Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Bulletin No.: 04-08-44-020C
Date: November 09, 2005
with CD Player Radio (RPOs UB0 or UB1)
This bulletin is being revised to add 2004 model year. Also, additional conditions and correction information have been provided. Please discard Advance SI Resolution Bulletin Number 04-08-44-020B (Section 08 - Body and Accessories).
Some customers may comment on one of the following conditions:
A software anomaly within the radio has been found.
If the customer comments that the CD does not eject or the CD is stuck in the CD player, or the radio will not accept the CD, prior to programming the radio, perform the following steps.
Reprogram the radio with an updated software calibration. This new service calibration was released with TIS satellite data update version 10.0 available October 3, 2005. As always, make sure your Tech 2(R) is updated with the latest software version. Prior to entering TIS2000, enter the VIN into GMVIS to obtain the RPO codes of the radio and speaker configuration for the vehicle. This will allow for the correct calibration selection. Selecting the incorrect calibration for the vehicle configuration can damage the radio and lead to unnecessary delays in repair time. Once programming is completed, wait at least one minute after key-off to allow the radio to accept the new calibration.
If the amplifier appears on the class 2 message monitor screen, then the calibration for a class 2 amplifier needs to be selected. If the amplifier does not appear on the screen, then the calibration for a non-class 2 amplifier needs to be selected. Selecting the wrong calibration will result in reduced or no radio volume.
Also, please 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 as the labels may lift off in the player.