Buick Enclave 2007–2023 — technical service bulletin
Bulletin 19-NA-256 · NHTSA communication 10234106 · issued Mar 15, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2007–2023
model years
60
vehicle entries
Official summary
This service bulletin provides diagnostic aid information/procedures to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for knocking, rattle, squeak and/or squeal type noises from engine.
Vehicles covered
- 2008 Buick Enclave
- 2009 Buick Enclave
- 2010 Buick Enclave
- 2011 Buick Enclave
- 2012 Buick Enclave
- 2013 Buick Enclave
- 2014 Buick Enclave
- 2015 Buick Enclave
- 2016 Buick Enclave
- 2017 Buick Enclave
- 2018 Buick Enclave
- 2019 Buick Enclave
- 2020 Buick Enclave
- 2021 Buick Enclave
- 2022 Buick Enclave
- 2023 Buick Enclave
- 2010 Buick Lacrosse
- 2011 Buick Lacrosse
- 2012 Buick Lacrosse
- 2013 Buick Lacrosse
- 2014 Buick Lacrosse
- 2015 Buick Lacrosse
- 2016 Buick Lacrosse
- 2017 Buick Lacrosse
- 2018 Buick Lacrosse
- 2019 Buick Lacrosse
- 2018 Buick Regal
- 2019 Buick Regal
- 2020 Buick Regal
- 2013 Cadillac Ats
- 2014 Cadillac Ats
- 2015 Cadillac Ats
- 2016 Cadillac Ats
- 2017 Cadillac Ats
- 2018 Cadillac Ats
- 2019 Cadillac Ats
- 2016 Cadillac Ats-V
- 2017 Cadillac Ats-V
- 2018 Cadillac Ats-V
- 2022 Cadillac CT4
- 2023 Cadillac CT4
- 2020 Cadillac CT5
- 2021 Cadillac CT5
- 2022 Cadillac CT5
- 2023 Cadillac CT5
- 2016 Cadillac CT6
- 2017 Cadillac CT6
- 2018 Cadillac CT6
- 2019 Cadillac CT6
- 2020 Cadillac CT6
- 2007 Cadillac CTS
- 2008 Cadillac CTS
- 2009 Cadillac CTS
- 2010 Cadillac CTS
- 2011 Cadillac CTS
- 2012 Cadillac CTS
- 2013 Cadillac CTS
- 2014 Cadillac CTS
- 2015 Cadillac CTS
- 2016 Cadillac CTS
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.