Buick Lacrosse 2016–2026 — technical service bulletin

Bulletin PIP6085 · NHTSA communication 11023147 · issued Sep 8, 2025

Technical service bulletin

communication type

Unknown OR Other

component

2016–2026

model years

vehicle entries

Official summary

This Preliminary information communicates a possible issue with an engine timing chain, gear or crankshaft key.

Vehicles covered

2017 Buick Lacrosse
2018 Buick Lacrosse
2019 Buick Lacrosse
2018 Buick Regal
2019 Buick Regal
2016 Cadillac Ats
2017 Cadillac Ats
2018 Cadillac Ats
2019 Cadillac Ats
2020 Cadillac CT5
2021 Cadillac CT5
2022 Cadillac CT5
2023 Cadillac CT5
2024 Cadillac CT5
2025 Cadillac CT5
2026 Cadillac CT5
2016 Cadillac CT6
2017 Cadillac CT6
2018 Cadillac CT6
2019 Cadillac CT6
2020 Cadillac CT6
2016 Cadillac CTS
2017 Cadillac CTS
2018 Cadillac CTS
2019 Cadillac CTS
2018 Cadillac XT5
2019 Cadillac XT5
2020 Cadillac XT5
2021 Cadillac XT5
2022 Cadillac XT5
2023 Cadillac XT5
2024 Cadillac XT5
2025 Cadillac XT5
2020 Cadillac XT6
2021 Cadillac XT6
2022 Cadillac XT6
2023 Cadillac XT6
2024 Cadillac XT6
2025 Cadillac XT6
2019 Chevrolet Blazer
2020 Chevrolet Blazer
2021 Chevrolet Blazer
2022 Chevrolet Blazer
2023 Chevrolet Blazer
2024 Chevrolet Blazer
2025 Chevrolet Blazer
2016 Chevrolet Camaro
2017 Chevrolet Camaro
2018 Chevrolet Camaro
2019 Chevrolet Camaro
2020 Chevrolet Camaro
2021 Chevrolet Camaro
2022 Chevrolet Camaro
2023 Chevrolet Camaro
2024 Chevrolet Camaro
2016 Chevrolet Colorado
2017 Chevrolet Colorado
2018 Chevrolet Colorado
2019 Chevrolet Colorado
2020 Chevrolet Colorado

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.