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GMC Yukon XLModel years 2000–2006

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BrakesModel years 2004–2004Manufacturer

Service Brake Booster message on a Hydroboost vehicle with DTC C0136 (instrument cluster not SPS programmed)

The article is worded by class: all full-size 2004 Cadillac, Chevrolet and GMC trucks and utilities with the Hydroboost brake system.

There have been reports of the Service Brake Booster message being displayed on vehicles equipped with a Hydroboost brake system.

The Service Brake Booster message notifies the driver of a Supplemental Brake Assist (SBA) concern on vehicles with a vacuum boost brake system.

The message could be caused by the IPC being programmed incorrectly.

If the IPC was replaced in an earlier unrelated repair and was not SPS programmed, the message is displayed after the IPC does not receive a valid state of health signal from the SBA for 5 consecutive ignition cycles.

How to tell

What to do

  1. During normal diagnostics a DTC C0136 may be present in the IPC; this DTC is not in SI for Sport Utility vehicles, because all Sport Utilities use Hydroboost brake systems starting in 2004.
  2. To be sure the vehicle is repaired, cycle the ignition off and on at least 5 consecutive times, staying in each position at least 30 seconds.
  3. To correct the concern, SPS program the IPC.

Applies to

  • Applies to all full-size 2004 Cadillac, Chevrolet and GMC trucks and utilities with the Hydroboost brake system.
See the evidence (1 documents, 8 passages)
DocumentPublisherDate
[1]GM TechLink, August 2005 ↗
ManufacturerGeneral Motors
2005-08-01
  • Applies toApplies to all full-size 2004 Cadillac, Chevrolet and GMC trucks and utilities with the Hydroboost brake system.

    This information applies to all full-size 2004 Cadillac, Chevrolet and GMC trucks and utilities with Hydroboost brake system.— [1]
  • Why it happensThe Service Brake Booster message notifies the driver of a Supplemental Brake Assist (SBA) concern on vehicles with a vacuum boost brake system.

    The Service Brake Booster message is used to notify the driver of a Supplemental Brake Assist (SBA) concern on vehicles equipped with a vacuum boost brake system.— [1]
  • First signsThere have been reports of the Service Brake Booster message being displayed on vehicles equipped with a Hydroboost brake system.

    There have been reports of the Service Brake Booster Message being displayed on vehicles equipped with a Hydroboost brake system.— [1]
  • Why it happensThe message could be caused by the IPC being programmed incorrectly.

    This message could be caused by the IPC being programmed incorrectly.— [1]
  • Why it happensIf the IPC was replaced in an earlier unrelated repair and was not SPS programmed, the message is displayed after the IPC does not receive a valid state of health signal from the SBA for 5 consecutive ignition cycles.

    If the IPC was replaced on a previous unrelated repair and was not SPS programmed, this message will be displayed after the IPC does not receive a valid state of health signal from the SBA for 5 consecutive ignition cycles.— [1]
  • How to confirmDuring normal diagnostics a DTC C0136 may be present in the IPC; this DTC is not in SI for Sport Utility vehicles, because all Sport Utilities use Hydroboost brake systems starting in 2004.

    During normal diagnostics, a DTC C0136 may be present in the IPC. This DTC will not be in SI for Sport Utility vehicles, because all Sport Utilities use Hydroboost brake systems starting in 2004.— [1]
  • How to confirmTo be sure the vehicle is repaired, cycle the ignition off and on at least 5 consecutive times, staying in each position at least 30 seconds.

    To be sure the vehicle is repaired, cycle the ignition to off and on at least 5 consecutive times, delaying in each position at least 30 seconds.— [1]
  • RepairTo correct the concern, SPS program the IPC.

    To correct this concern, SPS program the IPC.— [1]

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