Service Bulletin #: 04-08-44-023A
Date: n/a
Subject: Various Radio/CD Player Concerns (Replace Radio)
Model(s): 2005 Chevrolet Corvette with CD Player MP3 Radio (RPO US8) or CD Changer MP3 Radio (RPO US9)
This bulletin is being revised to provide the correction information for Advanced Service Information Bulletin Number 04-08-44-023. Please discard Corporate Bulletin Number 04-08-44-023 (Section 8 -- Body and Accessories).
Condition
Some customers may comment about one or more of the following conditions:
• No audio after ignition cycle.
• Radio presets change and audio is lost after 2-3 seconds.
• Radio always returns to FM1 after CD is ejected instead of previous selected band.
• CD will not play above a certain track number.
• CD changer reads "CD Full" when it is not.
• CD eject button sticks. Refer to Corporate Bulletin Number 04-08-44-022.
Some of these conditions may be intermittent and reset after the ignition is cycled.
Cause
These conditions may be caused by a software anomaly in the radio.
Correction
Important: The new radio must be set up for the option configuration of the vehicle. If the radio setup is not performed, the digital radio receiver, vehicle communication interface module (VCIM), disc player and video display, and the steering wheel controls may not work properly. The radio may display a calibrate message on the display.
Replace the radio with an exchange unit.
Parts Information
U.S. Dealers
Radio exchange units can be obtained from Specmo Enterprises in Madison Heights, Michigan. You can contact Specmo at (248)307-2570 or (800)545-7911. Specmo Enterprises is the only Authorized Electronic Service Center that stocks these exchange radios.
Canadian Dealers
Radio exchange units to be obtained from an authorized ACDelco Radio Centre.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.
© Copyright General Motors Corporation. All Rights Reserved
Article ID: 339
Created: July 18, 2014
Last Updated: July 18, 2014
Author: Rob Loszewski
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article.php?id=339