Subject: | Door Courtesy Light Remains On |
Models: | 2006 Cadillac Escalade, Escalade ESV, Escalade EXT |
| 2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe |
| 2006 GMC Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some customers may comment that the passenger door courtesy light remains on after all other interior lights have gone off. Root cause is the PDM missed the class 2 message to turn off courtesy lamp.
Recommendation/Instructions:
To correct this concern reprogram the DDM (Drivers Door Module) with an updated service calibration. This new service calibration was released with TIS satellite data update version 1.5 available January 23, 2006. As always, make sure your Tech 2®
is updated with the latest software version.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.