CHEVROLET, GMC
21NA128
Manufacturer communications
- Publication date
- 2021-05-28
- Received by NHTSA
- 2021-07-06
- NHTSA record numbers
- 10198891 · 10199282
Multiple filings of the same bulletin are grouped here; original record numbers remain available.
Manufacturer summary
Original wording in English
This technical bulletin provides repair information to correct a customer concern of MIL Illuminated- ECM Update for P026C, P20EE, or P11D5.
Reported code forms
Check vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chevrolet | SILVERADO 2500 | 2021 |
| Chevrolet | SILVERADO 3500 | 2021 |
| GMC | SIERRA 1500 | 2021 |
| GMC | SIERRA 2500 | 2021 |