PI1051

Service Bulletin Details

Public Details for: PI1051

Summary to be provided on a future date.


- 9999 -

Models from 9999
9999 GMC GMC 
File in Section:
Bulletin No.:
Service Bulletin
Date:
PI1051
September, 2013
PRELIMINARY INFORMATION
Subject:
Bump Feeling When Shifting from Drive to Reverse, Harsh Shifts into Reverse
Models:
2011-2014 Chevrolet Silverado 2500/3500 Series
2011-2014 GMC Sierra 2500/3500 Series
Equipped with Allison® A1000 Automatic Transmission (RPO MW7)
Condition/Concern
Some customers may comment on a bump feeling and/or a clunk noise when shifting from Drive to Reverse. Some
customers may also comment about harsh shifts into Reverse.
Recommendation/Instructions
A revised calibration has been developed to address this concern. Update the transmission control module (TCM).
To obtain this calibration, contact Techline (TCSC) at 1-800-828-6860 (English) or 1-800-503-3222 (French).
Techline will reconfigure the vehicle to make this calibration the default calibration for this vehicle.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
2810175
Transmission Control Module Reprogramming with SPS
Use Published
Labor
Operation Time

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