| Subject: | OnStar® System Inoperative, OnStar® System Status Light is Red, Radio Locked in Phone Mode or DTC B1000 (Update Early Release Generation 5 OnStar® System Software) |
| Models: | 2003 Buick LeSabre, Rendezvous |
| 2003 Cadillac Escalade, Escalade EXT |
| 2003 Chevrolet Avalanche, Cavalier, Express, Silverado, Suburban, Tahoe, TrailBlazer, TrailBlazer EXT, Venture |
| 2003 GMC Denali XL, Envoy, Envoy XL, Savana, Sierra, Yukon, Yukon XL |
| 2003 Oldsmobile Aurora, Bravada, Silhouette |
| 2003 Pontiac Aztek, Bonneville, Montana, Sunfire |
| with OnStar® Communication System (RPO UE1) |
This bulletin is being canceled. Please discard Corporate Bulletin Number 04-08-46-004A (Section 08 - Body and Accessories).
Refer to Corporate Bulletin Number 05-08-46-006N -- Information on Upgrading Certain OnStar Analog/Digital-Ready Systems to OnStar Generation 6 Digital-Capable System for vehicles that exhibit the above condition.
