Technical Service Bulletin 21-NA-214 — 2020 CHEVROLET SILVERADO 2500
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | 21-NA-214 |
| Manufacturer | |
| Vehicle | 2020 CHEVROLET SILVERADO 2500 |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp being illuminated. They may also comment on multiple transmission issues including harsh or delayed shifts, slip, surge, shudder, noise, whine, growl, shake and/or vibration. As well as the exhaust brake not working or that they do not feel it. Technicians may find DTCs P2002, P2463, P2459, P144E, P0421, P0422, P0106 P20EE, P129F, P16F3, P20FF, P226D, P249D, P249E, P11CC and / or P11D5.
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.