| Subject: | Information on Reprogramming Replacement Door Modules/Switches |
| Models: | 2006-2009 Buick Lucerne |
| 2007-2009 Cadillac Escalade, Escalade ESV, Escalade EXT, SRX |
| 2007-2009 Chevrolet Avalanche, Silverado, Suburban, Tahoe |
| 2007-2009 GMC Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL |
A large number of door modules are being returned through the Warranty Parts Center (WPC). The returned part analyses indicate that the door modules/switches are missing their respective software calibrations.
Important: For step-by-step programming instructions, please refer to the Techline Information System (TIS) terminal. Select the appropriate controller - Driver Door Module (DDM) or Passenger Door Module (PDM).
Any time a new door module is replaced, the module will require the updated software and/or calibration files using the TIS Service Programming System (SPS) application. Refer to Door Control Module Programming and Setup in SI.
The information in this bulletin is being provided to help reduce the amount of door modules being returned. Check the wiring at the respective door module, the door "doc-n-loc" electrical connectors, software calibrations, and the specific
hardware or wiring associated with the customer complaint (e.g., window regulator, outside mirror, door handle, etc.) prior to replacing any door module.
