Bulletin No.:

Service Bulletin

Date:

21-NA-184
January, 2024

TECHNICAL
Subject:

Window Regulator – Replace Power Window Regulator Electronics

This Service Bulletin replaces PIT5922. Please discard all previous copies of PIT5922.

Brand:
Chevrolet
GMC

Model:
Tahoe
Suburban
Yukon
Yukon XL

Involved Region or Country

Model Year:

Build Date:

from

to

from

to

2021

2023

—

—

2021

2023

—

Engine:

Transmission:

—

—

—

North America

Additional Options (RPOs)

Condition

Some customers may have had new window regulator electronics or window motor
installed and will need the up-to-date calibrations for the Body Control Module (BCM).
The correct calibration files are based on the build date of the vehicles.
Note: Replacement parts may involve BCM reprogramming as well as window motor
replacement.

Cause

The cause of the condition may be that due to part shortages with the Brose FD window
regulators, engineering developed and implemented Continental electronics to be used
that need to be re-calibrated.

Copyright 2024 General Motors LLC. All Rights Reserved.

Page 2

January, 2024

Bulletin No.: 21-NA-184

Note: Have the VIN and your dealers Business Associate Code (BAC) when contacting
Techline Customer Assistance Center.
Verify the vehicle build date for proper window electronics and cal files:
Important: Calibration file part numbers change every model year
• Model Year 2021 Vehicles
– 2021 Vehicles with RPO &00W Continental Window Regulators will need to be
replaced with Brose electronics and a new calibration file

Correction

Important: GM dealer must contact the Techline Customer Support Center (TCSC)
(1-800-828-6860 English or 1-800-503-3222 French) to have the appropriate calibration
applied to the VIN. The vehicle VIN must be provided to TCSC to obtain a special Vehicle
Communications Interface (VCI).
– Both Regulator Assemblies/Motors need to be replaced
• Model Year 2022 Vehicles
– 2022 Vehicles with RPOs &00X Bosch and &00W Continental Window Regulators
will need to be replaced with Brose electronics and a new calibration
Important: GM dealer must contact the Techline Customer Support Center (TCSC)
(1-800-828-6860 English or 1-800-503-3222 French) to have the appropriate calibration
applied to the VIN. The vehicle VIN must be provided to TCSC to obtain a special Vehicle
Communications Interface (VCI).
Both Regulator Assemblies/ Motors need to be replaced
– 2022 Vehicles with RPO —00X Brose is compatible with the standard service motor,
does not need to replaced and uses the factory calibration
Do NOT need to replace both doors
• Model Year 2023 Vehicles
– 2023 Vehicles with RPO &00X Bosch Window Regulators will be replaced with
Brose electronics and a new calibration
Important: GM dealer must contact the Techline Customer Support Center (TCSC)
(1-800-828-6860 English or 1-800-503-3222 French) to have the appropriate calibration
applied to the VIN. The vehicle VIN must be provided to TCSC to obtain a special Vehicle
Communications Interface (VCI).
Both Regulator Assemblies/ Motors need to be replaced
– 2023 Vehicles with RPO —00X Brose Window Regulators are compatible with the
standard service motor and calibration file.
Do NOT need to replace both doors
Note: If the incorrect cal files are downloaded, then technician may find DTC B1956
“Window Motor not configured” set current or in recent history.

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.
Caution: Before downloading the update files, be sure
the computer is connected to the internet through a
network cable (hardwired). DO NOT DOWNLOAD or
install the files wirelessly. If there is an interruption
during programming, programming failure or control
module damage may occur.

•

•

•

•

Ensure the programming tool is equipped with the
latest software and is securely connected to the
data link connector. If there is an interruption
during programming, programming failure or
control module damage may occur.
Stable battery voltage is critical during
programming. Any fluctuation, spiking, over
voltage or loss of voltage will interrupt
programming. Install a GM Authorized
Programming Support Tool to maintain system
voltage. Refer to www.gmdesolutions.com for
further information. If not available, connect a fully
charged 12V jumper or booster pack disconnected
from the AC voltage supply. DO NOT connect a
battery charger.
Follow the on-screen prompts regarding ignition
power mode, but ensure that anything that drains
excessive power (exterior lights, HVAC blower
motor, etc) is off.
Please verify that the radio time and date are set
correctly before inserting USB drive into vehicle
for programming, otherwise an error will result.

Bulletin No.: 21-NA-184
•

January, 2024

Clear DTCs after programming is complete.
Clearing powertrain DTCs will set the Inspection/
Maintenance (I/M) system status indicators to NO.
Important: The service technician always needs to
verify that the VIN displayed in the TLC left side drop
down menu and the top center window match the VIN
plate of the vehicle to be programmed prior to using
Service Programming System 2 (SPS2) for
programming or reprogramming a module.
• For the TLC application, service technicians need
to always ensure that the power mode (ignition) is
“ON” before reading the VIN from the vehicle’s
VIN master module and that they do not select a
VIN that is already in the TLC application memory
from a previous vehicle.
• If the VIN that shows up in the TLC top center
window after correctly reading the VIN from the
vehicle does not match the VIN plate of the
vehicle, manually type in the VIN characters from
the vehicle VIN plate into the TLC top center
window and use these for programming or
reprogramming the subject module with the
correct vehicle VIN and software and/or
calibrations.
• The Engine Control Module (ECM) is the master
module (for VIP vehicles) that TLC reads to
determine the VIN of the vehicle. If the VIN read
from the vehicle by TLC does not match the VIN
plate of the vehicle, the ECM also needs to be
reprogrammed with the correct VIN, software and
calibrations that match the vehicle’s VIN plate.
• The Body Control Module (BCM) is the master
module (for GEM vehicles) that TLC reads to
determine the VIN of the vehicle. If the VIN read
from the vehicle by TLC does not match the VIN
plate of the vehicle, the BCM also needs to be
reprogrammed with the correct VIN, software and
calibrations that match the vehicle’s VIN plate.

Page 3

Page 4

January, 2024

Bulletin No.: 21-NA-184

Caution: Be sure the VIN selected in the drop down
menu (1) is the same as the vehicle connected (2)
before beginning programming.

5743643

Important: If the vehicle VIN DOES NOT match, the
message below will be shown.

5877000

Bulletin No.: 21-NA-184

January, 2024

Page 5

5644477

Important: Techline Connect and TIS2WEB screens
shown above.
Important: If the same calibration/software warning is
noted on the TLC or SPS Summary screen, select OK
and follow screen instructions. After a successful
programming event, the WCC is located in the Service

Programming System dialogue box of the SPS
Summary screen. No further action is required. Refer to
the Warranty Information section of this bulletin.
1. Verify the build date of the vehicle for the correct
cal files then reprogram the Body Control Module.
Refer to K9 Body Control Module: Programming
and Setup in SI.

Page 6

January, 2024

Bulletin No.: 21-NA-184

5644478

Note: The screenshots above are an example of
module programming and may not be indicative of the
specific module that is being programmed. Module
selection and VIN information have been blacked out.
Important: To avoid warranty transaction rejections,
you MUST record the warranty claim code provided on
the SPS Warranty Claim Code (WCC) screen shown
above on the job card. Refer to callout 1 above for the
location of the WCC on the SPS screen.
2. Record the SPS Warranty Claim Code on the job
card for warranty transaction submission.

Bulletin No.: 21-NA-184

January, 2024

Page 7

Parts Information
Causal Part

Description

Front Door
LH

X

Brose Window
Regulator
Electronics for
2021
Model Year

X

Continental
Window
Regulator
Electronics for
2021
Model Year

X

Bosch Window
Regulator
Electronics
for 2022

X

Continental
Window
Regulator
Electronics
for 2022

X

Brose Window
Regulator
Electronics
for 2022

X

Bosch WIndow
Regulator
Electronics
for 2023

X

Brose Window
Regulator
Electronics
for 2023

RH

RPO

86791280
&AEF
&AXG

LH
RH

&00W

&00X

&00W

85564266

85568145

86791279

&00X

85569747
86791280

-00X

86791279

1
1

1
1

85569795

1
1

85564266

84951245
(Chevy, GMC)
85112194
(Cadillac)

85569746

LH
RH

85569747

86791280
-00W
-00X

LH
RH

85543165

Qty

1

85568144

LH
RH

84951244
(Chevy, GMC)
85112189
(Cadillac)

85569746

LH
RH

86791279

Calibration
File

85543164

LH
RH

Part Number

1
1
1
1

85637881
84985418
(Chevy, GMC)
84985419
(Cadillac)

1
1
1

Page 8

January, 2024

Warranty Information
For vehicles repaired under warranty, use:
Labor
Operation

Description

Labor Time

Use
Published
Body Control Module
Labor
2810215*
Reprogramming with SPS
Operation
Time
Important: *To avoid warranty transaction rejections,
carefully read and follow the instructions below:

6125814

•
•

The Warranty Claim Code must be accurately entered
in the “Warranty Claim Code” field of the transaction.
When more than one Warranty Claim Code is
generated for a programming event, it is required to
document all Warranty Claim Codes in the “Correction”
field on the job card. Dealers must also enter one of the
codes in the “Warranty Claim Code” field of the
transaction, otherwise the transaction will reject. It is
best practice to enter the FINAL code provided
by SPS2.

Bulletin No.: 21-NA-184

Bulletin No.: 21-NA-184

January, 2024

Page 9

Warranty Claim Code Information Retrieval

6125774

If the Warranty Claim Code was not recorded on the
Job Card, the code can be retrieved in the SPS2
system as follows:
1. Open TLC on the computer used to program the
vehicle.
2. Select and start SPS2.
3. Select Settings (1).
4. Select the Warranty Claim Code tab (2).
The VIN, Warranty Claim Code and Date/Time will be
listed on a roster of recent programming events. If the
code is retrievable, dealers should resubmit the
transaction making sure to include the code in the SPS
Warranty Claim Code field.
Version

4

Modified

Released August 12, 2021
Revised March 22, 2023 – Added PI, 2022 and 2023 Model Years, and correct Part
Numbers and calibrations for Window Regulators
Revised July 17, 2023 – Added the 2024 Model Year, Important Statements to contact
Techline to the Correction Section and 2 part number changes.
Revised January 11, 2023 – Added the 2021–2023 Chevrolet Tahoe and Suburban.

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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