| Subject: | Removal of Radio Fuse Before Attempting to Program/Reprogram Modules Using Service Program System (SPS) | 
| Models: | 2005-2007 Buick Terraza | 
 | 2005-2007 Chevrolet Corvette, Uplander | 
 | 2005-2007 Pontiac Montana SV6 | 
 | with CD Player or Changer AM/FM with MP3 Player (RPO US8 or US9) | 
 
This bulletin is being revised to add the 2006 and 2007 models years. Please discard Corporate Bulletin Number 04-08-44-024 (Section 08 - Body and Accessories).
Important: 
|    •  | Failure to remove the radio fuse prior to programming/reprogramming any module using the SPS service procedure may result in an inoperative radio. | 
 
|    •  | DO NOT remove the radio fuse when programming/reprogramming the radio. | 
 
The radio may interrupt Class-2 programming and/or reprogramming of other modules on the buss.
Prior to programming/reprogramming any module using the SPS service procedure, the technician is required to remove the radio fuse. 
2005-2007 Corvette
- Remove the Radio/S-Band/VICS 15-amp fuse from the I/P electrical center (passenger side) prior to SPS reprogramming.
 
- Program/Reprogram the appropriate module that requires service.
 
- Reinstall the radio fuse.
 
2005-2007 Uplander, Terraza, Relay and Montana SV6
- Remove the RADIO AMPLIFIER 20-amp fuse (fuse #4) in the I/P fuse block prior to SPS reprogramming.
 
- Program/Reprogram the appropriate module that requires service.
 
- Reinstall the radio fuse.