Technical Service Bulletin 25-NA-150 — 2025 GMC SIERRA 3500
ENGINE
Bulletin Details
| TSB ID | 25-NA-150 |
| Manufacturer | |
| Vehicle | 2025 GMC SIERRA 3500 |
| Component | ENGINE |
| Communication Date |
Bulletin Summary
This bulletin provides a procedure to check and replace the oil cooler seals before just replacing the oil cooler, for an oil leak.
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.