2023 Suburban - Interior Alarm/Siren Sound

[kevshoe]

Need some help. 2023 Suburban with about 4,000 miles (RST trim). No issues to date but this morning my wife started it up and the second she put it in reverse and started backing out of the garage, a siren started sounding but only inside. No horn or blinking lights, nothing in the display...just the alarm sound coming from the speakers inside. When she would stop and put it in park, it would stop. I had her shut it off and lock/unlock the doors. As she was getting ready to back out, she said it sounded like it was going to do it again but I called at that exact moment (I was in the house on a work call) and everything worked fine after that.

Any ideas on what it could have been or what I should do (I'm thinking I'll probably disconnect the battery for a bit when she gets home tonight just to reset everything.

Thanks in advance for any feedback.

 

[chrisbusnut]

Could it have something to do with the parking sensors or rear approaching side traffic sensor? That's the only sound I've ever heard coming from the interior speakers.

 

[kevshoe]

I thought about that and the sensor usually does sound when we are backing out, but this sound was something completely different. Almost sounded like a car alarm from back in the 90's but coming out from the speakers (I wasn't there but could hear it from a camera I have in the garage). It would 'sound' for about 3 seconds, pause for 3 seconds and then sound for 3 seconds over and over until she put it in park.

 

[UsualSuspect]

Someone recorded something similar, is this the sound?

Strange alarm at start up

Hi all, Brand new to the forum and new (used) 2015 Yukon owner (about 2 weeks). I owned a 2009 hybrid Tahoe that died on me (transmission) but am still trying to figure out all the bells and whistles on the gmc. So this leads me to my question. What in the heck is this alarm sound? I swear it...

www.tahoeyukonforum.com

 

[Baja_Bob]

Was there any message or warning showing in the driver info screen during this sound?

 

[kevshoe]

That sound is damn close to what it was. It's been a while but it wasn't a normal "gm" sound. Nothing was shown in the driver info screen while it was happening. Heading out to go through the Suburban with a fine tooth comb to see if there is some ******** going on that I'm not aware of.

 

[Silverado4x4]

Need some help. 2023 Suburban with about 4,000 miles (RST trim). No issues to date but this morning my wife started it up and the second she put it in reverse and started backing out of the garage, a siren started sounding but only inside. No horn or blinking lights, nothing in the display...just the alarm sound coming from the speakers inside. When she would stop and put it in park, it would stop. I had her shut it off and lock/unlock the doors. As she was getting ready to back out, she said it sounded like it was going to do it again but I called at that exact moment (I was in the house on a work call) and everything worked fine after that.

Any ideas on what it could have been or what I should do (I'm thinking I'll probably disconnect the battery for a bit when she gets home tonight just to reset everything.

Thanks in advance for any feedback.

https://www.gm-trucks.com/forums/topic/266536-24-1500-with-a-alarmalert-sound-help-identifying/

Sounds just like your sound, hope this helps.