Subject regarding service engine soon light on, delayed transmission downshift and/or excessive fan noise
Chevrolet technical service bulletin 131201 for 2002 Chevrolet Trailblazer, 2002 GMC Envoy and 2002 Oldsmobile Bravada.
- Bulletin number
- 131201
- Component
- Power train
- Summary
- Subject regarding service engine soon light on, delayed transmission downshift and/or excessive fan noise. Tt
Owners of these vehicles have filed 446 complaints in the transmission category.
Vehicles covered
- Chevrolet Trailblazer 2002 2002
- GMC Envoy 2002 2002
- Oldsmobile Bravada 2002 2002
VIN decoder
See the problems and recalls for an exact car
Buying a used Chevrolet Trailblazer?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history