Service Update
Chevrolet technical service bulletin N222372591-01 for 2021-2022 Chevrolet Trailblazer and 2020-2022 Buick Encore GX.
- Bulletin number
- N222372591-01
- Component
- Engine and engine cooling
- Summary
- Service Update. Certain vehicles may have a condition in which ice or sludge can accumulate in the Charge Air Cooler (CAC) or Closed Crankcase Ventilation (CCV) system when driving in extremely cold weather conditions (-18°C (0°F) or less). Dealers will reprogram the Engine Control Module.
Owners of these vehicles have filed 103 complaints in the engine category.
Vehicles covered
- Chevrolet Trailblazer 2021-2022 20212022
- Buick Encore GX 2020-2022 202020212022
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