NHTSA ID Number: 11006371
Manufacturer Communication Number: 18-NA-279
TSB/Document Date: 2024-08-14
Summary
This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
Bulletin No.: 18-NA-279
Service Bulletin
Date: July, 2024
INFORMATION
Subject:
Brand:
BrightDrop
Information on Passive Door Unlocking Inoperative and/or Enabling and
Disabling of Passive Unlocking
Model:
to
600 eLCV
2022
2022
Zevo 600
2023
2023
Enclave
2019
2023
Encore
2019
2022
Encore GX
2020
2023
Envision
2019
2023
LaCrosse
2019
2019
2020
2024
CT6
2019
2020
Escalade
Models
2019
2023
LYRIQ
2023
2024
XT4
2019
2022
XT5
2019
XT6
2020
2019
Bolt EUV
2022
CT5
Cruze
2023
2019
Silverado
1500 (New
Model)
2019
2019
Blazer
2019
2021
Camaro
2019
2021
Malibu
2019
2022
Spark
2019
2022
Suburban
2019
2023
Tahoe
2019
2023
Trailblazer
2021
2023
Traverse
Trax
Silverado
Copyright 2024 General Motors
. All Rights Reserved.
2019
2020
from
Engine:
All
All
to
2025
2019
Volt
VIN:
from
CT4
Model Year:
2021
2022
2023
—
Page 2
Brand:
July, 2024
Model:
Model Year:
VIN:
from
to
Acadia
2020
2021
2022
2023
Yukon
Bulletin No.: 18-NA-279
from
Engine:
to
2023
Sierra 1500
(New Model)
2019
Sierra
2020
2019
2023
Involved Region or Country
North America, Chile, Colombia, Ecuador, Peru, Europe, Israel, Middle East, Cadillac
Korea (South Korea), GM Korea Company, Uzbekistan, China, Japan, Malaysia, Vietnam
Condition
Some customers may comment that the passive door unlocking feature is inoperative
when pressing the button on any door handle or tailgate release handle. They may also
comment that all turn signals flash 4 times quickly when the button is pressed.
When using the following procedures, the owner can cycle between Passive Unlocking
Enabled to Passive Unlocking Disabled, and back.
Once any individual FOB is used to disable Passive Unlocking, Passive Unlocking will be
disabled for ALL FOBs. This will also disable hands free liftgate on liftgate equipped vehicles.
Additionally, as shown below, some listed vehicles have “Passive Door Unlock” as a Vehicle personalization feature via the center stack. When selected, this option applies to ALL
FOBs.
Correction
5420080
Service Procedure
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict
between the procedures set forth in this bulletin
and the laws that apply to your dealership, you
must follow those applicable laws.
Important: This technical service bulletin (TSB) can
only be completed by certified repair facilities who have
met all specific training, tool and equipment require-
ments pertaining to the vehicle Brand and Model
serviced. Repairs must be performed by a technician
who has successfully completed the required training.
Bulletin No.: 18-NA-279
July, 2024
With the vehicle off:
Starting
State
Passive
Unlocking is
Enabled
Passive
Unlocking is
Disabled
Do:
Results in:
Press and Hold both Lock
and Unlock FOB buttons
for 3 seconds.
Turn Signals
flash 4 times
and Passive
Unlocking is
Disabled.
When the
button on the
door handle
is pressed,
the Turn Signals flash 4
times and the
doors remain
locked.
Press and Hold both Lock
and Unlock FOB buttons
for 3 seconds.
Page 3
Note: If it is necessary to contact the Technical Assistance Center (TAC) for this issue, please obtain the
following information from the customer prior to calling:
How long driver had vehicle?Was issue there from
beginning of vehicle delivery or occurred after?Where
does the driver keep the FOB? Front pocket, rear
pocket, etc.Single driver or multiple drivers for vehicle?
Does customer remember pressing both lock and
unlock on FOB at the same time?Has anyone else
used the FOB?
Customer Information
Please share this information with the customer,
including a copy of this bulletin.
Turn Signals
flash 2 times
and Passive
Unlocking is
Enabled.
When the
button on the
door handle
is pressed,
the door(s)
will unlock.
Version
9
Modified
Released September 13, 2018
Revised May 29, 2019 – Added the Chevrolet Blazer and Cadillac XT6 Models, updated
the Involved Region or Country section and added a Note to the Results in section.
Revised October 10, 2019 – Added Models, 2020 Model Year, removed the Opel Karl
model, updated the Involved Region or Country section, removed RPO information,
added Correction statements and graphic and removed the Note in the Results in section.
Revised January 22, 2020 – Corrected Flash Information in Results in section.
Revised May 12, 2021 – Added the Buick Encore GX and Chevrolet Trailblazer models,
2021 Model Year to certain models, updated the Involved Region or Country section and
added several Additional SI Keywords.
Revised January 20, 2023 – Added the 2020–2022 Model Years to Bolt EV, added Bolt
EUV model, added "This will also disable hands free liftgate on liftgate equipped vehicles." in the Correction section and added an Important statement to start of Service Procedure.
Revised February 10, 2023 – Added the Hummer EV and Cadillac LYRIQ models and the
2022–2023 Model Years to applicable vehicles.
Revised April 25, 2024 – Added BrightDrop Models and second Important statement.
Revised July 26, 2024 – Added 2022-2025 Model Years to XT5 and XT6 and 2024 Model
Year to CT4, CT5 and LYRIQ.
Additional SI Keywords: disable, enable, entry, flashes,
FOBs, four, free, gate, hand, hands, hands-free,
handsfree, inop, key, keyless, left, lift, liftgate, locking,
passenger, PEPS, right, tail, transmitter, door, flash,
light, lights, lock
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job
properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.
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TSB/Document ID: 18-NA-279
Replacement Service Bulletin Number:
MFR Communication Date: 2024-07-26
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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