Technical Service Bulletin 21-NA-027 — 2019 GMC SIERRA 2500
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | 21-NA-027 |
| Manufacturer | |
| Vehicle | 2019 GMC SIERRA 2500 |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
This technical bulletin provides a procedure to install 2 way tape to correct a condition of Trailering Connector Loose Within Rear Bumper.
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.