Radio and/or HVAC Systems Change While Driving (Reprogram Body Control Module) (03-08-44-002A)

Publication date: 2003-07-22
Reference number: 03-08-44-002A
Supersedes refnos: 03-08-44-002

Radio and/or HVAC Systems Change While Driving (Reprogram Body Control Module)

TECHNICAL SERVICE BULLETIN

Reference Number(s): 03-08-44-002A, Date of Issue: July 22, 2003

Affected Model(s):	2002 Chevrolet TrailBlazer, TrailBlazer EXT; 2002 GMC Envoy, Envoy XL; 2002 Oldsmobile Bravada
Supercedes:	This bulletin is being revised to correctly state the module that requires reprogramming in the Correction section. Please discard Corporate Bulletin Number 03-08-44-002 (Section 08 - Body and Accessories).

Condition

Some customers may comment that the radio and HVAC settings change while driving down the road. However, the seat does not move.

Cause

Due to the position of the memory buttons on the driver's door pad, a customer may inadvertently depress a memory button.

Correction

A new software package has been developed. The new software will not allow the radio and HVAC settings to change when the transmission shift lever is in any gear other than Park.

Reprogram the Body Control Module using the normal SPS reprogramming procedure (TIS version 1.0 released January 2003, or newer).

Warranty Information

For vehicles repaired under warranty, use:

Warranty Information

Labor Operation	Description	Labor Time
N4808	Module, Body Control - Reprogram	0.4 hr