Door Locks, Power Windows, Door Courtesy Lamps, Heated/Cooled Seat Indicators Inoperative (Reprogram Driver and Passenger Door Switches)
| Subject: | Door Locks, Power Windows, Door Courtesy Lamps, Heated/Cooled Seat Indicators Inoperative (Reprogram Driver & Passenger Door Switches) |
| Models: | 2006-2007 Buick Lucerne |
| 2006-2007 Cadillac DTS |
| 2007 Cadillac Escalade |
| 2007 Chevrolet Tahoe |
| 2007 GMC Yukon |
This bulletin is being revised to include the Lucerne and DTS models. Please discard Corporate Bulletin Number 06-08-64-014 (Section 08 -- Body and Accessories).
Condition
Some customers may comment on any of the following conditions:
| • | Front Door Locks Inoperative |
| • | Passenger Power Window Inoperative |
| • | Door Courtesy Lamps Inoperative |
| • | Heated/Cooled Seat Indicators Inoperative |
| • | Or any other driver or passenger door function issue that can be resolved by an ignition cycle. |
Customers may also comment that a vehicle ignition cycle typically cures the symptoms.
Cause
The cause of these conditions may be due to a software anomaly within the driver and passenger door switches.
Correction
DO NOT REPLACE THE DRIVER DOOR SWITCH OR PASSENGER DOOR SWITCH.
Using SPS and Pass-Thru method, reprogram the driver door switch (DDS) and passenger door switch (PDS) with updated software calibrations. These new service calibrations were released with TIS satellite data update version 2.75 / 2006. As always, make sure your Tech 2® is updated with the latest software version.
After the reprogramming is completed, check and clear all DTCs that may have set as a result of the programming process.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
N8520 | Module and/or Switch, Door - Reprogram with SPS | 0.5 hr* |
*This includes time to reprogram both switches and check/clear DTCs.
