Chevrolet Blazer 1996–1998 — technical service bulletin
Bulletin 990602012B · NHTSA communication 611277 · issued Feb 1, 2000
Technical service bulletin
communication type
Engine and Engine Cooling
component
1996–1998
model years
17
vehicle entries
Official summary
Some customers may comment that the heater is inoperative, blows cold air, engine may exhibit an overheat condition or the coolant reservoir has rust in it. *tt
Vehicles covered
- 1996 Chevrolet Blazer
- 1997 Chevrolet Blazer
- 1998 Chevrolet Blazer
- 1996 Chevrolet S10
- 1997 Chevrolet S10
- 1998 Chevrolet S10
- 1996 Chevrolet Sonoma
- 1998 GMC Envoy
- 1996 GMC Jimmy
- 1997 GMC Jimmy
- 1998 GMC Jimmy
- 1996 GMC Sonoma
- 1997 GMC Sonoma
- 1998 GMC Sonoma
- 1996 Oldsmobile Bravada
- 1997 Oldsmobile Bravada
- 1998 Oldsmobile Bravada
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.