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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.