PIT5790C

Service Bulletin Details

Public Details for: PIT5790C

This preliminary information communicates a concern where the radio will reboot when adjusting the volume intermittently and that engineering is investigating.


- 2022 - 2021 - 2020 - 2019 -

Bulletin No.: PIT5790C
Published date: 09/21/2021
Preliminary Information
PIT5790C Radio Resets Or Reboots And Then Displays myBrand Splash Animation
Models
Brand:
Model:
VIN:
Model Years:
from
Engine:
to
Transmissions:
Cadillac
CT6
2019
All VINs starting with LSG
All
All
All
Cadillac
CT6
2019 - 2020
All VINs starting with 1G6
All
All
All
Cadillac
XT4
2019
All
All
All
All
Chevrolet
Blazer
2019
All
All
All
All
Chevrolet
Camaro
2019
All
All
All
All
Chevrolet
Colorado
2019 - 2022
All
All
All
All
Chevrolet
Equinox
2019 - 2021
All
All
All
All
Chevrolet
Malibu
2019 - 2020
All
All
All
All
Chevrolet
Silverado
2019
All
All
All
All
Chevrolet
Volt
2019
All
All
All
All
GMC
Canyon
2019 - 2022
All
All
All
All
GMC
Sierra 1500
2019
All
All
All
All
GMC
Terrain
2019 - 2021
All
All
All
All
GMC
Acadia
2019
All
All
All
All
Involved Region or Country North America, Europe, Russia, Middle East, Israel, Palestine, Argentina, Brazil, Chile, Colombia, Ecuador, Paraguay, Peru,
Uruguay, Japan, Cadillac Korea (South Korea), GM Korea Company, China, Thailand, Australia/New Zealand, Egypt, Africa
Additional Options (RPO)
Equipped with IOS, IOU, or IOT
Some customers may comment that at times, usually when changing the radio volume with the volume knob or steering
wheel controls, that the radio resets or reboots itself and that the myBrand Splash Animation (the animation that usually
only occurs at startup) plays.
Condition
Other symptoms may occur immediately prior to the reboot might include an echo in a Bluetooth phone call that eventually
drops the call to the handset, or the radio may be non-responsive to touch or hard button inputs.
This condition seems to occur much more frequently while CarPlay is in use, but a reset can also occur outside of CarPlay
use, with other device brands, or with no device connected.
While the condition is very intermittent and di cult to reproduce, when this condition occurs it will always end in the radio
doing a hard reset or reboot resulting in the splash animation playing again.
Cause
This condition may be induced by externally connected devices or by software anomalies.
Correction
Engineering has identi ed possible causes of this condition and are working on software enhancements to resolve this and other possible
software anomalies.
Service Procedure:
Note: A hard reset is when the radio shuts down and reboots displaying the myBrand splash animation (just as the radio does when the ignition is
rst turned on). Similar, but unrelated symptoms could occur with a soft reset. Those are NOT related to this PI. A hard reset occurs quickly,
generally in a matter of seconds, not lasting longer than one minute. A soft reset occurs when the radio seems to shut o , but resets to the
previous display page. It may show a working / thinking / scrolling circle as it resets, but it will not show splash animation in a soft reset.
This PI ONLY applies if the symptoms are immediately followed by a hard reset with splash animation.
Con rm with the customer that this condition exhibits a hard reset with splash animation. Please document any speci cs of what was being done
prior to, or led up to, the symptoms beginning and submit a Field Product Report with that information.
If it occurs at any other time, or if there is not a hard reset, then this PI does not apply and the technician should continue their diagnosis of the
customer’s concerns.
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
3487178
Radio resets when volume is changed
*This is a unique Labor Operation for Bulletin use only.
Version History
Version
4
Modi ed
11/05/2020 - Created on.
12/17/2020 - Updated to add model years.
06/10/2021 - Updated to clarify concern.
09/20/2021 - Updated to cause and service procedure
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