Buick Lacrosse 2016–2018 — technical service bulletin
Bulletin 17NA021 · NHTSA communication 10199229 · issued May 14, 2021
Technical service bulletin
communication type
Service Brakes
component
2016–2018
model years
19
vehicle entries
Official summary
This service bulletin provides a procedure for replacing the oil pump, power brake booster and power brake booster vacuum hose to eliminate a hard brake pedal and/or air type noise heard upon brake apply due to oil in the brake booster.
Vehicles covered
- 2017 Buick Lacrosse
- 2018 Buick Lacrosse
- 2018 Buick Regal
- 2016 Cadillac Ats
- 2017 Cadillac Ats
- 2018 Cadillac Ats
- 2016 Cadillac CT6
- 2017 Cadillac CT6
- 2018 Cadillac CT6
- 2016 Cadillac CTS
- 2017 Cadillac CTS
- 2018 Cadillac CTS
- 2017 Cadillac XT5
- 2018 Cadillac XT5
- 2016 Chevrolet Camaro
- 2017 Chevrolet Camaro
- 2018 Chevrolet Camaro
- 2017 GMC Acadia
- 2018 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.