Service Update
Chevrolet technical service bulletin N202321920 for 2021 Chevrolet Trailblazer, 2021 GMC Acadia and 2021 Cadillac XT5 and others.
- Bulletin number
- N202321920
- Component
- Engine and engine cooling
- Summary
- Service Update. A small number of vehicles may have a coolant inlet pipe that may present an obstructed threaded hole for the coolant temp sensor which could result in the check engine light coming on or a potential coolant leak. Dealers are to replace the coolant inlet pipe and temperature sensor.
Owners of these vehicles have filed 80 complaints in the engine category.
Vehicles covered
- Chevrolet Trailblazer 2021 2021
- GMC Acadia 2021 2021
- Cadillac XT5 2021 2021
- Cadillac XT4 2021 2021
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