Campaign - A/T Fluid Pump Replacement
SERVICE UPDATEBulletin No.: 10076A
Date: December 14, 2010
Subject: 10076A - Service Update for Inventory Vehicles Only - Slight Hesitation, Jerk, at Engine Restart in Auto Start Mode - Expires December 31, 2011
Models:
2010 Cadillac Escalade
2010 Chevrolet Tahoe
2010 GMC Yukon
Two-Mode Hybrid
Supercede:
The expiration date of this bulletin has been extended to December 31, 2011. Please discard all copies of bulletin 10076, issued April 2010.
Purpose
This bulletin provides a service procedure to inspect and, if necessary, replace the auxiliary transmission fluid pump on certain 2010 model year Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon Two-Mode Hybrid vehicles. The pump in these vehicles may develop an internal short. If this happens, the customer may notice a slight hesitation or jerk as the engine restarts in the Auto Start Mode. The Service Engine Soon light may also illuminate. If the Service Engine Soon light illuminates, the Auto Stop feature will be disabled, reducing the vehicle's fuel economy.
This service procedure should be completed on involved vehicles currently in dealership inventory as soon as possible but no later than December 31, 2011, at which time this bulletin will expire.
Vehicles Involved
All involved vehicles are identified by VIN in the Global Warranty Management System - Investigate Vehicle History (GMVIS2) Application. Dealership technicians should always check this site to confirm vehicle involvement prior to beginning any required inspections and/or repairs. It is important to routinely use this tool to verify eligibility because not all similar vehicles may be involved regardless of description or option content.
Additionally, a list of involved vehicles is available on the "Service Update Bulletin Information" link under the "Service" tab in GM GlobalConnect (US) or attached to the GlobalConnect message (Canada) used to release the original bulletin.
Parts Information
Parts required to complete this campaign are to be obtained from General Motors Customer Care and Aftersales (GMCC&A). Please refer to your "involved vehicles listing" prior to ordering parts. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation, parts should be ordered on a CSO = Customer Special Order.
Service Procedure
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.
2. Locate the auxiliary transmission fluid pump (1).
3. Read the date code (2) on the auxiliary transmission fluid pump.
- If the first five digits of the date code are 015 10, 016 10 or 018 10, remove and replace the auxiliary transmission fluid pump. Proceed to Step 4.
- If the first five digits of the date code are NOT 015 10, 016 10 or 018 10, lower the vehicle. No further action is required.
4. Remove the auxiliary transmission fluid pump. Refer to Auxiliary Fluid Pump and Gasket Replacement in SI.
5. Install a new auxiliary transmission fluid pump. Refer to Auxiliary Fluid Pump and Gasket Replacement in SI.
Warranty Transaction Information
Submit a transaction using the table above.
Disclaimer