Chevrolet Avalanche 1999–2006 — technical service bulletin
Bulletin 3259C · NHTSA communication 10005514 · issued Mar 2, 2004
Technical service bulletin
communication type
Power Train
component
1999–2006
model years
54
vehicle entries
Official summary
4l80e, 4l85e whine noise in first and second gear. *tt
Vehicles covered
- 2002 Chevrolet Avalanche
- 2003 Chevrolet Avalanche
- 2004 Chevrolet Avalanche
- 2005 Chevrolet Avalanche
- 2006 Chevrolet Avalanche 1500
- 1999 Chevrolet Express
- 2000 Chevrolet Express
- 2001 Chevrolet Express
- 2002 Chevrolet Express
- 2003 Chevrolet Express
- 2004 Chevrolet Express
- 2005 Chevrolet Express
- 2006 Chevrolet Express
- 1999 Chevrolet Silverado
- 2000 Chevrolet Silverado
- 2001 Chevrolet Silverado
- 2002 Chevrolet Silverado
- 2003 Chevrolet Silverado
- 2004 Chevrolet Silverado
- 2005 Chevrolet Silverado
- 2006 Chevrolet Silverado
- 1999 Chevrolet Suburban
- 2000 Chevrolet Suburban
- 2001 Chevrolet Suburban
- 2002 Chevrolet Suburban
- 2003 Chevrolet Suburban
- 2004 Chevrolet Suburban
- 2005 Chevrolet Suburban
- 2006 Chevrolet Suburban 1500
- 2006 Chevrolet Suburban 2500
- 1999 GMC Savana
- 2000 GMC Savana
- 2001 GMC Savana
- 2002 GMC Savana
- 2003 GMC Savana
- 2004 GMC Savana
- 2006 GMC Savana
- 1999 GMC Sierra
- 2000 GMC Sierra
- 2001 GMC Sierra
- 2002 GMC Sierra
- 2003 GMC Sierra
- 2004 GMC Sierra
- 2005 GMC Sierra
- 2006 GMC Sierra 1500
- 2006 GMC Sierra 2500
- 2006 GMC Sierra 3500
- 1999 GMC Yukon
- 2000 GMC Yukon
- 2001 GMC Yukon
- 2002 GMC Yukon
- 2003 GMC Yukon
- 2004 GMC Yukon
- 2006 GMC Yukon
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.