Buick Lacrosse 2017–2023 — technical service bulletin
Bulletin PIP5940 · NHTSA communication 10247776 · issued Sep 22, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2023
model years
28
vehicle entries
Official summary
This Preliminary information communicates a change in service procedure for the thermostat on this enigne.
Vehicles covered
- 2017 Buick Lacrosse
- 2018 Buick Lacrosse
- 2019 Buick Lacrosse
- 2018 Buick Regal
- 2019 Buick Regal
- 2020 Buick Regal
- 2017 Cadillac XT5
- 2018 Cadillac XT5
- 2019 Cadillac XT5
- 2020 Cadillac XT5
- 2021 Cadillac XT5
- 2022 Cadillac XT5
- 2023 Cadillac XT5
- 2020 Cadillac XT6
- 2021 Cadillac XT6
- 2022 Cadillac XT6
- 2023 Cadillac XT6
- 2020 Chevrolet Blazer
- 2021 Chevrolet Blazer
- 2022 Chevrolet Blazer
- 2023 Chevrolet Blazer
- 2017 GMC Acadia
- 2018 GMC Acadia
- 2019 GMC Acadia
- 2020 GMC Acadia
- 2021 GMC Acadia
- 2022 GMC Acadia
- 2023 GMC Acadia
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.