# Service bulletin 24\-NA\-229 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: 11010901 - Published by NHTSA: 2024\-12\-02 - Manufacturer's number: 24\-NA\-229 - Manufacturer's date: 2024\-10\-17 - NHTSA component: ELECTRICAL SYSTEM ## NHTSA's summary This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010901-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11010901-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Electrical system ## Vehicles listed - 2020 to 2025 BUICK ENCLAVE - 2020 to 2022 BUICK ENCORE - 2020 to 2025 BUICK ENCORE GX - 2020 to 2025 BUICK ENVISION - 2024 to 2025 BUICK ENVISTA - 2020 to 2025 CADILLAC CT4 - 2020 to 2025 CADILLAC CT5 - 2020 CADILLAC CT6 - 2020 to 2025 CADILLAC ESCALADE - 2020 to 2025 CADILLAC ESCALADE ESV - 2020 to 2025 CADILLAC XT4 - 2020 to 2025 CADILLAC XT5 - 2020 to 2025 CADILLAC XT6 - 2020 to 2025 CHEVROLET BLAZER - 2020 to 2024 CHEVROLET CAMARO - 2020 to 2025 CHEVROLET COLORADO - 2020 to 2025 CHEVROLET CORVETTE - 2020 to 2025 CHEVROLET EQUINOX - 2020 to 2021 CHEVROLET EXPRESS - 2023 CHEVROLET EXPRESS - 2023 to 2024 CHEVROLET EXPRESS 2500 - 2020 to 2024 CHEVROLET EXPRESS 3500 - 2020 to 2025 CHEVROLET SILVERADO 1500 - 2020 to 2025 CHEVROLET SILVERADO 2500 - 2024 CHEVROLET SILVERADO 2500 HD - 2020 to 2025 CHEVROLET SILVERADO 3500 - 2024 CHEVROLET SILVERADO 3500 HD - 2020 to 2022 CHEVROLET SUBURBAN - 2024 CHEVROLET SUBURBAN - 2021 to 2025 CHEVROLET SUBURBAN 1500 - 2020 to 2025 CHEVROLET TAHOE - 2020 to 2025 CHEVROLET TRAVERSE - 2020 to 2025 GMC ACADIA - 2020 to 2025 GMC CANYON - 2022 to 2025 GMC HUMMER EV PICKUP - 2020 to 2024 GMC SAVANA - 2023 GMC SAVANA 2500 - 2023 GMC SAVANA 3500 - 2025 GMC SAVANA 3500 - 2020 to 2025 GMC SIERRA 1500 - 2020 to 2025 GMC SIERRA 2500 - 2024 GMC SIERRA 2500 HD - 2020 to 2025 GMC SIERRA 3500 - 2024 GMC SIERRA 3500 HD - 2020 to 2025 GMC YUKON - 2020 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 - [24V925000](/recalls/nhtsa/24V925000.md), 2024-12-12: FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM - [24V459000](/recalls/nhtsa/24V459000.md), 2024-06-20: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL - [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 - [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. - [PIE0829A](/bulletins/11030339.md), 2026-03-31, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. This engineering information \(EI\) closure ends the need for gathering further information from technicians in regard to the liftgate not opening and/or partially opening. - [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. - [24\-NA\-272](/bulletins/11026032.md), 2025-12-03, Service bulletin: ELECTRICAL SYSTEM; BACK OVER PREVENTION: WARNINGS. This technical bulletin provides repair information to correct a customer concern of Park Assist False Alerts on Z71 Traverse. - [24\-NA\-227](/bulletins/11025996.md), 2025-12-02, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. This service bulletin provides repair information to correct a customer concern of Vibration Rattle or Boom at 1800 to 2000 RPM. - [24\-NA\-166](/bulletins/11025974.md), 2025-12-02, Service bulletin: WHEELS; ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of DTC C1171 C1172 C1173 C1174 Tire Pressure Monitor Sensor Unable to Relearn Ethernet Cable Overlay for TCP OnStar Module. - [25\-NA\-061](/bulletins/11025554.md), 2025-11-15, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. This technical bulletin provides a procedure to correct the condition of Driver or Passenger Rear Door Handle Will Not Fold In. - [24\-NA\-227](/bulletins/11025553.md), 2025-11-15, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Vibration Rattle or Boom at 1800 to 2000 RPM. 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