Bulletin No.:

Service Bulletin

Date:

20-NA-111
October, 2020

INFORMATION
Subject:

Information on Normal Remote Window Operation and Radio Setting Description

Brand:

Model:

Chevrolet

Colorado
Silverado 1500 (New
Model)

GMC

Canyon
Sierra 1500 (New
Model)
Terrain

Model Year:
from

to

2019

2019

2019

VIN:
from

Engine:

Transmission:

All

All

to

2019

Involved Region or Country

Canada, Mexico, Middle East, United States

Additional Options (RPOs)

Equipped with Infotainment system (IOR) and Express Window (AXG/AEF)

Condition

Some vehicles equipped with radio (IOR) and Express Window (AXG/AEF) may have
Remote Window Operation that can open windows remotely, but they will not close
remotely.
Depending on the radio’s software version, the Remote Window Operation description as
displayed in settings of the radio may read:
“Remote Window Operation specifies if the vehicle’s windows can be remotely opened or
closed by double pressing and holding the unlock button or the lock button respectively
on the Remote Keyless Entry transmitter. ”
This description is inaccurate to the inherent operation of the Remote Window Operation
feature. These vehicles were not built with any feature to remotely close the windows.

Cause

This condition was caused by an error in the radio software that misstates the design
intent of remote window operation

Correction

The vehicle is operating as designed. The remote window operation does not allow a
user to remotely close the windows. If necessary, reprogram the A11 radio to correct the
description of this setting.

Service Procedure
Note: Performing radio programming does NOT
change the way the window operates remotely. It only
changes the description of the setting in the radio
display.
If the customer wants the wording in the description
changed, a radio software update will change it to read
“Remote Window Operation allows you to control your
windows with your remote key. See owner’s manual for
details.”
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.

Copyright 2020 General Motors LLC. All Rights Reserved.

Note: Carefully read and follow the instructions below.
•

•

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 12 V jumper or booster pack
disconnected from the AC voltage supply. DO
NOT connect a battery charger.

Page 2
•

•

October, 2020

Bulletin No.: 20-NA-111

Turn OFF or disable systems that may put a load
on the vehicles battery such as; interior lights,
exterior lights (including daytime running lights),
HVAC, etc.
Clear DTCs after programming is complete.
Clearing powertrain DTCs will set the Inspection/
Maintenance (I/M) system status indicators to NO.

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Bulletin No.: 20-NA-111

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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 on-screen instructions. The
system will generate a warranty claim code (WCC) for
documentation purposes only. Perform service
information (SI) diagnostics to determine the cause of
the condition. Use the applicable labor operation code
when submitting a warranty claim. Do NOT use the
WCC with the warranty claim submission.

Important: When programming a module in GM’s new
Vehicle Intelligence Platform, or VIP, the power mode
(ignition) needs to be off or errors may occur. This
involves the 2020 Chevrolet Corvette, Cadillac CT5 and
CT4, as well as the upcoming full-size Chevrolet, GMC,
Cadillac SUVs and Buick Envision. Serial Data
Message Authentication also needs to have the
ignition off.
Caution: You must perform both Programming and
USB File Transfer to complete this repair.
1. Reprogram the A11 radio. Refer to A11 Radio:
Programming and Setup in SI.

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October, 2020

Bulletin No.: 20-NA-111

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Bulletin No.: 20-NA-111

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Page 5

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 SPS Warranty Claim Code on job card for
warranty transaction submission.

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.
Labor Operation

Description

Labor Time

*2886838

Radio Reprogramming for Remote Window Description

0.6 hr

*This is a unique Labor Operation for Bulletin use only.
Important: *To avoid warranty transaction rejections, carefully read and follow the instructions below:
• The SPS Warranty Claim Code must be accurately entered in the “SPS 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 “SPS Warranty Claim
Code” field of the transaction, otherwise the transaction will reject. It is best practice to enter the FINAL code provided by
SPS/SPS2.

Warranty Claim Code Information Retrieval
If the SPS Warranty Claim Code was not recorded on
the Job Card, the code can be retrieved in the SPS
system as follows:
1. Open TLC/TIS on the computer used to program
the vehicle.
2. Select and start SPS/SPS2.
3. Select Settings.
4. Select the Warranty Claim Code tab.
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

1

Modified

Released October 12, 2020

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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