Technical Service Bulletin 23-NA-021 — 2021 GMC TERRAIN
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 23-NA-021 |
| Manufacturer | |
| Vehicle | 2021 GMC TERRAIN |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.