models (note: earlier Yukon model years are not listed).
    • Condition：The malfunction indicator lamp (MIL) is illuminated with a Reduced Engine Power message displayed.
    • Condition：A scan tool may show DTC P2135: Throttle Position (TP) Sensor 1-2 Correlation set as Current or in History.
    • Cause：The condition may be caused by the difference between TP Sensor 1 and TP Sensor 2 exceeding a calibrated value for more than 2 seconds.
    • Caution：Do not replace the throttle body; follow the procedure in the bulletin instead.
    • Repair：Clean the throttle body bore and throttle plate with a clean shop towel and GM Top Engine Cleaner, P/N 1052626 (in Canada, P/N 993026), or ACDelco Upper Engine and Fuel Injector Cleaner, P/N 88861803, or an equivalent product.
    • Repair：Remove the old TP sensor cover from the throttle body: grasp the cover, carefully lift it up and separate it from the throttle body.
    • Caution：If the throttle body is dropped at any time during the procedure, abort the procedure and replace it with a new throttle body assembly.
    • Confirm：After installing the new cover, if the scan tool TP Sensor 1 and 2 Agree/Disagree parameter displays Disagree, replace the throttle body assembly.
    • Confirm：If DTC P1516, P2101 and/or P2176 are set, replace the throttle body.
    • Repair：Tighten the throttle body fasteners to 89 lb in (= 10.1 N·m) (the text prints the metric value as "10 Y").
    • Repair：Reprogram the ECM using the Service Programming System (SPS) with the latest calibration available on TIS2WEB.
    • Repair：Perform the Throttle Learn Reset Procedure.
    • Parts：Part number 19259452, Throttle Position (TP) Sensor Cover, quantity 1.

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

    Remedy
    This technical bulletin provides a procedure for replacing the throttle position sensor cover for concerns regarding a indicator lamp illuminated reduced power message displayed and DTC P2135 set.

  4. Owner complaint2003 GMC YUKON ・ 2017-08-28

    Reduced engine power warning and deceleration while driving

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    WHILE DRIVING APPROXIMATELY 50 MPH (= 80.5 km/h), THE VEHICLE EXPERIENCED INDEPENDENT DECELERATION AND THE REDUCED ENGINE POWER WARNING INDICATOR ILLUMINATED.
    Inspection
    THE VEHICLE WAS PREVIOUSLY TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE FUEL PUMP, SPARK PLUGS, TRANSMISSION, AND ALTERNATOR NEEDED TO BE REPLACED.
    Outcome
    THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED.

  5. Owner complaint2003 GMC YUKON DENALI ・ 2014-02-06

    Reduced engine power and slowing down while driving on highway

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    DRIVING ON HWY GOING APRX 65MPH (= 104.6 km/h). (2 more)
    Consequence
    I MANAGED NOT TO BE REAR ENDED.

  6. Owner complaint2003 GMC YUKON DENALI ・ 2011-12-16

    Exterior lights malfunction and reduced engine power message

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    STARTING IN 2005, THE EXTERIOR ELECTRONICS (I.E. SIGNAL LIGHTS, STOP LIGHTS, HEAD LIGHTS, ETC) BEGAN TO MALFUNCTION. (5 more)
    Cause
    MY UNDERSTANDING, ACCORDING TO HUNDREDS OF REPORTS THAT I HAVE READ ON THE MESSAGE BOARDS, IS THAT THIS ISSUE IS CAUSED BY EITHER A WIRING HARNESS THAT LEADS FROM THE ACCELERATOR TO THE THROTTLE BODY OR IT'S A DEFECTIVE THROTTLE BODY ALTOGETHER.
    Inspection
    THEY ISOLATED IT TO A JUNCTION BOX WHERE ALL OF THE ELECTRONICS TERMINATE.

  7. Owner complaint2003 GMC YUKON DENALI ・ 2011-11-22

    Instrument cluster, stability control, and reduced engine power issues

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    DECEMBER 2008- INSTRUMENT CLUSTER WENT OUT- SPEEDOMETER NO LONGER WORKING DECEMBER 2008- BATTERY GAUGE NO LONGER WORKING MARCH 2009- STABILITRAK ISSUES...SOMETIMES THE STABILITRAK WOULD WORK AND AT TIMES IT WOULD NOT WORK JULY 2009 TO JANUARY 2010- REDUCED ENGINE POWER (ALMOST CAUSE 2 WRECKS) COULD NOT PERFORM A DIAGNOSIS...COULD NOT READ COMPUTER. (1 more)
    Remedy
    CHANGED FUEL PUMP.

  8. Manufacturer communication2005–2006 GMC YUKON DENALI ・ 2009-06-02

    Intermittent MIL/DTC P2138 with Reduced Engine Power

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Remedy
    GENERAL MOTORS: INTERMITTENT MIL/SES/ DTC P2138 WITH REDUCED ENGINE POWER (REPAIR INSTRUMENT PANEL (IP) TO BODY HARNESS CONNECTOR). 2005-08 GM PASSENGERS CARS/LIGHT DUTY TRUCKS (INCL. SATURNS). *PE UPDATED 11/5/10. *PE UPDATED 4/4/11. *PE UPDATED 2/3/16. *PE

  9. Owner complaint2003 GMC YUKON ・ 2004-11-03

    Fuel pump failure and steering jamming while driving and towing

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    PRIOR TO STALLING THERE WAS SOME HESITATION AND JERKING AS IF NOT GETTING FUEL TO ENGINE. (3 more)
    Remedy
    THE DEALER TOOK VEHICLE TO DEALERSHIP IN ARIZONA, AND FUEL PUMP HAD TO BE REPLACED. (1 more)

ENGINE AND ENGINE COOLING5

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2023-09-26

    Normal Transmission Shift and Throttle Response Delay

    1. 1Fault

      • A sag or hesitation may be noticed when coasting at low speeds of less than 24 km/h (15 mph) with a closed throttle and then aggressively applying the throttle.
      • With an automatic transmission, after a hard complete stop with a closed throttle immediately followed by an aggressive throttle opening, the downshifts may not be completed by the time the throttle is opened.
      • A sag or hesitation may also be noticed while cruising at highway speeds and then aggressively increasing the throttle, forcing a down-shift.

    2. 2Finding the cause

      Possible causes

      • In this maneuver the throttle blade is opened slowly for up to 0.7 seconds, even though the accelerator is applied aggressively, to help minimize driveline lash and clunking.
      • As a result, approximately 0.5 seconds of zero torque may be commanded to allow the shift to first gear to occur.

    3. 3Correction

      Caution

      • All of these conditions are a result of Torque Management and should be considered normal; no repairs should be attempted.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：GM passenger cars and trucks, model years 2000 to 2024.
    • Condition：A sag or hesitation may be noticed when coasting at low speeds of less than 24 km/h (15 mph) with a closed throttle and then aggressively applying the throttle.
    • Cause：In this maneuver the throttle blade is opened slowly for up to 0.7 seconds, even though the accelerator is applied aggressively, to help minimize driveline lash and clunking.
    • Condition：With an automatic transmission, after a hard complete stop with a closed throttle immediately followed by an aggressive throttle opening, the downshifts may not be completed by the time the throttle is opened.
    • Cause：As a result, approximately 0.5 seconds of zero torque may be commanded to allow the shift to first gear to occur.
    • Condition：A sag or hesitation may also be noticed while cruising at highway speeds and then aggressively increasing the throttle, forcing a down-shift.
    • Caution：All of these conditions are a result of Torque Management and should be considered normal; no repairs should be attempted.

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

    Remedy
    The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.

  2. Owner complaint2004 GMC YUKON ・ 2011-08-23

    Reduced engine power during acceleration on 2004 GMC Yukon

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    MOST RECENTLY, YESTERDAY, MY HUSBAND WAS TRYING TO ACCELERATE TO PASS A SLOWER VEHICLE WITH HUGE TIRES ON THE BACK ONLY TO HAVE THIS HAPPEN.
    Remedy
    THEY REPLACED THE ACCELERATOR PEDAL ASSEMBLY, WHICH I BELIEVE INCLUDED THE APP SENSOR, AND CLEANED THE THROTTLE BODY OF EXCESSIVE CARBON BUILD UP.

  3. Owner complaint2003 GMC YUKON ・ 2011-08-20

    Reduced engine power light on after battery jump

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      MY HUSBAND JUMPED IT AND TOOK IT FOR A RIDE.

    Read the sentences of the record
    Fault
    IT WOULDN'T RUN OVER 20 MPH (= 32.2 km/h). (1 more)
    Remedy
    MY HUSBAND JUMPED IT AND TOOK IT FOR A RIDE.

  4. Manufacturer communication2000–2001 GMC YUKON DENALI ・ 2010-03-25

    GM: Loss of Power/Hesitates on Acceleration

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      GM: LOSS OF POWER HESITATES ON ACCELERATION. 4.3, 4.8, 5.3, 5.7 AND 6.0 ENGINES COUPLED WITH THE 4L60E OR 4L65E MAY EXPERIENCE A CONDITION OF HESITATES, MISSES OR LOSS OF POWER UNDER ACCELERATION. THE VEHICLE MAY OPERATE AS IF IT IS IN REDUCED POWER MODE. *PE

    Read the sentences of the record
    Remedy
    GM: LOSS OF POWER HESITATES ON ACCELERATION. 4.3, 4.8, 5.3, 5.7 AND 6.0 ENGINES COUPLED WITH THE 4L60E OR 4L65E MAY EXPERIENCE A CONDITION OF HESITATES, MISSES OR LOSS OF POWER UNDER ACCELERATION. THE VEHICLE MAY OPERATE AS IF IT IS IN REDUCED POWER MODE. *PE

  5. Owner complaint2003 GMC YUKON ・ 2009-12-10

    Power loss while driving at 50 MPH

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3CorrectionNot repaired

      NO REPAIRS WERE MADE.

    Read the sentences of the record
    Fault
    WHILE DRIVING APPROXIMATELY 50 MPH (= 80.5 km/h) THE VEHICLE BEGAN TO LOSE POWER.
    Remedy
    NO REPAIRS WERE MADE.
    Inspection
    THE TECHNICIAN WAS UNABLE TO DUPLICATE THE FAILURE.

ELECTRONIC STABILITY CONTROL (ESC)4

  1. Owner complaint2003 GMC YUKON DENALI ・ 2018-03-21

    Reduced engine power light and speed drops to 20 MPH with check engine codes P0120 and P2135

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Outcome
    THE CONSUMER STATED THE VEHICLE WAS REPAIRED AND REQUESTED WITHDRAW THE COMPLAINT. *JS

  2. Owner complaint2006 GMC YUKON ・ 2017-11-07

    Sudden power loss and reduced engine power warning while driving on freeway

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    MY VEHICLE WAS IN MOTION DRIVING ON THE FREEWAY AT 70 MPH (= 112.7 km/h) WHEN ALL OF THE SUDDEN MY CAR LOST POWER TO 30 MPH (= 48.3 km/h) ALL THE WAY DOWN TO 5 MPH (= 8.05 km/h).I PRESSED ON THE ACCELERATOR TRYING TO GAIN SPEED WITHOUT SUCCESS THE CAR DID NOT ACCELERATE MORE THAN 30 MPH (= 48.3 km/h), NO MATTER HOW MUCH I PRESSED ON THE ACCELERATOR. (1 more)
    Outcome
    THAT DID NOT WORK.

  3. Owner complaint2006 GMC YUKON ・ 2015-10-08

    All lights dim and power loss; later engine hesitation with grinding sound and stiff brake pedal at start from idle

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      I DISCOVERED THAT MANUALLY OVER-RIDING THE TRACTION (SHUTTING IT OFF), IT ELIMINATES THE HESITATION.

    Read the sentences of the record
    Fault
    THE FIRST TIME THIS HAPPENED I WAS DRIVING AT APPROX. 45 MPH (= 72.4 km/h) ON SECONDARY ROAD WHEN ALL LIGHTS DIMMED AND THE VEHICLE POWER WENT DOWN TO ALMOST NOTHING. (5 more)
    Remedy
    I DISCOVERED THAT MANUALLY OVER-RIDING THE TRACTION (SHUTTING IT OFF), IT ELIMINATES THE HESITATION.

  4. Owner complaint2004 GMC YUKON DENALI ・ 2012-10-16

    Stability control disabled and reduced engine power warnings, then engine stalls while driving

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    WHILE IN THE MIDDLE OF DRIVING, THE "STABILITY CONTROL DISABLED" SENSOR COMES ON FOLLOWED BY "REDUCED ENGINE POWER" AND MY VEHICLE JUST SHUTS OFF.
    Remedy
    I HAVE ALREADY REPLACED A HUB THAT MY MECHANIC SAID WAS CAUSING A "TRACTION CONTROL" PROBLEM FROM EARLIER.

ENGINE2

  1. Owner complaint2003 GMC YUKON DENALI ・ 2013-12-30

    Traction control and reduced engine power warning lights; vehicle stalled

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3CorrectionNot repaired

      THE VEHICLE WAS NOT REPAIRED.

    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT THE TRACTION CONTROL AND THE REDUCED ENGINE POWER WARNING LIGHTS ILLUMINATED AND CAUSED THE VEHICLE STALLED.
    Remedy
    THE VEHICLE WAS NOT REPAIRED.
    Inspection
    THE VEHICLE WAS TAKEN TO THE DEALER, WHO WAS UNABLE TO DIAGNOSE THE FAILURE.

  2. Owner complaint2004 GMC YUKON ・ 2013-10-15

    Reduced engine power occurring at various speeds since 2005

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    SINCE GETTING THIS CAR IN 2005, MY HUSBAND AND I HAVE EXPERIENCED REDUCED ENGINE POWER. (1 more)
    Consequence
    THIS ACTUALLY HAPPENED.

FUEL SYSTEM, GASOLINE2

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2018-05-21(1 earlier editions of this document folded here)

    E85 Fuel Effects on Non-E85 Vehicles Information

    1. 1Fault

      • Using this fuel in a non-compatible vehicle may cause lean driveability concerns such as hesitation, sag and/or possible stalling.
      • Fuel trim DTC P0171 and/or P0174 may set.
      • Misfire DTC P0300 may set.
      • A Traction Control, Stability System or ABS lamp may illuminate, or a message may display in the DIC (if equipped).
      • Harsh and/or firm transmission shifts may occur because the transmission defaults to maximum line pressure.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. Alcohol content is checked using Special Tool J-44175-A Fuel Composition Tester or CH-44175-A Fuel Composition Tester.
      2. General Motors started putting yellow gas caps on E85 Flex Fuel Vehicles (FFVs) as of Model Year 2006.

    3. 3Correction

      Repair

      • If the ethanol content exceeds the Owner Manual maximum of 10% or 15%, drain the fuel and refill the vehicle with gasoline, preferably a Top Tier brand.

      Caution

      • All Model Year 2011 and older non-FFV gasoline vehicles are designed to run on fuel containing no more than 10% ethanol.
      • Diesel engines are not E85 compatible.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The list of compatible flexible-fuel vehicles includes 2002–2005 fullsize pickups and utilities with 5.3L, RPO L59.
    • Applies to：The list of compatible flexible-fuel vehicles includes 2006 Sierra, Yukon and Yukon XL with 5.3L, RPO L59.
    • Caution：All Model Year 2011 and older non-FFV gasoline vehicles are designed to run on fuel containing no more than 10% ethanol.
    • Caution：Diesel engines are not E85 compatible.
    • Condition：Using this fuel in a non-compatible vehicle may cause lean driveability concerns such as hesitation, sag and/or possible stalling.
    • Condition：Fuel trim DTC P0171 and/or P0174 may set.
    • Condition：Misfire DTC P0300 may set.
    • Condition：A Traction Control, Stability System or ABS lamp may illuminate, or a message may display in the DIC (if equipped).
    • Condition：Harsh and/or firm transmission shifts may occur because the transmission defaults to maximum line pressure.
    • Confirm：Alcohol content is checked using Special Tool J-44175-A Fuel Composition Tester or CH-44175-A Fuel Composition Tester.
    • Repair：If the ethanol content exceeds the Owner Manual maximum of 10% or 15%, drain the fuel and refill the vehicle with gasoline, preferably a Top Tier brand.
    • Confirm：General Motors started putting yellow gas caps on E85 Flex Fuel Vehicles (FFVs) as of Model Year 2006.

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

    Remedy
    This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.

  2. Owner complaint2003 GMC YUKON ・ 2004-10-17

    Engine stalling while driving with check engine and traction control lights on

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    DRIVING 60 MPH (= 96.6 km/h) ON A 20 MILE (= 32.2 km) BRIDGE, THE ENGINE FAILED (ENGINE LIGHT AND TRACTION CONTROL LIGHT WERE ON. (1 more)
    Remedy
    REPLACED HARNESS. (1 more)
    Inspection
    THEY FOUND 2 MORE BROKEN WIRES. (1 more)

AIR BAGS1

  1. Owner complaint2001 GMC YUKON ・ 2018-01-31

    Airbags did not deploy and brakes hesitated during accident

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    MY CONCERN IS THE NO AIRBAGS DEPLOYED AT ALL. (2 more)
    Consequence
    ON 01/23/2018 I GOT INTO AN ACCIDENT. (1 more)

EQUIPMENT1

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2021-04-19(1 earlier editions of this document folded here)

    Winter Fuel Grade Use in Warm Months 2020 – Drivability Issues

    1. 1Fault

      • In rare instances customers may complain of a fuel smell, longer starts, hesitation and, in extreme cases, engine stalls.
      • Any combination of DTCs P0300, P0171, P0174 and P228C may be set.

    2. 2Finding the cause

      Possible causes

      • Using winter fuel in summer weather may cause drivability concerns.

      Steps to confirm (in the document’s order)

      • The concern should not be a single event but multiple occurrences associated with hot days.

    3. 3Correction

      Caution

      • No repair is required; the vehicles are not damaged and will recover.
      • There is no other remedy until summer fuel and/or cooler weather is available.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to all brands and models with gasoline engines, model years 2000 - 2022.
    • Applies to：The involved region is North America.
    • Condition：In rare instances customers may complain of a fuel smell, longer starts, hesitation and, in extreme cases, engine stalls.
    • Condition：Any combination of DTCs P0300, P0171, P0174 and P228C may be set.
    • Cause：Using winter fuel in summer weather may cause drivability concerns.
    • Confirm：The concern should not be a single event but multiple occurrences associated with hot days.
    • Caution：No repair is required; the vehicles are not damaged and will recover.
    • Caution：There is no other remedy until summer fuel and/or cooler weather is available.

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

    Remedy
    This Preliminary information communicates the use of Winter grade fuel during the warm months of 2020 and the potential rivability issues that it can cause. The ongoing Coronavirus (COVID-19) pandemic has caused significant reductions in driving and fuel use.  Due to the surplus of winter grade fuel sitting in storage (pipelines/stations) the EPA is waiving the fuel vapor requirement.  This will extend the use of winter fuel into the summer months. The drivability concerns should not be single events but should be multiple occurrences associated with hot days.

POWER TRAIN1

  1. Owner complaint2005 GMC YUKON DENALI ・ 2016-04-09

    Accelerator stops working during acceleration

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3CorrectionNot repaired

      TO DATE, NO ONE HAS BEEN ABLE TO FIX THE PROBLEM.

    Read the sentences of the record
    Fault
    WHEN ACCELERATING FROM A STOP OR ANYTIME WHEN TRAVELING BETWEEN 1- 2-3RD GEARS, THE ACCELERATOR WILL SUDDENLY STOP WORKING AND THE "TRACTION ACTIVE" LIGHT WILL COME ON. (4 more)
    Remedy
    TO DATE, NO ONE HAS BEEN ABLE TO FIX THE PROBLEM.
    Consequence
    THE SCARY THING ABOUT THIS IS THAT WHEN YOU ARE ACCELERATING FROM A STOP AND OTHER CARS ARE ACCELERATING BEHIND YOU, THEY DON'T ANTICIPATE THAT YOU WILL STOP ACCELERATING (THE BRAKE LIGHTS DO NOT COME ON), THEREFORE, THEY ALMOST REAR END ME.

SERVICE BRAKES1

  1. Owner complaint2003 GMC YUKON ・ 2015-10-14

    ABS activation and acceleration hesitation occurring every drive

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    IT OCCURS EVERY TIME I DRIVE MY CAR, EVERY TIME I ACCELERATE AND BRAKE. (2 more)
    Cause
    APPARENTLY, THIS IS CAUSED BY A CORRODED MOUNTING SURFACE FOR THE FRONT WHEEL SPEED SENSORS. (2 more)
    Consequence
    HAZARD:THIS CAN CAUSE INCREASED STOPPING DISTANCES DURING LOW-SPEED BRAKE APPLICATIONS, WHICH COULD RESULT IN A CRASH.

STEERING1

  1. Owner complaint2006 GMC YUKON ・ 2014-01-18

    Steering hesitation during low speed turning

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Remedy
    ALL THE POWER STEERING PUMPS WERE CHANGED TO CORRECT THIS HESITATION.

TRACTION CONTROL SYSTEM1

  1. Owner complaint2004 GMC YUKON ・ 2010-12-05

    Loss of power and traction control message during acceleration

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    FROM A STANDSTILL, WHEN I WOULD ACCELERATE, THE VEHICLE WOULD LOSE POWER AND NOT MOVE AFTER ABOUT 20 FEET (= 6.1 m) OR SO AND A ?TRACTION ACTIVE? (2 more)
    Consequence
    THIS WAS A VERY SERIOUS SAFETY CONCERN AS THE VEHICLE WOULD END UP IN THE MIDDLE OF THE ROAD WITH LOSS OF POWER AND CARS BEHIND ME WILL ALMOST RE END MY CAR.

VEHICLE SPEED CONTROL1

  1. Owner complaint2003 GMC YUKON ・ 2003-03-13

    Check engine light displayed, engine enters reduced power mode

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    WHILE DRIVING OR IDLING, THE "CHECK ENGINE LIGHT" IS DISPLAYED. (1 more)
    Remedy
    DEALER REPLACED ACCELERATOR CONTROL MODULE.
    Outcome
    THIS DID NOT CORRECT THE PROBLEM.

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2 owner complaints have no classified sentences yet, so their causes and repairs are not picked out. Their text is in the list of records.