Technical Service Bulletin 20-NA-203 — 2018 CHEVROLET SILVERADO 1500
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 20-NA-203 |
| Manufacturer | |
| Vehicle | 2018 CHEVROLET SILVERADO 1500 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
This informational bulletin explains how the regen works for the DEF system and how it works at different levels.
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.