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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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11019017
Published by NHTSA2025-06-03
Manufacturer's number24-NA-229
Manufacturer's date2025-04-10
NHTSA componentELECTRICAL 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

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
BUICK ENCLAVE2020, 2021, 2022, 2023, 2024, 2025
BUICK ENCORE2020, 2021, 2022
BUICK ENCORE GX2020, 2021, 2022, 2023, 2024, 2025
BUICK ENVISION2020, 2021, 2022, 2023, 2024, 2025
BUICK ENVISTA2024, 2025
CADILLAC CT42020, 2021, 2022, 2023, 2024, 2025
CADILLAC CT52020, 2021, 2022, 2023, 2024, 2025
CADILLAC CT62020
CADILLAC ESCALADE2020, 2021, 2022, 2023, 2024, 2025
CADILLAC ESCALADE ESV2020, 2021, 2022, 2023, 2024, 2025
CADILLAC XT42020, 2021, 2022, 2023, 2024, 2025
CADILLAC XT52020, 2021, 2022, 2023, 2024, 2025
CADILLAC XT62020, 2021, 2022, 2023, 2024, 2025
CHEVROLET BLAZER2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET CAMARO2020, 2021, 2022, 2023, 2024
CHEVROLET COLORADO2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET CORVETTE2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET EQUINOX2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET EXPRESS2020, 2021
CHEVROLET EXPRESS2023, 2024, 2025
CHEVROLET EXPRESS 25002023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 35002020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS CUTAWAY VAN2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2020, 2021, 2022, 2023, 2024
CHEVROLET SUBURBAN 15002021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2020, 2021, 2022, 2023, 2024, 2025
CHEVROLET TRAVERSE2020, 2021, 2022, 2023, 2024, 2025
GMC ACADIA2020, 2021, 2022, 2023, 2024, 2025
GMC CANYON2020, 2021, 2022, 2023, 2024, 2025
GMC HUMMER EV PICKUP2022, 2023, 2024, 2025
GMC SAVANA2020, 2021, 2022, 2023, 2024, 2025
GMC SAVANA 25002023 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 35002023 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 35002025 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA CUTAWAY VAN2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC TERRAIN2020, 2021, 2022, 2023, 2024, 2025
GMC YUKON2020, 2021, 2022, 2023, 2024, 2025
GMC YUKON XL2020, 2021, 2022, 2023, 2024, 2025
GMC YUKON XL 15002023 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
24V9370002024-12-18. FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM
24V9250002024-12-12. FORWARD COLLISION AVOIDANCE: WARNINGS:EXTERNAL/PEDESTRIAN ALERT; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM
24V4590002024-06-20. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
24V3200002024-05-09. ELECTRICAL SYSTEM:PROPULSION SYSTEM; ELECTRICAL SYSTEM:WIRING
24V1330002024-02-22. ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
20232102023-04-06. Electrical
23V2470002023-04-06. ELECTRICAL SYSTEM:WIRING
21V4210002021-06-10. AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; ELECTRICAL SYSTEM:SOFTWARE
20211662021-03-18. Electrical
21V1890002021-03-18. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
N242468490-022026-05-28. Service campaign. 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.
N2525290802026-04-01. Service campaign. 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.
PIE0829A2026-03-31. Service bulletin. 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.
N2525155902026-01-27. Service campaign. 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-0212025-12-03. Service bulletin. 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-2722025-12-03. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Park Assist False Alerts on Z71 Traverse.
24-NA-2272025-12-02. Service bulletin. This service bulletin provides repair information to correct a customer concern of Vibration Rattle or Boom at 1800 to 2000 RPM.
24-NA-1662025-12-02. Service bulletin. 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-0612025-11-15. Service bulletin. This technical bulletin provides a procedure to correct the condition of Driver or Passenger Rear Door Handle Will Not Fold In.
24-NA-2272025-11-15. Service bulletin. This service bulletin provides repair information to correct a customer concern of Vibration Rattle or Boom at 1800 to 2000 RPM.