Gauges are all off

tremmert · 11-17-2003, 06:54 PM

I have a 2002 Trailblazer... Every now and then, all the gauges seem to get messed up. All of them will read high. Ex. the speed gauge reads about 10mph over the speed I am doing, and same thing for the RPM and oil pressure.. It will do this for a while then fix itself. I havent noticed any patterns or driving patterns that seem to trigger the problem. Any ideas?

Thanks

99ssconv · 11-20-2003, 10:36 PM

i believe there is a reprogram for the IPC to fix this, possibly a campaign.

tremmert · 11-22-2003, 04:36 AM

Not too sure what that means, could you point me in the right direction? Should I just take it to the dealership or is there something I should specifically ask them to fix?

Thanks

tooltimetech · 11-22-2003, 10:30 PM

Yes, you would need to take it to a dealer to have the IPC reprogrammed, reprogramming just updating the software inside a module kind of like updating software in you PC.

jfletch · 05-22-2004, 01:13 PM

Print this and take it with you.

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

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