CHEVROLET, GMC
21NA105
Manufacturer communications
- Publication date
- 2021-04-29
- Received by NHTSA
- 2021-05-24
- NHTSA record numbers
- 10194116
Manufacturer summary
Original wording in English
This technical bulletin provides repair information to correct a customer concern of Engine Control Module Calibration for DTC P0171 and P0174 Set.
Reported code forms
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