# Service bulletin 18\-NA\-306 A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 11006644 - Published by NHTSA: 2024\-08\-28 - Manufacturer's number: 18\-NA\-306 - Manufacturer's date: 2024\-08\-01 - NHTSA component: UNKNOWN OR OTHER ## NHTSA's summary This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre\-Repair Authorization \(PRA\). ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11006644-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11006644-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Vehicles listed - 2016 to 2019 BUICK CASCADA - 2011 to 2025 BUICK ENCLAVE - 2013 to 2022 BUICK ENCORE - 2023 to 2025 BUICK ENCORE - 2020 to 2024 BUICK ENCORE GX - 2016 to 2024 BUICK ENVISION - 2024 to 2025 BUICK ENVISTA - 2011 to 2019 BUICK LACROSSE - 2020 BUICK LACROSSE - 2013 BUICK LESABRE - 2011 BUICK LUCERNE - 2012 BUICK LUCERNE - 2011 to 2020 BUICK REGAL - 2018 BUICK REGAL TOURX - 2020 BUICK REGAL TOURX - 2012 to 2017 BUICK VERANO - 2013 to 2019 CADILLAC ATS - 2015 to 2018 CADILLAC ATS\-V - 2020 to 2025 CADILLAC CT4 - 2020 to 2025 CADILLAC CT5 - 2013 to 2015 CADILLAC CT6 - 2016 to 2020 CADILLAC CT6 - 2021 CADILLAC CT6 - 2011 to 2019 CADILLAC CTS - 2011 to 2012 CADILLAC CTS\-V - 2014 to 2016 CADILLAC CTS\-V - 2018 CADILLAC CTS\-V - 2011 CADILLAC DTS - 2012 CADILLAC DTS - 2014 to 2017 CADILLAC ELR - 2011 to 2024 CADILLAC ESCALADE - 2011 to 2016 CADILLAC ESCALADE ESV - 2017 to 2023 CADILLAC ESCALADE ESV - 2011 to 2014 CADILLAC ESCALADE EXT - 2011 CADILLAC ESCALADE EXT 1500 - 2011 to 2014 CADILLAC ESCALADE HYBRID - 2023 to 2024 CADILLAC LYRIQ - 2011 to 2016 CADILLAC SRX - 2011 CADILLAC STS - 2012 CADILLAC STS - 2018 CADILLAC XT4 - 2019 to 2024 CADILLAC XT4 - 2013 to 2016 CADILLAC XT5 - 2017 to 2025 CADILLAC XT5 - 2020 to 2025 CADILLAC XT6 - 2013 to 2019 CADILLAC XTS - 2020 CADILLAC XTS - 2019 CHEVROLET 6500 - 2011 to 2013 CHEVROLET AVALANCHE - 2014 CHEVROLET AVALANCHE - 2011 to 2013 CHEVROLET AVALANCHE 1500 - 2013 CHEVROLET AVALANCHE 2500 - 2011 CHEVROLET AVEO - 2019 to 2024 CHEVROLET BLAZER - 2024 CHEVROLET BLAZER EV - 2022 to 2023 CHEVROLET BOLT EUV - 2017 to 2023 CHEVROLET BOLT EV - 2024 CHEVROLET BOLT EV - 2018 CHEVROLET C3500 - 2011 to 2024 CHEVROLET CAMARO - 2011 to 2018 CHEVROLET CAPRICE - 2012 to 2017 CHEVROLET CAPRICE POLICE PURSUIT - 2011 to 2018 CHEVROLET CAPTIVA - 2011 to 2014 CHEVROLET CAPTIVA SPORT - 2014 to 2017 CHEVROLET CHEVEROLET SS - 2015 to 2016 CHEVROLET CITY EXPRESS - 2018 CHEVROLET CITY EXPRESS - 2011 to 2012 CHEVROLET COLORADO - 2013 to 2014 CHEVROLET COLORADO - 2015 to 2024 CHEVROLET COLORADO - 2011 to 2025 CHEVROLET CORVETTE - 2024 CHEVROLET CORVETTE E\-RAY - 2011 CHEVROLET CORVETTE ZR1 - 2011 to 2019 CHEVROLET CRUZE - 2011 to 2025 CHEVROLET EQUINOX - 2024 CHEVROLET EQUINOX EV - 2011 to 2021 CHEVROLET EXPRESS - 2011 to 2012 CHEVROLET EXPRESS 1500 - 2014 CHEVROLET EXPRESS 1500 - 2011 CHEVROLET EXPRESS 2500 - 2014 CHEVROLET EXPRESS 2500 - 2023 to 2024 CHEVROLET EXPRESS 2500 - 2012 CHEVROLET EXPRESS 3500 - 2014 CHEVROLET EXPRESS 3500 - 2023 to 2024 CHEVROLET EXPRESS 3500 - 2012 CHEVROLET EXPRESS 4500 - 2014 CHEVROLET EXPRESS 4500 - 2016 CHEVROLET EXPRESS 4500 - 2013 CHEVROLET EXPRESS CUTAWAY - 2011 to 2023 CHEVROLET EXPRESS CUTAWAY VAN - 2011 CHEVROLET G VAN BUS - 2018 CHEVROLET G4500 - 2011 CHEVROLET HHR - 2011 to 2020 CHEVROLET IMPALA - 2014 CHEVROLET LUMINA - 2011 to 2024 CHEVROLET MALIBU - 2013 to 2014 CHEVROLET MALIBU ECO - 2016 to 2019 CHEVROLET MALIBU HYBRID - 2011 to 2024 CHEVROLET SILVERADO 1500 - 2011 to 2024 CHEVROLET SILVERADO 2500 - 2011 to 2024 CHEVROLET SILVERADO 3500 - 2019 to 2024 CHEVROLET SILVERADO 4500 - 2019 to 2021 CHEVROLET SILVERADO 5500 - 2023 to 2024 CHEVROLET SILVERADO 5500 - 2019 CHEVROLET SILVERADO 6500 - 2021 to 2023 CHEVROLET SILVERADO 6500 - 2025 CHEVROLET SILVERADO 6500 - 2024 CHEVROLET SILVERADO EV - 2018 CHEVROLET SILVERADO LT - 2011 CHEVROLET SONIC - 2012 to 2020 CHEVROLET SONIC - 2013 to 2022 CHEVROLET SPARK - 2014 to 2017 CHEVROLET SPARK EV - 2018 CHEVROLET SS - 2011 to 2022 CHEVROLET SUBURBAN - 2024 CHEVROLET SUBURBAN - 2011 CHEVROLET SUBURBAN 1500 - 2021 to 2024 CHEVROLET SUBURBAN 1500 - 2011 CHEVROLET SUBURBAN 2500 - 2011 to 2024 CHEVROLET TAHOE - 2011 to 2013 CHEVROLET TAHOE HYBRID - 2011 to 2016 CHEVROLET TAHOE POLICE PURSUIT - 2013 to 2014 CHEVROLET TRAILBLAZER - 2017 to 2020 CHEVROLET TRAILBLAZER - 2021 to 2025 CHEVROLET TRAILBLAZER - 2011 to 2025 CHEVROLET TRAVERSE - 2013 to 2025 CHEVROLET TRAX - 2011 to 2019 CHEVROLET VOLT - 2019 CHEVROLET duplicate SILVERADO 5500 - 2024 GMC 3500HD - 2011 to 2025 GMC ACADIA - 2011 to 2013 GMC CANYON - 2015 to 2024 GMC CANYON - 2011 to 2013 GMC ENVOY - 2011 GMC G VAN BUS - 2017 to 2018 GMC G3500 - 2022 to 2025 GMC HUMMER EV PICKUP - 2011 to 2022 GMC SAVANA - 2024 GMC SAVANA - 2011 to 2017 GMC SAVANA 1500 - 2011 to 2018 GMC SAVANA 2500 - 2023 GMC SAVANA 2500 - 2011 to 2018 GMC SAVANA 3500 - 2023 GMC SAVANA 3500 - 2011 to 2024 GMC SIERRA 1500 - 2011 to 2024 GMC SIERRA 2500 - 2011 to 2024 GMC SIERRA 3500 - 2011 to 2020 GMC SIERRA DENALI - 2024 GMC SIERRA EV - 2011 to 2025 GMC TERRAIN - 2011 to 2024 GMC YUKON - 2011 to 2013 GMC YUKON DENALI - 2015 to 2019 GMC YUKON DENALI - 2011 to 2018 GMC YUKON DENALI XL - 2011 to 2013 GMC YUKON HYBRID - 2011 GMC YUKON XL - 2012 to 2014 GMC YUKON XL - 2015 to 2023 GMC YUKON XL - 2011 GMC YUKON XL 1500 - 2012 GMC YUKON XL 1500 - 2023 GMC YUKON XL 1500 - 2011 GMC YUKON XL 2500 - 2012 to 2013 GMC YUKON XL 2500 JSON: [/v1/bulletins/11006644](/v1/bulletins/11006644) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2018-NA-306&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11006644&vehicle=Service%20bulletin%2018-NA-306)