TrailBlazer 4WD L6-4.2L VIN S (2002)
Instrument Panel Control Module: Customer Interest
Instrument Panel - Erratic Indicators/Gauges/Pointers
File In Section: 08 - Body and Accessories
Bulletin No.: 01-08-49-006
Date: May, 2001
TECHNICAL
Subject:
Erratic Instrument Panel Indicators/Gauges (Needles/Pointers) When Vehicle Ignition is Switched On (Reprogram Instrument Panel Cluster Software)
Models:
2002 Chevrolet and GMC S/T Utility Models (New Style)
2002 Oldsmobile Bravada (New Style)
Condition
Some customers may comment on erratic instrument panel gauge behavior. Any of the six gauges can read much higher than normal or may not return to
the minimum scale position with the key off. An example would be the speedometer displaying 30 km/h (20 mph) when the vehicle is not moving. This
condition will correct itself after several ignition cycles and, as a result, may not exist when the vehicle reaches the dealership.
Correction
Open the driver's door and inspect the top right corner of the vehicle certification label for a date. If this date is 06/01 or later, the instrument panel
cluster (IPC) software is correct.
An PC software change is available to address this issue on vehicles produced prior to 06/01. The software update is available on Techline starting April
14, 2001 on the TIS 2000 version TIS 4.5/2001 data update or later.
To update the software, perform normal SPS reprogramming of the IPC using the Tech 2 and the Techline terminal.
Warranty Information
For vehicles repaired under warranty, use the table shown.
DISCLAIMER
