# Service bulletin 20\-NA\-132 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: 11012929 - Published by NHTSA: 2025\-01\-18 - Manufacturer's number: 20\-NA\-132 - Manufacturer's date: 2025\-01\-07 - NHTSA component: ELECTRICAL SYSTEM ## NHTSA's summary This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11012929-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11012929-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Electrical system ## Vehicles listed - 2023 BRIGHTDROP 600 ELCV - 2022 BRIGHTDROP EV600 - 2024 BRIGHTDROP ZEVO 400 - 2023 to 2024 BRIGHTDROP ZEVO 600 - 2016 to 2019 BUICK CASCADA - 2014 to 2025 BUICK ENCLAVE - 2014 to 2022 BUICK ENCORE - 2023 to 2025 BUICK ENCORE - 2020 to 2025 BUICK ENCORE GX - 2016 to 2025 BUICK ENVISION - 2024 to 2025 BUICK ENVISTA - 2014 to 2019 BUICK LACROSSE - 2020 BUICK LACROSSE - 2014 to 2020 BUICK REGAL - 2018 BUICK REGAL TOURX - 2020 BUICK REGAL TOURX - 2014 to 2017 BUICK VERANO - 2014 to 2019 CADILLAC ATS - 2015 to 2019 CADILLAC ATS\-V - 2020 to 2025 CADILLAC CT4 - 2020 to 2025 CADILLAC CT5 - 2014 to 2015 CADILLAC CT6 - 2016 to 2020 CADILLAC CT6 - 2021 CADILLAC CT6 - 2014 to 2019 CADILLAC CTS - 2014 to 2016 CADILLAC CTS\-V - 2018 CADILLAC CTS\-V - 2014 to 2017 CADILLAC ELR - 2014 to 2025 CADILLAC ESCALADE - 2014 to 2016 CADILLAC ESCALADE ESV - 2017 to 2025 CADILLAC ESCALADE ESV - 2014 CADILLAC ESCALADE EXT - 2014 CADILLAC ESCALADE HYBRID - 2025 CADILLAC ESCALADE IQ - 2023 to 2025 CADILLAC LYRIQ - 2025 CADILLAC OPTIQ - 2014 to 2016 CADILLAC SRX - 2018 CADILLAC XT4 - 2019 to 2025 CADILLAC XT4 - 2014 to 2016 CADILLAC XT5 - 2017 to 2025 CADILLAC XT5 - 2020 to 2025 CADILLAC XT6 - 2014 to 2019 CADILLAC XTS - 2020 CADILLAC XTS - 2014 to 2015 CHEVROLET 3500 - 2016 CHEVROLET 3500 - 2017 to 2019 CHEVROLET 3500 - 2020 CHEVROLET 3500 - 2021 CHEVROLET 3500 - 2022 CHEVROLET 3500 - 2024 CHEVROLET 3500HD - 2016 CHEVROLET 4500 - 2017 to 2019 CHEVROLET 4500 - 2020 CHEVROLET 4500 - 2022 CHEVROLET 4500 - 2017 to 2023 CHEVROLET 4500HD - 2017 to 2022 CHEVROLET 4500XD - 2017 to 2023 CHEVROLET 5500HD - 2018 to 2022 CHEVROLET 5500XD - 2019 CHEVROLET 6500 - 2019 to 2023 CHEVROLET 6500HD - 2014 CHEVROLET AVALANCHE - 2019 to 2025 CHEVROLET BLAZER - 2024 to 2025 CHEVROLET BLAZER EV - 2022 to 2023 CHEVROLET BOLT EUV - 2017 to 2023 CHEVROLET BOLT EV - 2024 CHEVROLET BOLT EV - 2025 CHEVROLET BRIGHTDROP 400 - 2025 CHEVROLET BRIGHTDROP 600 - 2018 CHEVROLET C3500 - 2014 to 2024 CHEVROLET CAMARO - 2014 to 2018 CHEVROLET CAPRICE - 2014 to 2017 CHEVROLET CAPRICE POLICE PURSUIT - 2014 to 2018 CHEVROLET CAPTIVA - 2014 CHEVROLET CAPTIVA SPORT - 2014 to 2017 CHEVROLET CHEVEROLET SS - 2015 to 2016 CHEVROLET CITY EXPRESS - 2018 CHEVROLET CITY EXPRESS - 2014 CHEVROLET COLORADO - 2015 to 2025 CHEVROLET COLORADO - 2014 to 2025 CHEVROLET CORVETTE - 2024 CHEVROLET CORVETTE E\-RAY - 2014 to 2019 CHEVROLET CRUZE - 2014 to 2025 CHEVROLET EQUINOX - 2024 to 2025 CHEVROLET EQUINOX EV - 2014 to 2021 CHEVROLET EXPRESS - 2023 CHEVROLET EXPRESS - 2014 CHEVROLET EXPRESS 1500 - 2014 to 2019 CHEVROLET EXPRESS 2500 - 2023 to 2024 CHEVROLET EXPRESS 2500 - 2014 to 2024 CHEVROLET EXPRESS 3500 - 2014 CHEVROLET EXPRESS 4500 - 2016 CHEVROLET EXPRESS 4500 - 2014 to 2024 CHEVROLET EXPRESS CUTAWAY VAN - 2018 CHEVROLET G4500 - 2014 to 2020 CHEVROLET IMPALA - 2016 to 2019 CHEVROLET LOW CAB FORWARD 3500 - 2016 to 2017 CHEVROLET LOW CAB FORWARD 4500 - 2016 to 2017 CHEVROLET LOW CAB FORWARD 5500 - 2018 CHEVROLET LOW CAB FORWARD 6500 - 2025 CHEVROLET LOW CAB FORWARD N SERIES - 2014 CHEVROLET LUMINA - 2014 to 2025 CHEVROLET MALIBU - 2014 CHEVROLET MALIBU ECO - 2016 to 2019 CHEVROLET MALIBU HYBRID - 2014 to 2025 CHEVROLET SILVERADO 1500 - 2014 to 2025 CHEVROLET SILVERADO 2500 - 2014 to 2025 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 to 2025 CHEVROLET SILVERADO EV - 2018 CHEVROLET SILVERADO LT - 2014 to 2020 CHEVROLET SONIC - 2014 to 2022 CHEVROLET SPARK - 2014 to 2017 CHEVROLET SPARK EV - 2014 to 2022 CHEVROLET SUBURBAN - 2024 CHEVROLET SUBURBAN - 2021 to 2025 CHEVROLET SUBURBAN 1500 - 2014 to 2025 CHEVROLET TAHOE - 2014 to 2016 CHEVROLET TAHOE POLICE PURSUIT - 2014 to 2015 CHEVROLET TRAILBLAZER - 2017 to 2020 CHEVROLET TRAILBLAZER - 2021 to 2025 CHEVROLET TRAILBLAZER - 2014 to 2025 CHEVROLET TRAVERSE - 2014 to 2025 CHEVROLET TRAX - 2014 to 2019 CHEVROLET VOLT - 2019 CHEVROLET duplicate SILVERADO 5500 - 2024 GMC 3500HD - 2014 to 2025 GMC ACADIA - 2015 to 2025 GMC CANYON - 2017 to 2018 GMC G3500 - 2022 to 2025 GMC HUMMER EV PICKUP - 2014 to 2024 GMC SAVANA - 2014 to 2017 GMC SAVANA 1500 - 2014 to 2018 GMC SAVANA 2500 - 2023 GMC SAVANA 2500 - 2014 to 2018 GMC SAVANA 3500 - 2023 GMC SAVANA 3500 - 2025 GMC SAVANA 3500 - 2014 to 2024 GMC SAVANA CUTAWAY VAN - 2014 to 2025 GMC SIERRA 1500 - 2014 to 2025 GMC SIERRA 2500 - 2014 to 2025 GMC SIERRA 3500 - 2014 to 2020 GMC SIERRA DENALI - 2024 to 2025 GMC SIERRA EV - 2014 to 2025 GMC TERRAIN - 2014 to 2025 GMC YUKON - 2015 to 2019 GMC YUKON DENALI - 2014 to 2018 GMC YUKON DENALI XL - 2014 GMC YUKON XL - 2015 to 2025 GMC YUKON XL - 2023 GMC YUKON XL 1500 ## Recalls for the same vehicles and component - [24V937000](/recalls/nhtsa/24V937000.md), 2024-12-18: FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM - [2024294](/recalls/tc/2024294.md), 2024-05-24: Electrical - [24V320000](/recalls/nhtsa/24V320000.md), 2024-05-09: ELECTRICAL SYSTEM:PROPULSION SYSTEM; ELECTRICAL SYSTEM:WIRING - [24V133000](/recalls/nhtsa/24V133000.md), 2024-02-22: ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING - [2023210](/recalls/tc/2023210.md), 2023-04-06: Electrical - [23V247000](/recalls/nhtsa/23V247000.md), 2023-04-06: ELECTRICAL SYSTEM:WIRING - [2021407](/recalls/tc/2021407.md), 2021-07-01: Electrical - [21V421000](/recalls/nhtsa/21V421000.md), 2021-06-10: AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; ELECTRICAL SYSTEM:SOFTWARE - [2021166](/recalls/tc/2021166.md), 2021-03-18: Electrical - [21V189000](/recalls/nhtsa/21V189000.md), 2021-03-18: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES ## Other bulletins for the same vehicles and component - [N242468490\-02](/bulletins/11032963.md), 2026-05-28, Service campaign: ELECTRICAL SYSTEM. Certain vehicles may have missing cavity plugs from the rear chassis harness electrical connector. Dealers are to inspect the rear chassis harness and replace missing harness plugs as necessary. - [N252529080](/bulletins/11030439.md), 2026-04-01, Service campaign: ELECTRICAL SYSTEM. Service Update. Certain vehicles listed above may be missing a high voltage header plug on the RESS battery pack drive motor connector. Dealers are to inspect the RESS pack connectors and install the proper HV Header Plug if missing. - [PIE0831A](/bulletins/11030340.md), 2026-03-31, Service bulletin: ELECTRICAL SYSTEM; ENGINE. This engineering information \(EI\) closure ends the need for gathering further information from technicians in regard to the Malfunction Indicator Lamp \(MIL\) illuminated on Driver Information Center \(DIC\), DTC P0299 Set. - [N252515590](/bulletins/11027795.md), 2026-01-27, Service campaign: ELECTRICAL SYSTEM. Certain vehicles listed above, may have a condition in which the body\-to\-chassis ground strap may be corroded. Dealers will replace the ground strap. - [25\-NA\-021](/bulletins/11026043.md), 2025-12-03, Service bulletin: ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of Radio Software Update W23E\-178.1.2\-M174\-SQBR6\-93.3. - [25\-NA\-121](/bulletins/11024501.md), 2025-10-27, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information on the radio software related issues to update the radio to the latest software version Y177. - [25\-NA\-119](/bulletins/11024500.md), 2025-10-27, Service bulletin: AIR BAGS; ELECTRICAL SYSTEM. This service bulletin provides information on the Service Safety Restraint Message displayed on the DIC Airbag malfunction indicator illuminated. - [25\-NA\-108](/bulletins/11024499.md), 2025-10-27, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides a procedure to inspect and verify the drive shafts are over extending past the 5mm tolerance, causing the customers concern of a fluid leak under the vehicle. - [25\-NA\-044](/bulletins/11024498.md), 2025-10-27, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This service bulletin provides information for dealers/technicians on SPS2 Hybrid/EV Battery Data Retrieval for Service High Voltage DTCs. - [24\-NA\-235](/bulletins/11024497.md), 2025-10-27, Service bulletin: ELECTRICAL SYSTEM; STEERING. This technical bulletin provides a procedure to correct the condition of Steering Column Rattle and Turn Signal Over Cancels. JSON: [/v1/bulletins/11012929](/v1/bulletins/11012929) [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%2020-NA-132&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11012929&vehicle=Service%20bulletin%2020-NA-132)