Buick Encore 2020–2025 — technical service bulletin
Bulletin PIC6553 · NHTSA communication 11006329 · issued Aug 13, 2024
Technical service bulletin
communication type
Engine
component
2020–2025
model years
15
vehicle entries
Official summary
This Preliminary information communicates the direction to take when a customer complains about a vibration when parking on a steep slope with engine running.
Vehicles covered
- 2025 Buick Encore
- 2020 Buick Encore GX
- 2021 Buick Encore GX
- 2022 Buick Encore GX
- 2023 Buick Encore GX
- 2024 Buick Encore GX
- 2024 Buick Envista
- 2025 Buick Envista
- 2021 Chevrolet Trailblazer
- 2022 Chevrolet Trailblazer
- 2023 Chevrolet Trailblazer
- 2024 Chevrolet Trailblazer
- 2025 Chevrolet Trailblazer
- 2024 Chevrolet Trax
- 2025 Chevrolet Trax
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.