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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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1 conditions added

Common on this vehicle:

causeEngine Control ModuleRemove

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1 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.

Component named as the cause

Work done

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 (1)

ELECTRICAL SYSTEM1

  1. Manufacturer communication2000–2006 GMC YUKON XL ・ 2021-06-14

    ECM Software Update for Auto Stop State of Charge Threshold

    1. 1Fault

      • The engine control module (ECM) software may allow the Auto Stop to occur at a state of charge below 65%.

    2. 2Finding the cause

      Possible causes

      • Auto Stop is supposed to be inhibited at 65% to protect against excessive battery wear and discharge.

      Steps to confirm (in the document’s order)

      • Involved vehicles are marked "open" on the Investigate Vehicle History screen in the GM Global Warranty Management system.

    3. 3Correction

      Repair

      • Dealers are to reprogram the K20 Engine Control Module.

      Parts

      • No parts are required for this software update.

      Caution

      • Do not download or install the files wirelessly.
      • Clear DTCs after programming is complete.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model list includes the 2021 GMC Yukon and Yukon XL.
    • Condition：The engine control module (ECM) software may allow the Auto Stop to occur at a state of charge below 65%.
    • Cause：Auto Stop is supposed to be inhibited at 65% to protect against excessive battery wear and discharge.
    • Confirm：Involved vehicles are marked "open" on the Investigate Vehicle History screen in the GM Global Warranty Management system.
    • Repair：Dealers are to reprogram the K20 Engine Control Module.
    • Parts：No parts are required for this software update.
    • Caution：Do not download or install the files wirelessly.
    • Caution：Clear DTCs after programming is complete.

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

    Remedy
    Service Update Bulletin (Labor Codes Added). Certain vehicles may have a condition where the engine control module (ECM) software allows the Auto Stop to occur at a state of charge below 65%. Auto Stop is supposed to be inhibited at 65% to protect against excessive battery wear and discharge. Dealers are to reprogram the ECM.