This informational bulletin provides information for technicians during diagnosis for DTC U0420.
Chevrolet technical service bulletin 17NA190 for 2016-2018 Chevrolet Malibu and 2017-2018 Buick Lacrosse.
- Bulletin number
- 17NA190
- Component
- Power train: automatic transmission: control module (TCM/PCM/tecm)
- Summary
- This informational bulletin provides information for technicians during diagnosis for DTC U0420.
Owners of these vehicles have filed 488 complaints in the transmission category.
Vehicles covered
- Chevrolet Malibu 2016-2018 201620172018
- Buick Lacrosse 2017-2018 20172018
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