20NA119

Service Bulletin
Bulletin No.:
20-NA-119
Date:
April, 2021
TECHNICAL
Subject:
Radio Software Version 34.9.2 and 46.1.6
Brand:
Model:
Chevrolet
Bolt EV
Model Year:
Breakpoint:
from
to
from
to
2019
2020
SOP
Built Prior to
February
5, 2020
Engine:
Transmission:
All
All
Involved Region or Country
North America, Middle East, Brazil, GM Korea Company
Additional Options (RPOs)
Equipped with BYOM2+ Radio (RPO IOB)
Condition
Some customers may comment on software issues. A continuous improvement software
update is being released with updates made on the following areas: Display, Audio,
Android Auto, Energy Assist, and other general system improvements. Improvements
vary by model year and they include:
• Model Year 2019: (software version 34.9.2)
– Radio screen black/freezes after boot up.
– No radio audio for key cycle.
– No radio audio when using Android Auto.
– Energy Assist connection terminates.
• Model Year 2020: (software version 46.1.6)
– Radio low power mode wakes up when using steering wheel audio controls.
– Favorites selection resets to top of list.
– Camera icon not functioning when in Drive and Park when on a Bluetooth call.
– Energy Assist connection terminates.
Cause
The cause of the condition may be software anomalies.
Correction
A new radio software update is being released for vehicles built prior to February 5, 2020
and equipped with Infotainment system RPO IOB, to provide general robustness and
stability enhancements.
Service Procedure
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.
•
•
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
Copyright 2021 General Motors LLC. All Rights Reserved.
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.
• 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.
• 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.
Page 2
April, 2021
Bulletin No.: 20-NA-119
5743643
5644477
Bulletin No.: 20-NA-119
April, 2021
Page 3
5431207
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.
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.
Page 4
April, 2021
Bulletin No.: 20-NA-119
5644478
5431209
Bulletin No.: 20-NA-119
April, 2021
Page 5
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.
Note: use a USB 2.0 flash drive with a minimum
capacity of 4 GB.
Update Procedure Using TIS2WEB (USB
Download)
1. Reprogram the radio through USB update. Refer to
A11 Radio: Programming and Setup in SI and
download the files needed to a USB drive using
TIS2WEB.
2. Insert the USB stick into the USB receptacle in the
vehicle and follow the on-screen instructions.
Model Year 2019:
5612551
Page 6
April, 2021
Bulletin No.: 20-NA-119
Model Year 2020:
5612555
Bulletin No.: 20-NA-119
April, 2021
Page 7
5612559
5612556
Page 8
April, 2021
Bulletin No.: 20-NA-119
3. After the update has completed successfully, the
radio will restart and show the following screen.
5612563
Important: TIS2WEB screen shown. Techline Connect
screen is similar and will be included soon.
Important: To avoid warranty transaction rejections,
you MUST record the warranty claim code provided on
the SPS Warranty Claim Code (WCC) screen on the
job card. Refer to callout 1 above for the location of the
WCC on the SPS screen.
4. Record the SPS Warranty Claim Code on the job
card for warranty transaction submission.
Parts Information
No parts are required for this repair.
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
2887208*
Description
Labor Time
Radio Reprogramming with
SPS for version 34.9.2
and 46.1.6
0.3 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.
Bulletin No.: 20-NA-119
April, 2021
Page 9
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 TIS on the computer used to program the
vehicle.
2. Select and start SPS.
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 31, 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.
WE SUPPORT VOLUNTARY
TECHNICIAN
CERTIFICATION