Technical Service Bulletin N21234803001 — 2016 CHEVROLET CITY EXPRESS
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | N21234803001 |
| Manufacturer | |
| Vehicle | 2016 CHEVROLET CITY EXPRESS |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
Engine Control Module Cannot Detect Catalyst Revised Service Procedure
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.