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Service bulletin 18-NA-279

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 id11006371
Published by NHTSA2024-08-14
Manufacturer's number18-NA-279
Manufacturer's date2024-07-26
NHTSA componentUNKNOWN OR OTHER; ELECTRICAL SYSTEM

NHTSA's summary

This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

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
BRIGHTDROP EV6002022
BRIGHTDROP ZEVO 6002023 (the catalog's model; the bulletin names a series or trim of it)
BUICK ENCLAVE2019, 2020, 2021, 2022, 2023
BUICK ENCORE2019, 2020, 2021, 2022
BUICK ENCORE GX2020, 2021, 2022, 2023
BUICK ENVISION2019, 2020, 2021, 2022, 2023
BUICK LACROSSE2019
CADILLAC CT42020, 2021, 2022, 2023, 2024
CADILLAC CT52020, 2021, 2022, 2023, 2024
CADILLAC CT62019, 2020
CADILLAC ESCALADE2019, 2020, 2021, 2022, 2023
CADILLAC ESCALADE ESV2019, 2020, 2021, 2022, 2023
CADILLAC LYRIQ2023, 2024
CADILLAC XT42019, 2020, 2021, 2022
CADILLAC XT52019, 2020, 2021, 2022, 2023, 2024, 2025
CADILLAC XT62020, 2021, 2022, 2023, 2024, 2025
CHEVROLET BLAZER2019, 2020, 2021
CHEVROLET BOLT EUV2022, 2023
CHEVROLET BOLT EV2019, 2020, 2021, 2022, 2023
CHEVROLET CAMARO2019, 2020, 2021
CHEVROLET CRUZE2019
CHEVROLET MALIBU2019, 2020, 2021, 2022
CHEVROLET SILVERADO 15002019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SPARK2019, 2020, 2021, 2022
CHEVROLET SUBURBAN2019, 2020, 2021, 2022
CHEVROLET SUBURBAN 15002021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2019, 2020, 2021, 2022, 2023
CHEVROLET TRAILBLAZER2021, 2022, 2023
CHEVROLET TRAVERSE2019, 2020, 2021
CHEVROLET TRAX2019, 2020, 2021, 2022
CHEVROLET VOLT2019
GMC ACADIA2020, 2021
GMC HUMMER EV PICKUP2022, 2023
GMC SIERRA 15002019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2019, 2020, 2021, 2022, 2023
GMC YUKON DENALI2019 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2019, 2020, 2021, 2022, 2023

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

Recalls for the same vehicles and component
26V4940002026-07-30. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
25V3560002025-05-29. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT
24V8120002024-10-31. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY THERMAL:MANAGEMENT:SOFTWARE; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
24V4810002024-06-27. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
24V4590002024-06-20. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
24V3200002024-05-09. ELECTRICAL SYSTEM:PROPULSION SYSTEM; ELECTRICAL SYSTEM:WIRING
23V6820002023-10-12. ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE
20234862023-08-31. Electrical
23V5670002023-08-10. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; AIR BAGS:FRONTAL
23V3670002023-05-25. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

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
N2525140012026-10-05. Service campaign. Service Update. Certain vehicles listed above may enable the new King Crab Feature through OTA programming or programming at the dealer. Dealers will perform a comprehensive software update. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
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.
22-NA-0072025-11-15. Service bulletin. This service bulletin provides procedures to correct customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler (CAC) Icing - Malfunction Indicator Lamp (MIL) Illuminated with DTCs P0299, P0234, P0236, P2227, P00C7 Set.
25-NA-1262025-11-05. Service bulletin. This service bulletin provides information on the wireless charging feature not working or intermittently working, with the replacement of the Wireless Charging Module.
25-NA-1082025-10-27. Service bulletin. 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-0442025-10-27. Service bulletin. This service bulletin provides information for dealers/technicians on SPS2 Hybrid/EV Battery Data Retrieval for Service High Voltage DTCs.
24-NA-2022025-10-27. Service bulletin. This service bulletin provides dealers with Warranty Administration information on North American Charging Standard (NACS) DC Adapter Warranty Claim Information.
23-NA-2022025-10-25. Service bulletin. This service bulletin provides information on High Voltage Drive Motor Battery - TAC Approval and Exchange Program for BrightDrop, Chevrolet Silverado EV, and GMC Sierra EV, HUMMER EV/SUV.
23-NA-1702025-10-25. Service bulletin. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
23-NA-2012025-10-21. Service bulletin. This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of Steering Assist and/or Loss of Brake Assist and Malfunction Indicator Lamp (MIL) Illuminated.