Horn sounds 3 times upon starting: Anyone else experiencing this?

[TrueAt1stLight]

Periodically I will climb in my Yukon, close the door and press the start button with the key fob in my pocket. The horn will beep 3 times in quick succession then the vehicle will start. I can't figure out what's going on here, and wondering if the vehicle isn't recognizing my key fob or if there is some other glitch going on. I don't have the alert set to beep 3 times when the key fob isn't still in the vehicle, or anything else that I can think of. Anyone else have this happen?

 

[Doubeleive]

Periodically I will climb in my Yukon, close the door and press the start button with the key fob in my pocket. The horn will beep 3 times in quick succession then the vehicle will start. I can't figure out what's going on here, and wondering if the vehicle isn't recognizing my key fob or if there is some other glitch going on. I don't have the alert set to beep 3 times when the key fob isn't still in the vehicle, or anything else that I can think of. Anyone else have this happen?

try putting a new battery in the remote fob and see if the problem goes away, that's probably it.

 

[TrueAt1stLight]

try putting a new battery in the remote fob and see if the problem goes away, that's probably it.

Thanks- will give that a try.

 

[Stbentoak]

Do the 2021’s beep/remind you and not lock if you happen to try to lock your fob inside?

 

[RugbyRef]

Do the 2021’s beep/remind you and not lock if you happen to try to lock your fob inside?

Yes sir....sure does.

 

[TrueAt1stLight]

May have figured this out. I had my profile set up for key 1 but was using key 2. I switched to key 1 and haven't had any issues with 3 beeps upon starting since. I'm guessing it has something to do with my Yukon thinking the key isn't in the vehicle due my starting it with the one not associated with my profile. I'll report back if this is the fix...

 

[Joseph Garcia]

Thank you for your update and potential solution. Much appreciated.

Please let us know when you have confirmed that your issue is solved, so that we can update our collective knowledge base.

 

[TrueAt1stLight]

@Joseph Garcia That was it! No more horn beeping 3 times on start-up now that I have the correct key fob linked under my profile. It does give the option to have both key fobs linked but I think if you were to do that, not sure how the truck would know it’s me and not my wife’s profile.

 

[Doubeleive]

@Joseph Garcia That was it! No more horn beeping 3 times on start-up now that I have the correct key fob linked under my profile. It does give the option to have both key fobs linked but I think if you were to do that, not sure how the truck would know it’s me and not my wife’s profile.

i'm confused, how would the vehicle determine that you are not the person associated with the fob?

 

[SAdude]

May have figured this out. I had my profile set up for key 1 but was using key 2. I switched to key 1 and haven't had any issues with 3 beeps upon starting since. I'm guessing it has something to do with my Yukon thinking the key isn't in the vehicle due my starting it with the one not associated with my profile. I'll report back if this is the fix...

I learned quickly that profiles are trouble. Deleted mine and my wife's a while back and merged into a single profile for the vehicle and eliminated a confusing headache.

 

[TrueAt1stLight]

i'm confused, how would the vehicle determine that you are not the person associated with the fob?

Huh. That’s a damn-good question. How DOES my Yukon know it’s me?!?

 

[B520044]

I learned quickly that profiles are trouble. Deleted mine and my wife's a while back and merged into a single profile for the vehicle and eliminated a confusing headache.

I did the same. No value in it, as I'm the primary driver.

 

[Doubeleive]

Huh. That’s a damn-good question. How DOES my Yukon know it’s me?!?

lol, did you change the battery like I suggested?

 

[TrueAt1stLight]

lol, did you change the battery like I suggested?

No, as the fob was brand new and I wasn't getting a low battery message. It resolved immediately when I switched the key fob # in my profile. I suppose I could still have a low battery in the other one and it really wasn't the profile issue but actually a low battery in the other key fob. I'll have to try it on another profile and see if that's it...

 

[Doubeleive]

No, as the fob was brand new and I wasn't getting a low battery message. It resolved immediately when I switched the key fob # in my profile. I suppose I could still have a low battery in the other one and it really wasn't the profile issue but actually a low battery in the other key fob. I'll have to try it on another profile and see if that's it...

you might also look in the DIC menu for notifications and/or in the owners manual, there is some federal mandate about the vehicle having to notify when the vehicle is exited if it is keyless (push-to-start) but this can be disabled or turned off in the DIC (supposedly)