Technical Service Bulletin 21-NA-149 — 2021 GMC YUKON
ENGINE
Bulletin Details
| TSB ID | 21-NA-149 |
| Manufacturer | |
| Vehicle | 2021 GMC YUKON |
| Component | ENGINE |
| Communication Date |
Bulletin Summary
This service bulletin provides repair information for Engine Wire Harness Chafing to correct customer concerns of IPC Gauges Sweep, IPC Warning Message, SES/Check Engine/MIL, No Start/ No Crank, Runs Rough, Stalls, Reduced Engine Power, Various DTCs.
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.