# Service bulletin 18NA279 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: 10198843 - Published by NHTSA: 2021\-07\-06 - Manufacturer's number: 18NA279 - Manufacturer's date: 2021\-05\-12 - NHTSA component: LATCHES/LOCKS/LINKAGES ## 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/2021/MC-10198843-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10198843-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Latches and locks ## Vehicles listed - 2019 to 2021 BUICK ENCLAVE - 2019 to 2021 BUICK ENCORE - 2020 to 2021 BUICK ENCORE GX - 2019 to 2021 BUICK ENVISION - 2019 BUICK LACROSSE - 2020 to 2021 CADILLAC CT4 - 2020 to 2021 CADILLAC CT5 - 2019 to 2020 CADILLAC CT6 - 2019 to 2020 CADILLAC ESCALADE - 2019 to 2021 CADILLAC ESCALADE ESV - 2021 CADILLAC ESCALADE NA - 2019 to 2021 CADILLAC XT4 - 2019 to 2021 CADILLAC XT5 - 2020 to 2021 CADILLAC XT6 - 2019 to 2021 CHEVROLET BLAZER - 2019 CHEVROLET BOLT EV - 2019 to 2021 CHEVROLET CAMARO - 2019 CHEVROLET CRUZE - 2019 to 2021 CHEVROLET MALIBU - 2019 to 2021 CHEVROLET SILVERADO 1500 - 2020 to 2021 CHEVROLET SILVERADO 2500 - 2020 to 2021 CHEVROLET SILVERADO 4500 - 2019 to 2021 CHEVROLET SPARK - 2019 to 2021 CHEVROLET SUBURBAN - 2019 to 2021 CHEVROLET TAHOE - 2021 CHEVROLET TRAILBLAZER - 2019 to 2021 CHEVROLET TRAVERSE - 2019 to 2021 CHEVROLET TRAX - 2019 CHEVROLET VOLT - 2020 to 2021 GMC ACADIA - 2019 to 2021 GMC SIERRA 1500 - 2020 to 2021 GMC SIERRA 2500 - 2019 to 2021 GMC YUKON - 2019 to 2021 GMC YUKON XL ## Recalls for the same vehicles and component - [24V060000](/recalls/nhtsa/24V060000.md), 2024-02-01: LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH - [20V324000](/recalls/nhtsa/20V324000.md), 2020-06-04: LATCHES/LOCKS/LINKAGES:HOOD:LATCH; STRUCTURE:BODY:HOOD - [20V184000](/recalls/nhtsa/20V184000.md), 2020-03-26: LATCHES/LOCKS/LINKAGES:DOORS:LATCH - [20V142000](/recalls/nhtsa/20V142000.md), 2020-03-12: LATCHES/LOCKS/LINKAGES:HOOD:LATCH ## Other bulletins for the same vehicles and component - [N232426401\-01](/bulletins/10253562.md), 2024-04-25, Service bulletin: LATCHES/LOCKS/LINKAGES. Customer Satisfaction Program. As a remedy for Safety Recall N232426400, certain vehicles had the liftgate exterior release switch assembly disabled. This Customer Satisfaction Program provides the final repair to restore the function of the disabled liftgate exterior release switch assembly. Dealers will replace the liftgate exterior release switch assembly. - [N232426401](/bulletins/10253537.md), 2024-04-24, Service bulletin: LATCHES/LOCKS/LINKAGES. Customer Satisfaction Program. As a remedy for Safety Recall N232426400, certain vehicles had the liftgate exterior release switch assembly disabled. This Customer Satisfaction Program provides the final repair to restore the function of the disabled liftgate exterior release switch assembly. Dealers will replace the liftgate exterior release switch assembly. - [PIT6006A](/bulletins/10251699.md), 2024-03-18, Service bulletin: LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM:IGNITION:ANTI\-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. This Preliminary information communicates where to find the back antenna for learning new key fobs. - [23\-NA\-112](/bulletins/10251362.md), 2024-03-06, Service bulletin: STRUCTURE:BODY:TAILGATE; ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening. - [19\-NA\-126](/bulletins/10244699.md), 2023-11-02, Service bulletin: EQUIPMENT; LATCHES/LOCKS/LINKAGES:TRUNK LID:LATCH:EMERGENCY MECHANICAL RELEASE; STRUCTURE. This service bulletin provides information for dealers/technicians on an emergency trunk release key won’t turn; unable to open trunk from lock cylinder behind rear seat back; information on convertible key extender. - [PIT6006](/bulletins/10236172.md), 2023-05-15, Service bulletin: LATCHES/LOCKS/LINKAGES:DOORS:LOCK; EQUIPMENT:ELECTRICAL. This Preliminary information communicates where to find the back antenna for learning new key fobs. - [22\-NA\-200](/bulletins/10235806.md), 2023-05-06, Service bulletin: ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES. This service bulletin provides repair information to correct a customer concern of Child Safety Lock Update failure. - [PIT5893A](/bulletins/10232844.md), 2023-03-13, Service bulletin: POWER TRAIN; SEATS; LATCHES/LOCKS/LINKAGES:HATCHBACK/LIFTGATE:LOCK. This Preliminary information communicates that power liftgate actuators have been returned for warranty due to improper removal procedures. The technician is instructed on how to properly remove the power liftgate actuator from the vehicle without damaging it. - [18\-NA\-279](/bulletins/10232069.md), 2023-02-23, Service bulletin: EXTERIOR LIGHTING; LATCHES/LOCKS/LINKAGES; EQUIPMENT. This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking. - [22\-NA\-200](/bulletins/10231894.md), 2023-02-21, Service bulletin: EQUIPMENT; LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Child Safety Lock Update failure. JSON: [/v1/bulletins/10198843](/v1/bulletins/10198843) [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%2018NA279&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10198843&vehicle=Service%20bulletin%2018NA279)