# 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. - Type: Service bulletin - NHTSA id: 10232069 - Published by NHTSA: 2023\-02\-23 - Manufacturer's number: 18\-NA\-279 - Manufacturer's date: 2023\-02\-10 - NHTSA component: EXTERIOR LIGHTING; LATCHES/LOCKS/LINKAGES; EQUIPMENT ## NHTSA's summary This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10232069-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10232069-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Equipment and accessories, Latches and locks, Lighting ## Vehicles listed - 2019 to 2023 BUICK ENCLAVE - 2019 to 2022 BUICK ENCORE - 2020 to 2023 BUICK ENCORE GX - 2019 to 2023 BUICK ENVISION - 2019 BUICK LACROSSE - 2020 to 2023 CADILLAC CT4 - 2020 to 2023 CADILLAC CT5 - 2019 to 2020 CADILLAC CT6 - 2019 to 2023 CADILLAC ESCALADE - 2019 to 2023 CADILLAC ESCALADE ESV - 2021 CADILLAC ESCALADE NA - 2023 CADILLAC LYRIQ - 2019 to 2022 CADILLAC XT4 - 2019 to 2021 CADILLAC XT5 - 2020 to 2021 CADILLAC XT6 - 2023 CADILLAC redundant LYRIQ - 2019 CHEVROLET 6500 - 2019 to 2021 CHEVROLET BLAZER - 2022 to 2023 CHEVROLET BOLT EUV - 2019 to 2023 CHEVROLET BOLT EV - 2019 to 2021 CHEVROLET CAMARO - 2019 CHEVROLET CRUZE - 2019 to 2022 CHEVROLET MALIBU - 2019 to 2023 CHEVROLET SILVERADO 1500 - 2020 to 2023 CHEVROLET SILVERADO 2500 - 2020 to 2023 CHEVROLET SILVERADO 3500 - 2020 to 2023 CHEVROLET SILVERADO 4500 - 2019 to 2021 CHEVROLET SILVERADO 5500 - 2023 CHEVROLET SILVERADO 5500 - 2021 to 2023 CHEVROLET SILVERADO 6500 - 2019 to 2022 CHEVROLET SPARK - 2019 to 2023 CHEVROLET SUBURBAN - 2021 to 2022 CHEVROLET SUBURBAN 1500 - 2019 to 2023 CHEVROLET TAHOE - 2021 to 2023 CHEVROLET TRAILBLAZER - 2019 to 2021 CHEVROLET TRAVERSE - 2019 to 2022 CHEVROLET TRAX - 2019 CHEVROLET VOLT - 2020 to 2021 GMC ACADIA - 2022 to 2023 GMC HUMMER EV PICKUP - 2019 to 2023 GMC SIERRA 1500 - 2020 to 2023 GMC SIERRA 2500 - 2020 to 2023 GMC SIERRA 3500 - 2020 GMC SIERRA DENALI - 2019 to 2023 GMC YUKON ## Recalls for the same vehicles and component - [2024519](/recalls/tc/2024519.md), 2024-09-12: Lights And Instruments - [2024060](/recalls/tc/2024060.md), 2024-02-01: Lights And Instruments - [24V060000](/recalls/nhtsa/24V060000.md), 2024-02-01: LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH - [2023591](/recalls/tc/2023591.md), 2023-11-02: Lights And Instruments - [2023472](/recalls/tc/2023472.md), 2023-08-24: Lights And Instruments - [2022700](/recalls/tc/2022700.md), 2022-12-08: Lights And Instruments - [22V903000](/recalls/nhtsa/22V903000.md), 2022-12-08: EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE - [2022634](/recalls/tc/2022634.md), 2022-11-03: Lights And Instruments - [22V827000](/recalls/nhtsa/22V827000.md), 2022-11-03: EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE - [2022348](/recalls/tc/2022348.md), 2022-06-30: Lights And Instruments ## Other bulletins for the same vehicles and component - [07\-08\-42\-006U](/bulletins/11026022.md), 2025-12-03, Service bulletin: EXTERIOR LIGHTING. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer \(Upfitter\), and/or turn signals flash fast after factory box removed. - [21\-NA\-166](/bulletins/11019325.md), 2025-06-06, Service bulletin: EXTERIOR LIGHTING; STEERING. This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling. - [07\-08\-42\-006T](/bulletins/11017243.md), 2025-04-25, Service bulletin: EXTERIOR LIGHTING. This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer \(Upfitter\), and/or turn signals flash fast after factory box removed. - [23\-NA\-086](/bulletins/11014377.md), 2025-02-20, Service bulletin: EXTERIOR LIGHTING. This service bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage. - [01\-08\-42\-001Q](/bulletins/11014170.md), 2025-02-11, Service bulletin: EXTERIOR LIGHTING. This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines. - [23\-NA\-086](/bulletins/11011117.md), 2024-12-04, Service bulletin: EXTERIOR LIGHTING. This service bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage. - [24\-NA\-039](/bulletins/11010707.md), 2024-11-21, Service bulletin: EXTERIOR LIGHTING; ELECTRICAL SYSTEM; STRUCTURE:BODY. This technical bulletin offers a procedure to correct the condition of Dead Battery and / or Unwanted Liftgate Opening. - [23\-NA\-086](/bulletins/11007940.md), 2024-09-21, Service bulletin: EXTERIOR LIGHTING. This service bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage. - [PIT5918B](/bulletins/11006460.md), 2024-08-16, Service bulletin: EXTERIOR LIGHTING. This Preliminary information communicates an issue where GM Accessory Illuminated Emblem may cause an issue with the left headlight/turn signal and dealership are to disable the Accessory Illuminated Emblem until a fix is available. - [24\-NA\-115](/bulletins/11004935.md), 2024-07-18, Service bulletin: EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Information on Low Beam Headlamp Bulb Diagnosis/Replacement \(Inspect Bulb and Connector\). JSON: [/v1/bulletins/10232069](/v1/bulletins/10232069) [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-279&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10232069&vehicle=Service%20bulletin%2018-NA-279)