Cadillac Escalade 1998–2002 — technical service bulletin
Bulletin 3389 · NHTSA communication 10016707 · issued Sep 28, 2005
Technical service bulletin
communication type
Power Train
component
1998–2002
model years
32
vehicle entries
Official summary
Four wheel drive inoperative and the 4wd service light will illuminate. Diagnosis may reveal that the atc fuse could be open, possible dtc c0308, or various u codes may be set. The encoder motor may also be shorted or the tccm may be damaged. *tt
Vehicles covered
- 1999 Cadillac Escalade
- 2000 Cadillac Escalade
- 1998 Chevrolet Pickup
- 1999 Chevrolet Pickup
- 1999 Chevrolet Silverado
- 2000 Chevrolet Silverado
- 2001 Chevrolet Silverado
- 2002 Chevrolet Silverado
- 1998 Chevrolet Suburban
- 1999 Chevrolet Suburban
- 2000 Chevrolet Suburban
- 2001 Chevrolet Suburban
- 2002 Chevrolet Suburban
- 1998 Chevrolet Tahoe
- 1999 Chevrolet Tahoe
- 2000 Chevrolet Tahoe
- 2001 Chevrolet Tahoe
- 2002 Chevrolet Tahoe
- 2000 GMC Denali
- 1998 GMC Pickup
- 1999 GMC Pickup
- 1998 GMC Sierra
- 1999 GMC Sierra
- 2000 GMC Sierra
- 2001 GMC Sierra
- 1998 GMC Suburban
- 1999 GMC Suburban
- 1998 GMC Yukon
- 1999 GMC Yukon
- 2000 GMC Yukon
- 2001 GMC Yukon
- 2002 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.