GM Service Manual Online
For 1990-2009 cars only

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)

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
2004 Pontiac Grand Prix
2003 HUMMER H2
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.