Technical Service Bulletin 20NA185 — 2015 GMC SIERRA 2500
EQUIPMENT
Bulletin Details
| TSB ID | 20NA185 |
| Manufacturer | |
| Vehicle | 2015 GMC SIERRA 2500 |
| Component | EQUIPMENT |
| Communication Date |
Bulletin Summary
This technical procedure provides a procedure to replace the front oil crank seal on remanufactured engines only, if found the cause of the customers concern.
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.