warning buzz sound from infotainment system; 2021 GMC 1500 Sierra Denali

[WickTed]

I am new here and  my 2021 GMC Sierra 1500 Ultra Denali 6.2l Carbon Pro is making strange sound busy signal buzzing sound from dash near the infotainment system.  I am from Florida and travelling through Canada and Alaska.  Somewhere near 58 latitude a "busy signal" style buzzing from the infotainment system started sounding.  Immediately stopped and tried to assess what could be causing and during the search, the sound ceased.  Now it comes on intermittently or when I start the vehicle and quits after a few mins.  It will restart and quit.  Today, I opened the DS door and the buzzing was going on while the vehicle was off? I am guessing this might be some kind of warning from the security system or unavailable satellite reception? Any one that has had this issue diagnosed please let me know suggested solutions?  I will try to get the truck to a dealer when I get close to Anchorage in a few days.  Thanks.

[GMCustomerService]

On 7/25/2022 at 12:29 PM, WickTed said:

I am new here and  my 2021 GMC Sierra 1500 Ultra Denali 6.2l Carbon Pro is making strange sound busy signal buzzing sound from dash near the infotainment system.  I am from Florida and travelling through Canada and Alaska.  Somewhere near 58 latitude a "busy signal" style buzzing from the infotainment system started sounding.  Immediately stopped and tried to assess what could be causing and during the search, the sound ceased.  Now it comes on intermittently or when I start the vehicle and quits after a few mins.  It will restart and quit.  Today, I opened the DS door and the buzzing was going on while the vehicle was off? I am guessing this might be some kind of warning from the security system or unavailable satellite reception? Any one that has had this issue diagnosed please let me know suggested solutions?  I will try to get the truck to a dealer when I get close to Anchorage in a few days.  Thanks.

This is certainly not what we like to hear, WickTed.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2021 GMC Sierra 1500 Ultra Denali. To do so, please send an email to [email protected] with ATTN: WickTed/GM Trucks in the subject line.

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[WickTed]

Further research has shown the warning buzzing sound is from a dash cam with a full SD card.