Buick Century 2003–2005 — technical service bulletin
Bulletin 050846006A · NHTSA communication 10015018 · issued Sep 1, 2005
Technical service bulletin
communication type
Equipment
component
2003–2005
model years
60
vehicle entries
Official summary
Information on upgrading certain onstar generation 5 analog/digital-ready systems to onstar generation 6 dual-mode (analog/digital). *tt
Vehicles covered
- 2004 Buick Century
- 2005 Buick Century
- 2003 Buick Lesabre
- 2004 Buick Lesabre
- 2004 Buick Rainier
- 2004 Buick Regal
- 2003 Buick Rendezvous
- 2004 Buick Rendezvous
- 2003 Cadillac CTS
- 2004 Cadillac CTS
- 2005 Cadillac CTS
- 2003 Cadillac Deville
- 2004 Cadillac Deville
- 2003 Cadillac Escalade
- 2004 Cadillac Escalade
- 2003 Cadillac Seville
- 2004 Cadillac Seville
- 2005 Cadillac SRX
- 2005 Cadillac STS
- 2003 Chevrolet Avalanche
- 2004 Chevrolet Avalanche
- 2003 Chevrolet Cavalier
- 2004 Chevrolet Cavalier
- 2005 Chevrolet Cavalier
- 2005 Chevrolet Cobalt
- 2004 Chevrolet Colorado
- 2003 Chevrolet Express
- 2004 Chevrolet Express
- 2004 Chevrolet Impala
- 2004 Chevrolet Malibu
- 2005 Chevrolet Malibu
- 2004 Chevrolet Malibu Maxx
- 2005 Chevrolet Malibu Maxx
- 2004 Chevrolet Monte Carlo
- 2003 Chevrolet Silverado
- 2004 Chevrolet Silverado
- 2003 Chevrolet Suburban
- 2004 Chevrolet Suburban
- 2003 Chevrolet Tahoe
- 2004 Chevrolet Tahoe
- 2004 Chevrolet Trailblazer
- 2003 Chevrolet Venture
- 2004 Chevrolet Venture
- 2005 Chevrolet Venture
- 2004 GMC Canyon
- 2004 GMC Envoy
- 2003 GMC Savana
- 2004 GMC Savana
- 2003 GMC Sierra
- 2004 GMC Sierra
- 2003 GMC Yukon
- 2004 GMC Yukon
- 2003 Hummer H2
- 2004 Hummer H2
- 2004 Oldsmobile Bravada
- 2003 Oldsmobile Silhouette
- 2004 Oldsmobile Silhouette
- 2003 Pontiac Aztek
- 2004 Pontiac Aztek
- 2003 Pontiac Bonneville
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.