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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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2 conditions added

Common on this vehicle:NoiseWarning lightLoss of engine power, no accelerationVibration or shudderLeakShifting faultGauge or instrument faultParking brake

Record by record

3 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.

Work done

How it is said to have ended

  • result not stated1

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 (3)

AIR BAGS1

  1. Owner complaint2005 GMC YUKON XL ・ 2014-04-08

    Electronic problems including service air bag indicator

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    CONSUMER WRITES IN REGARDS TO VARIOUS ELECTRONIC PROBLEMS INCLUDING SERVICE AIR BAG INDICATOR. (1 more)
    Remedy
    ALSO, THE TRANSFER CASE WAS REPLACED. *JB

ELECTRICAL SYSTEM1

  1. Manufacturer communication2006 GMC YUKON XL ・ 2020-12-07

    Aftermarket ALDL/DLC Interface Devices - Diagnostic Concerns

    1. 1Fault

      • The radio may not shut off after the vehicle is shut down, and bus or LAN traffic may stay active, leading to a discharged battery.
      • C0561 may be stored in the EBCM, leading to a traction control issue, and there may be no high speed LAN communication with various communication U-codes.
      • The SES, MIL or CEL light may be set with numerous communication DTCs such as U0100, U0101, U186B and U1862.
      • The transmission may not shift for one key cycle (TCM in default mode), and gauge readings may be erratic or displays may flicker.

    2. 2Finding the cause

      Possible causes

      • Monitoring devices and other electronic accessories such as aftermarket cruise control or police speed checking devices (RADAR or LIDAR) may cause one or more of the listed concerns.
      • Many of the problems could be caused by an open connection on the HSCAN bus: a device that connects to only one CAN + causes bus errors and erratic ECU behavior.

      Steps to confirm (in the document’s order)

      • If normal diagnostics find no root cause, check for a device plugged into the ALDL or Data Link Connector (DLC) for tracking and/or maintenance interval scheduling.

    3. 3Correction

      Repair

      1. If SI diagnostics do not identify the source and the device is available, try to duplicate the condition, then remove the device to see whether the condition is eliminated.
      2. If removing the DLC interface device resolves the concern, tell the customer the result and that they should work with the device's supplier for further resolution.

      Caution

      • The customer may remove the device for use in another vehicle while theirs is in for service.
      • Some devices carry a second DLC connector, with the device and the rest of the harness hidden out of sight, so the technician may not notice that the diagnostic connector is not in the factory location.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2021 and earlier GM passenger cars and trucks.
    • Condition：The radio may not shut off after the vehicle is shut down, and bus or LAN traffic may stay active, leading to a discharged battery.
    • Condition：C0561 may be stored in the EBCM, leading to a traction control issue, and there may be no high speed LAN communication with various communication U-codes.
    • Condition：The SES, MIL or CEL light may be set with numerous communication DTCs such as U0100, U0101, U186B and U1862.
    • Condition：The transmission may not shift for one key cycle (TCM in default mode), and gauge readings may be erratic or displays may flicker.
    • Confirm：If normal diagnostics find no root cause, check for a device plugged into the ALDL or Data Link Connector (DLC) for tracking and/or maintenance interval scheduling.
    • Cause：Monitoring devices and other electronic accessories such as aftermarket cruise control or police speed checking devices (RADAR or LIDAR) may cause one or more of the listed concerns.
    • Cause：Many of the problems could be caused by an open connection on the HSCAN bus: a device that connects to only one CAN + causes bus errors and erratic ECU behavior.
    • Caution：The customer may remove the device for use in another vehicle while theirs is in for service.
    • Caution：Some devices carry a second DLC connector, with the device and the rest of the harness hidden out of sight, so the technician may not notice that the diagnostic connector is not in the factory location.
    • Repair：If SI diagnostics do not identify the source and the device is available, try to duplicate the condition, then remove the device to see whether the condition is eliminated.
    • Repair：If removing the DLC interface device resolves the concern, tell the customer the result and that they should work with the device's supplier for further resolution.

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

    Remedy
    The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

POWER TRAIN1

  1. Manufacturer communication2000–2003 GMC YUKON XL ・ 2003-12-04

    Transmission Stuck in Third Gear or Inoperative Instrument Cluster

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      MALFUNCTION INDICATOR LAMP (MIL) IS ON; THE TRANSMISSION IS STUCK IN THIRD GEAR; AND / OR THE INSTRUMENT CLUSTER IS INOPERATIVE. *TT

    Read the sentences of the record
    Remedy
    MALFUNCTION INDICATOR LAMP (MIL) IS ON; THE TRANSMISSION IS STUCK IN THIRD GEAR; AND / OR THE INSTRUMENT CLUSTER IS INOPERATIVE. *TT