Technical Service Bulletin PIT6389 — 2025 GMC SIERRA 2500
UNKNOWN OR OTHER
Bulletin Details
| TSB ID | PIT6389 |
| Manufacturer | |
| Vehicle | 2025 GMC SIERRA 2500 |
| Component | UNKNOWN OR OTHER |
| Communication Date |
Bulletin Summary
This Preliminary information communicates that this concern is for assist step lighting is not turning on when entering vehicle or unlocking vehicle using fob. Engineering is investigating.
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.