CHEVROLET, GMC
21NA214
Manufacturer communications
- Publication date
- 2022-01-27
- Received by NHTSA
- 2022-06-21
- NHTSA record numbers
- 10214212
Manufacturer summary
Original wording in English
This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp Illuminated, Harsh or Delayed Transmission Shifts Including Slip, Surge, Shudder, Noise, Whine, Growl, Shake and/or Vibration, DTCs P2002, P2463, P2459, P144E, P0421, P0422, P0106 and/or P20EE Set Current or in Recent History.
Reported code forms
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| Make | Model | Model year |
|---|---|---|
| Chevrolet | SILVERADO 2500 | 2020 |
| Chevrolet | SILVERADO 3500 | 2020 |
| GMC | SIERRA 2500 | 2020 |
| GMC | SIERRA 3500 | 2020 |