Help please!! Annoying Radio Problem

[rwthompson67]

I bought the truck new 9 months ago. Last month the radio started acting up. The time display on the radio (6 disk in-dash, AM/FM/XM) almost always resets to 12:00 whenever I start the truck. I say "almost" because it is only about 80-90% of the time. I can't figure it out and it's really bugging me.

 

Any help would be appreciated.

 

Thanks

 

Rick T.

[GM-Tech]

Sounds like a momentary loss of power to the radio. I assume the vehicle starts okay? Not that this is a 100% guarantee that there's not a battery or cable connection problem. I've seen some pretty bizarre behavior with a battery cable that wasn't quite tight enough. They may start okay, but weird electronics problems.

 

That'd be my first step. Next would be to monitor battery power right at the radio when this occurs with a Fluke (or other meter) in its min/max mode to see if there was any power dropout.

[TonyMazz]

Or maybe from the Techlink 04/2005

 

This information applies to 2005 Buick Rainier, 2005 Cadillac Escalade, Escalade ESV, Escalade EXT, 2005 Chevrolet Avalanche, Express, Silverado, Suburban, Tahoe, TrailBlazer, TrailBlazer EXT, 2005 GMC Envoy, Envoy XL, Envoy XUV, Savana, Sierra, Yukon, Yukon XL, Denali, 2005 HUMMER H2 with CD Player Radio (RPOs UB0 or UB1).

 

Some customers may comment about one of the following conditions:

- Long CD load-to-play time

- CD ejects with an error message of CHECK CD

- CD does not return to previous track after an ignition cycle

- The clock resets to 12:00.

- CD stuck in player, CD won’t play, or won’t eject without any indication of clicking noises and/or mechanical operation.

 

DO NOT replace the radio for these conditions.

 

A software anomaly within the radio has been found. Reprogram the radio with an updated software calibration. This new service calibration was released with TIS satellite data update version 2.0 available February 7, 2005.

 

TIP: A unique labor operation number R0125 covers this Radio -- Reprogram (0.4 hr.). This number will not be published in the Labor Time Guide.

 

TIP: Be sure your Tech 2 is updated with the latest software version.

 

TIP: Advise the customer that home-burned CDs must be burned with a "closed session" or the formatting will be incomplete and the player will not read the CD. CDs should not have adhesive paper labels affixed to them, because the labels may lift off in the player.

 

- Thanks to Doug Daugherty

 

[Sierra 05]

I bought the truck new 9 months ago.  Last month the radio started acting up.  The time display on the radio (6 disk in-dash, AM/FM/XM) almost always resets to 12:00 whenever I start the truck.  I say "almost" because it is only about 80-90% of the time.  I can't figure it out and it's really bugging me. 

 

Any help would be appreciated.

 

Thanks

 

Rick T.

 

<{POST_SNAPBACK}>

 

 

 

 

Wife`s `02 Trailblazer did the same thing!!!!!!!! Pissed her off, cause the radio would POP!. Dealer CND it. Traded it in, as i was removing the K&N filter, I noticed the battery acid down the inside fender. HA ! Battery leaked. Go figure, an ACDelco positive terminal!!!!!!!!!!!! Who would have thunk that????????!!!!!!!!!!!!!