Cadillac Escalade 1998–1999 — technical service bulletin
Bulletin 660421002 · NHTSA communication 606576 · issued Apr 1, 1999
Technical service bulletin
communication type
Power Train
component
1998–1999
model years
21
vehicle entries
Official summary
Customer may complain that the 4wd is inoperative. *tt
Vehicles covered
- 1999 Cadillac Escalade
- 1998 Chevrolet C Series
- 1999 Chevrolet C Series
- 1998 Chevrolet Denali
- 1999 Chevrolet Denali
- 1998 Chevrolet K Series
- 1999 Chevrolet K Series
- 1998 Chevrolet Tahoe
- 1999 Chevrolet Tahoe
- 1998 Chevrolet Yukon
- 1999 Chevrolet Yukon
- 1998 GMC C Series
- 1999 GMC C Series
- 1998 GMC Denali
- 1999 GMC Denali
- 1998 GMC K Series
- 1999 GMC K Series
- 1998 GMC Tahoe
- 1999 GMC Tahoe
- 1998 GMC Yukon
- 1999 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.