Technical Service Bulletin 20NA161 — 2019 GMC SIERRA 2500
SERVICE BRAKES
Bulletin Details
| TSB ID | 20NA161 |
| Manufacturer | |
| Vehicle | 2019 GMC SIERRA 2500 |
| Component | SERVICE BRAKES |
| Communication Date |
Bulletin Summary
This informational bulletin advises the technician to check for a possible stuck oil pressure relief valve.
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.