NHTSA ID Number: 11007724
Manufacturer Communication Number: 23-NA-164
TSB/Document Date: 2024-09-12
Summary
This technical bulletin provides repair information to correct a customer concern of Vehicle Will Lock and Unlock (Active Functions Work) but Will Not Crank or Start (Loss of Passive Functions Do Not Work)
Bulletin No.: 23-NA-164
Service Bulletin
Date: August, 2024
TECHNICAL
Subject:
Brand:
Vehicle will lock and unlock (active functions work) but will not crank or start
(loss of passive functions do not work)
Model:
Model Year:
from
to
Enclave
2018
2024
Envision
2019
2020
XT5
2018
XT6
2020
Blazer
2019
Equinox
2018
Malibu
2019
Traverse
2018
2024
Acadia
2019
2023
Terrain
2018
2022
Involved Region or Country
VIN:
from
Engine:
to
2025
2025
2022
LFY
North America
Additional Options (RPOs)
Condition
Some customers may comment the vehicle will lock and unlock (active functions) but the
vehicle will not crank (passive functions).
Cause
This condition may have presented immediately following a low voltage condition, jump
start, battery charging, battery replacement or battery disconnect and reconnect. This can
present a memory corruption event in the BCM causing the learned fobs count to show 0.
Copyright 2024 General Motors
. All Rights Reserved.
Page 2
August, 2024
Bulletin No.: 23-NA-164
Important: Do not attempt the immobilizer procedure or module replacements before following this bulletin.
This procedure ONLY applies to the GEN3R BCM
GEN3R BCMs can be identified by either the label on the module or looking up the
BMPN part number information in GDS2.
Correction
6430397
Follow the steps below to verify BMPN is a GEN3R through GDS2.
Verify you have a GEN3R BCM Base Model Part Number. Only GEN3R BCMS are eligible for this bulletin. Navigate
to GDS2 > Module Diagnostics > [K9] Body Control Module > Identification Information > Identification Information.
Bulletin No.: 23-NA-164
August, 2024
Page 3
6430402
Page 4
August, 2024
Bulletin No.: 23-NA-164
6430401
Bulletin No.: 23-NA-164
August, 2024
Page 5
6430398
Page 6
August, 2024
Bulletin No.: 23-NA-164
6430399
Bulletin No.: 23-NA-164
August, 2024
Page 7
6430394
BMPNs eligible for this bulletin: 13518569, 13518570, 13518602, 13518603, 13519619, 13519620, 13519648,
13527252, 13527260, 13527261, 13527297, 13527298, 13527827, 13529492, 13529493, 13533809, 13533813,
13533814, 13533817, 13533821.
If the BCM is not a GEN3R, this bulletin does not apply. Continue with standard troubleshooting procedures in SI.
If the BCM is GEN3R, proceed.
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.
Note: You will be unable to confirm the FOB count is at 0 during this condition since you cannot power mode the
vehicle. When relearning the existing FOBs, you will see the FOB count during the SPS Immobilizer procedure.
Ensure you have 2 FOBs learned before completing the procedure.
1. From SPS Supported Controllers, select K9 Body Control Module “Program Transponder or Remote Key (Add)”
using bothexisting FOBs. If both existing FOBs cannot be located, make sure at least 2 keys are learned
during these steps.
Page 8
August, 2024
Bulletin No.: 23-NA-164
6430438
2. Confirm vehicle cranks and starts and all FOB functions work properly on every FOB and that there are no
current DTCs.
Parts Information
May require FOB replacements, use Electronic Parts Catalog to determine correct part number.
Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following
labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
Bulletin No.: 23-NA-164
August, 2024
Page 9
Labor Operation
Description
Labor Time
*2889818
GEN3R FOB Relearn
0.5 hr
*This is a unique Labor Operation for Bulletin use only.
Version
2
Modified
Released September 18, 2023
Revised August 13, 2024 – Added Buick Enclave, Cadillac XT5 and XT6, Chevrolet
Blazer and Traverse and updated Model Years.
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: 23-NA-164
Replacement Service Bulletin Number:
MFR Communication Date: 2024-08-14
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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