This informational bulletin explains how to check if the pulley and/or drive chain has any damage caused...
Chevrolet technical service bulletin 20NA120 for 2019-2020 Chevrolet Malibu, 2021 Chevrolet Trailblazer and 2020 Buick Encore.
- Bulletin number
- 20NA120
- Component
- Power train
- Summary
- This informational bulletin explains how to check if the pulley and/or drive chain has any damage caused by low fluid or a code set that causes the transmission to default maxing out pressure.
Owners of these vehicles have filed 175 complaints in the transmission category.
Vehicles covered
- Chevrolet Malibu 2019-2020 20192020
- Chevrolet Trailblazer 2021 2021
- Buick Encore 2020 2020
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