Technical Service Bulletin 21-NA-147 — 2015 CADILLAC CTS
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 21-NA-147 |
| Manufacturer | |
| Vehicle | 2015 CADILLAC CTS |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
This service bulletin provides a repair procedure to correct a customer concern of Coolant and/or Oil Leak, Malfunction Indicator Lamp (MIL) Illuminatedâ.
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.