Squeak and/or Groan Noise from Brake Pedal Area – 2013-2014 Buick Chevrolet GMC

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Bulletin No.: PI1466
Date: Apr-2015
Subject: Squeak and/or Groan Noise from Brake Pedal Area Upon Brake Application
Models: 2013-2014 Buick Enclave
2013-2014 Chevrolet Traverse
2013-2014 GMC Acadia
Built Prior to January 1, 2014
Attention: This PI also applies to any of the above models that may be Export vehicles.
Condition/Concern
Some customers may comment on a squeak and/or groan noise from the brake pedal area upon brake pedal application.
The noise may be more predominant when outside ambient temperatures are warmer and/or after repeated use of the brake pedal.
Important: This condition does not affect the brake pedal performance or function.
This may be caused by the valve assembly in the brake booster being misaligned, causing the grease on the internal mating seal to be wiped away over time and creating a noise.
Recommendation/Instructions
If you experience a vehicle with the above condition, replace the power vacuum brake booster. Refer to Power Vacuum Brake Booster Replacement in SI.
Parts Information
Part Number Description
25879631 BOOSTER ASM-P/B
Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
Labor Operation Description Labor Time
2441580 Power Vacuum Brake Booster Replacement Use Published Labor Operation Time

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