Technical Service Bulletin 18NA331 — 2013 BUICK ENCORE
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | 18NA331 |
| Manufacturer | |
| Vehicle | 2013 BUICK ENCORE |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
This bulletin provides a procedure to reprogram the ECM to correct a condition of MIL On, DTC P0420 Set.
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.