Buick Encore 2018–2023 — technical service bulletin
Bulletin 18-NA-035 · NHTSA communication 10231891 · issued Feb 1, 2023
Technical service bulletin
communication type
Power Train
component
2018–2023
model years
44
vehicle entries
Official summary
This service bulletin provides information on a normal characteristic of a transmission that will not shift into overdrive range during cold ambient temperatures.
Vehicles covered
- 2018 Buick Encore
- 2019 Buick Encore
- 2020 Buick Encore
- 2021 Buick Encore
- 2022 Buick Encore
- 2019 Cadillac XT4
- 2020 Cadillac XT4
- 2021 Cadillac XT4
- 2022 Cadillac XT4
- 2023 Cadillac XT4
- 2020 Cadillac XT5
- 2021 Cadillac XT5
- 2022 Cadillac XT5
- 2023 Cadillac XT5
- 2020 Cadillac XT6
- 2021 Cadillac XT6
- 2022 Cadillac XT6
- 2023 Cadillac XT6
- 2018 Chevrolet Cruze
- 2019 Chevrolet Cruze
- 2018 Chevrolet Equinox
- 2019 Chevrolet Equinox
- 2020 Chevrolet Equinox
- 2021 Chevrolet Equinox
- 2022 Chevrolet Equinox
- 2023 Chevrolet Equinox
- 2018 Chevrolet Malibu
- 2019 Chevrolet Malibu
- 2018 Chevrolet Trax
- 2019 Chevrolet Trax
- 2020 Chevrolet Trax
- 2021 Chevrolet Trax
- 2022 Chevrolet Trax
- 2020 GMC Acadia
- 2021 GMC Acadia
- 2022 GMC Acadia
- 2023 GMC Acadia
- 2018 GMC Terrain
- 2019 GMC Terrain
- 2020 GMC Terrain
- 2021 GMC Terrain
- 2022 GMC Terrain
- 2023 GMC Terrain
- 2022 GMC Terrain NA
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.