WenmarOpen by Wenmar Pro

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10171887
Published by NHTSA2020-03-02
Manufacturer's number18NA279
Manufacturer's date2020-01-22
NHTSA componentSTRUCTURE:BODY:DOOR; LATCHES/LOCKS/LINKAGES:DOORS:LATCH

NHTSA's summary

This informational 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

Body and frame, Latches and locks, Door latch

Vehicles listed
BUICK ENCLAVE2019, 2020
BUICK ENCORE2019, 2020
BUICK ENVISION2019, 2020
BUICK LACROSSE2019
CADILLAC CT42020
CADILLAC CT52020
CADILLAC CT62019, 2020
CADILLAC ESCALADE2019, 2020
CADILLAC ESCALADE ESV2019, 2020
CADILLAC XT42019, 2020
CADILLAC XT52020
CADILLAC XT62020
CHEVROLET BLAZER2019, 2020
CHEVROLET BOLT EV2019
CHEVROLET CAMARO2019, 2020
CHEVROLET CRUZE2019
CHEVROLET MALIBU2019, 2020
CHEVROLET SILVERADO 15002019, 2020 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SPARK2019, 2020
CHEVROLET SUBURBAN2019, 2020
CHEVROLET TAHOE2019, 2020
CHEVROLET TRAVERSE2019, 2020
CHEVROLET TRAX2019, 2020
CHEVROLET VOLT2019
GMC ACADIA2020
GMC SIERRA 15002019, 2020 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2019, 2020

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

Recalls for the same vehicles and component
20V1840002020-03-26. LATCHES/LOCKS/LINKAGES:DOORS:LATCH

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
PIE0589A2020-12-21. Service bulletin. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a concern with the Rear View Camera not aligned (verbatims such as rear/back up camera is misaligned, crooked, tilted, etc. and usually tied to an endgate/tailgate latch handle replacement).
PIT57492020-08-10. Service bulletin. This Preliminary information communicates an issue with the rear door lock rod sticking in the door panel bezel and provides direction on repairing the issue.
PIC63732019-12-09. Service bulletin. This Preliminary information communicates information to the technician on how to diagnose a concern where the door locks unlock three times in succession when the vehicle is first started / driven.
PIT56652019-04-08. Service bulletin. This Preliminary information communicates customers may comment on poor remote keyless entry (RKE) range (less than 20 feet.) Some customers may comment that the RKE fob must be held next to the driver door handle before the doors will unlock when passively attempting to unlock the door. The Radio Antenna Amplifier may be causing the range issue.
PIT56292018-09-17. Service bulletin. This Preliminary information communicates steps to enable passive door unlocking.