Bulletin No.:

Service Bulletin

Date:

21-NA-058
March, 2021

TECHNICAL
Subject:

Radio Software Version 382 Update

Brand:

Model:

Cadillac

Escalade
Escalade ESV

Model Year:
from

to

2021

2021

VIN:
from

Engine:

Transmission:

to

Involved Region or Country

United States, Canada, Mexico, Europe, Russia, Middle East, Japan, Korea

Additional Options (RPOs)

Equipped with Infotainment System IOV

Condition

Some customers may comment on software issues. A continuous improvement software
update was released with updates made in several areas. In addition to providing general
robustness and stability enhancements, this update includes all enhancements from
previous software version releases. Version 382 contains over 40 improvements. Refer to
Version 382 Most Notable Improvements section below.

Cause

The cause of the condition may be software anomalies.

Correction

Reprogram the A11 Radio software via USB.

Important: Improvements will vary by model, build
configuration, system, and sales region. Not all
vehicles have all features.
Version 382 Most Notable Improvements
• Album art mismatch between IPC and Radio
• Song metadata mismatch between IPC and Radio
• Intermittent blank or black radio display screen
and radio reboots
• Now Playing icon animation may freeze if station
list is changed frequently while in a bad
signal area
• Radio switches back to Sirius XM when
attempting to change source from SXM to Apple
CarPlay
• When selecting new activity such as Browse,
Direct Tune, Setting, the control animation occurs
twice
• Delayed ability to change volume with
multifunction control until volume popup
disappears
• Holding the steering wheel controls volume up or
down causes volume popup to flicker
• Double letters, or blank spaces might appear in
the alphabetic index
• Pressing any hard button on the multifunction
controller cancels an active Advanced Parking
Assist event requiring the user to repeat seeking
the parking space
• The TTY keyboard disappears when vehicle goes
into motion during an OnStar SuperCruise call
Copyright 2021 General Motors LLC. All Rights Reserved.

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Multifunction control knob is inoperative after
using tilt, then swipe to remove Coach mark
screen. Operation is recovered by pressing
multifunction control “Back” button
Instrument cluster incoming phone call information
may disappear after accepting the incoming call
using steering wheel controls
Unable to view WiFi Hotspot SSID name and
password while the vehicle is being driven
After creating Trailer Profile while vehicle is still in
demo mode the Trailer Profile does not
synchronize with back office when vehicle state
is Demo
After creating Trailer Profile on a vehicle that
exited Demo mode, the next ignition cycle may
display Error code 401
The Vehicle Info – Air Filter Life “Check system”
text may overlap with the gauge image for
Spanish (Mexico), Italian (Italy), and Dutch
(Netherlands) languages
The Instant Fuel Economy progress bar remains
highlighted during an active Auto Stop event.
Navigation app may reset if user entered
destination with myBrand app
Sending a message in Android Auto, audio may
not return to previously playing source, instead
switching to Sirius XM
Scrolling through Favorites pages and it may
revert to currently playing favorite very
intermittently
Unable to exit the Enter PIN page when using the
multifunction control Back button or left tilt

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March, 2021

Radio may change to SXM source at ignition on
when XM was not the source in previous ignition
cycle
Mute icon may not appear properly after ending a
phone call
If CarPlay is muted and Source is changed, it
switches back to CarPlay as source
IPC displays previous source album art after using
Voice Recognition (VR) to change Source
Favorites may be skipped over randomly when
using multifunction control knob going from page 1
to 2
May display contacts still loading prompt even
though the contact download has already been
completed
Apps may blink if multifunction control is used
when vehicle begins to move or as OnStar WiFi
Hotspot changes state
CarPlay screen may stop or not display song
metadata when connected via wireless projection
Navigation may not reroute skipped steps unless
user clicks go back button directly from the
navigation which was not being implemented
Navigation may not function properly if switching
user profiles during an active navigation route
(non-GMNA) With Korean language selected, the
alphabetic index displays as consonants and
vowels, not consonants only (example: Ac, Ai,
Aok, Au, Bc, Bo,... instead of A, B, C, D, E, F,...)
(non-GMNA) Korean font size of subway exit
numbers are different
(Non-GMNA) Korean Navigation map Zone Alerts
(speed bump, school zone, etc.) may not clear
after passing the zone area
(Non-GMNA) Some Arabic text may be cutoff or
truncated due to text display area size
(Non-GMNA ) In right-hand drive countries the
roundabout user interface has issue with right
steering wheel image

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Bulletin No.: 21-NA-058
(Non-GMNA) Korea nav app has localized logic
for showing School Zone alert to maintain showing
until entering the zone. If school zones are side by
side a second alert might not play for the second
zone because the system believes it is still in the
previous school zone.
Rarely, navigation guidance information in cluster
does not match radio or HUD, which are showing
correct navigation information
Rarely, if navigation is dismissed in the
background the Arrival will remain on cluster
and HUD
Rarely, when typing a destination on the keyboard
as vehicle begins to move the system gets stuck
in a loop
Rarely, when using voice recognition to change
SXM channel, the metadata shows correct
channel, but audio is playing from a different SXM
station
Rarely, CarPlay may have periodic dropouts; or
disconnect during a drive cycle and not
auto-reconnect due to switching from 2.4GHz to
5GHz WiFi signal
Rarely, while on a call and ignition is then turned
on there could be a failure of CarPlay auto
connect.

Service Procedure
Important: It is important to ensure that the technician
is inspecting the full information found within Build
Number. To identify the current software installed in the
radio requires the user to locate the Build Number to
view the full software version file name. In the middle of
this long file name look for 382. (The illustration below
shows software version 377, thus that would be
outdated.) The number would be numerically lower if
the radio is not up to date, or numerically higher if
newer versions were released and installed.

Bulletin No.: 21-NA-058

March, 2021

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5766434

Preliminary TLC Preparation
Caution: As of March 1, 2021 a change was made in
the way the radio software package checks battery
state of charge (SOC) prior to installation; however, the
technician will have to take action in Techline Connect
(TLC) to ensure the change is installed in the radio.
Please follow preliminary TLC preparation steps below,
this is only required to be performed once per TLC
machine. It is NOT necessary to repeat this step for
every programming event unless a different computer is
being used that has not yet had TLC Local Cache
cleared sometime after March 1, 2021.
These preliminary TLC preparation steps may eliminate
difficulties related to a message of “Conditions not
ideal...” when attempting to program the radio when the
not ideal condition is related to battery state of charge.
1. Log into TLC.
2. Clear Local Cache. Select Settings>Local Cache
tab>Clear
Radio Programming
1. Inspect the current radio software version.
Navigate to Settings -> About -> Build Number to
view and verify the software version.
• If equal or greater than 382, this bulletin does
not apply. Refer to SI for diagnostics.
• If less than 382, update the radio software via
USB. Refer to A11 Radio: Programming and
Setup in SI.
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.

Note: Carefully read and follow the instructions below.
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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.
• Ensure the ignition is turned OFF, load on the
vehicle’s battery such as; interior lights, exterior
lights (including daytime running lights), HVAC,
etc. may affect the download process.
• Please verify that the radio time and date are set
correctly before inserting USB drive into vehicle
for programming, otherwise an error will result..
• Clear DTCs after programming is complete.
Clearing powertrain DTCs will set the Inspection/
Maintenance (I/M) system status indicators to NO.
Caution: Be sure the VIN selected in the drop down
menu (1) is the same as the vehicle connected (2)
before beginning programming.

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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 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 section of the bulletin.

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.
1. Reprogram the radio. Refer to A11 Radio:
Programming and Setup in SI.

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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 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

9700007

Verify Radio Is On Currently Available software version

0.3 hr

*9700023

Radio Reprogramming with SPS / USB

2.2 hr

Important: *To avoid warranty transaction rejections, carefully read and follow the instructions below:
• The 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 March 11, 2021

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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