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04' Tahoe radio lost time

TonyMazz

By TonyMazz
in Ask A GM Technician

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TonyMazz Enthusiast

TonyMazz

Posted
Posted

I know this will sound weird, but my clock display reverted back to 12:40 for no reason today.

 

I have a AM/FM/CD/Cassette radio and the power was not disconnected at all.

 

I shut the car off went in to shop, came out and the actual time was 1:05 on my watch (the real time) and started my tahoe up and clock said 12:40. I reset the time and things are fine.

 

This is the 2nd time it's happened....

 

Any ideas ?

 

This car has 2200 miles on it and I had circuit city install a sirrius sportster seperate radio reciever and I dial my radio to 89.1 FM to pick it up....

 

It's just two weird.... :D

TonyMazz Enthusiast

TonyMazz

Posted
  • Author
Posted

:crackup: Just in case anyone is interested...I found the answer....

 

This information pertains to the following 2004 vehicles:

- Chevrolet Colorado and GMC Canyon

- Chevrolet Express Van and GMC Savana Van

- Chevrolet SSR

- Chevrolet Blazer and GMC Jimmy (old body)

- Chevrolet, GMC and Cadillac full size Trucks and Utilities

- Chevrolet Trailblazer, GMC Envoy and Buick Rainier

- Hummer H2

 

Vehicles listed above built in March and April with radio RPO UC6, UB1, or UB0 may have a concern with no audio and no radio display, or the radio clock is resetting.

 

To resolve the concern, perform a radio set-up procedure with the Tech 2.

 

TIP: Use software 24.003, released May 3, 2004, or newer.

 

Perform the following steps:

Select 2004 model year

Select Light Duty Truck

Select the vehicle make

Select Body

Select Body Series

Select Uplevel Radio

Select Special Functions

Select Radio Setup

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