Chevrolet Astro 1998–2008 — technical service bulletin
Bulletin 3521 · NHTSA communication 10016711 · issued Sep 28, 2005
Technical service bulletin
communication type
Service Brakes, Air
component
1998–2008
model years
48
vehicle entries
Official summary
Anti-lock braking system (abs) light on speedometer may be erratic. Diagnostic trouble code (dtc) c0055 c0235 c0236 or c0237 stored in the ebcm. *tt 1998-2008 all chevrolet, gmc, buick, and oldsmobile mid-sized trucks and utilities. 1998-2008 all chevrolet, gmc, and cadillac full sized trucks and utilities. *kb updated on 09/20/07. *nj
Vehicles covered
- 1998 Chevrolet Astro
- 1999 Chevrolet Astro
- 2000 Chevrolet Astro
- 2001 Chevrolet Astro
- 2002 Chevrolet Astro
- 2003 Chevrolet Astro
- 2004 Chevrolet Astro
- 2005 Chevrolet Astro
- 2004 Chevrolet Aveo
- 2005 Chevrolet Aveo
- 1998 Chevrolet Express
- 1999 Chevrolet Express
- 2000 Chevrolet Express
- 2001 Chevrolet Express
- 2002 Chevrolet Express
- 2003 Chevrolet Express
- 2004 Chevrolet Express
- 2005 Chevrolet Express
- 2006 Chevrolet Express
- 2007 Chevrolet Express 1500
- 2007 Chevrolet Express 2500
- 2007 Chevrolet Express 3500
- 1998 GMC Safari
- 1999 GMC Safari
- 2000 GMC Safari
- 2001 GMC Safari
- 2002 GMC Safari
- 2003 GMC Safari
- 2004 GMC Safari
- 2005 GMC Safari
- 1998 GMC Savana
- 1999 GMC Savana
- 2000 GMC Savana
- 2001 GMC Savana
- 2002 GMC Savana
- 2003 GMC Savana
- 2004 GMC Savana
- 2005 GMC Savana
- 2006 GMC Savana
- 2007 GMC Savana 1500
- 2007 GMC Savana 2500
- 2007 GMC Savana 3500
- 2003 Hummer H2
- 2004 Hummer H2
- 2005 Hummer H2
- 2006 Hummer H2
- 2007 Hummer H2
- 2008 Hummer H2 Sut
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.