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Discussion Starter · #1 ·
This one has me stumped…

Every time I start my ‘09 ESV, I get three rapid horn beeps. Specifically when the key is turned to the ACC mode. I’ve looked everywhere for an answer but find nothing.

What I’ve gathered so far is that the issue is probably related to the security system and/or key fobs. But most people report it happens when they leave the vehicle. Mine honks only when I turn the key to ACC mode.

Any help is appreciated.
 

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09 Escalade ESV Platinum
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It’s a guess but sounds like there’s a delay in the truck recognizing the chip in the key. Obviously it wouldn’t stay running if it wasn’t shaking hands with the chip but it’s definitely not happy.

Do both sets of keys do it?


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Wondering if there was an aftermarket alarm in this truck at some point. Time to pull the lower knee panels and find out!
 
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