Cadillac Escalade 1999–2005 — technical service bulletin
Bulletin 3121 · NHTSA communication 10010056 · issued Jan 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999–2005
model years
57
vehicle entries
Official summary
Exhaust vibration resonance or moan. (2004-2005 gmc denali) *sc
Vehicles covered
- 1999 Cadillac Escalade
- 2000 Cadillac Escalade
- 2001 Cadillac Escalade
- 2002 Cadillac Escalade
- 2003 Cadillac Escalade
- 2004 Cadillac Escalade
- 2005 Cadillac Escalade
- 1999 Chevrolet Avalanche
- 2000 Chevrolet Avalanche
- 2001 Chevrolet Avalanche
- 2002 Chevrolet Avalanche
- 2003 Chevrolet Avalanche
- 2004 Chevrolet Avalanche
- 2005 Chevrolet Avalanche
- 1999 Chevrolet Silverado
- 2000 Chevrolet Silverado
- 2001 Chevrolet Silverado
- 2002 Chevrolet Silverado
- 2003 Chevrolet Silverado
- 2004 Chevrolet Silverado
- 2005 Chevrolet Silverado
- 1999 Chevrolet Suburban
- 2000 Chevrolet Suburban
- 2001 Chevrolet Suburban
- 2002 Chevrolet Suburban
- 2003 Chevrolet Suburban
- 2004 Chevrolet Suburban
- 2005 Chevrolet Suburban
- 1999 Chevrolet Tahoe
- 2000 Chevrolet Tahoe
- 2001 Chevrolet Tahoe
- 2002 Chevrolet Tahoe
- 2003 Chevrolet Tahoe
- 2004 Chevrolet Tahoe
- 2005 Chevrolet Tahoe
- 1999 GMC Denali
- 2000 GMC Denali
- 2001 GMC Denali
- 2002 GMC Denali
- 2003 GMC Denali
- 1999 GMC Sierra
- 2000 GMC Sierra
- 2001 GMC Sierra
- 2002 GMC Sierra
- 2003 GMC Sierra
- 2004 GMC Sierra
- 2005 GMC Sierra
- 1999 GMC Yukon
- 2000 GMC Yukon
- 2001 GMC Yukon
- 2002 GMC Yukon
- 2003 GMC Yukon
- 2004 GMC Yukon
- 2005 GMC Yukon
- 2003 Hummer H2
- 2004 Hummer H2
- 2005 Hummer H2
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.