Radio Resets Or Reboots And Then Displays myBrand Splash Animation – 2019-2021 Cadillac Chevrolet GMC

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Bulletin No.: PIT5790C Published date: 09/21/2021 Preliminary Information PIT5790C Radio Resets Or Reboots And Then Displays myBrand Splash Animation Models Brand: Cadillac Cadillac Cadillac CT6 CT6 XT4 Model: Model Years: 2019 2019 – 2020 2019 VIN: from to All VINs starting with LSG All All VINs starting with 1G6 All All All All All All Engine: All All All Transmissions: Chevrolet Chevrolet Chevrolet Chevrolet Chevrolet Chevrolet Chevrolet GMC GMC GMC GMC Blazer Camaro Colorado Equinox Malibu Silverado Volt Canyon Sierra 1500 Terrain Acadia 2019 2019 2019 – 2022 2019 – 2021 2019 – 2020 2019 2019 2019 – 2022 2019 2019 – 2021 2019 All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All All Involved Region or Country Additional Options (RPO) 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 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 Condition Cause wheel controls, that the radio resets or reboots itself and that the myBrand Splash Animation (the animation that usually only occurs at startup) plays. Other symptoms may occur immediately prior to the reboot might include an echo in a Bluetooth phone call that eventually 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 diffcult 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. This condition may be induced by externally connected devices or by software anomalies. Correction Engineering has identified 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 first 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 off, 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. Confirm with the customer that this condition exhibits a hard reset with splash animation. Please document any specifics 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 .3 Hr. *This is a unique Labor Operation for Bulletin use only. Version History Version 4 11/05/2020 – Created on. 12/17/2020 – Updated to add model years. Modified 06/10/2021 – Updated to clarify concern. 09/20/2021 – Updated to cause and service procedure
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