02 yukon denali

[mfarina]

OK you guys are going to think I am insane.....

 

here goes I was driving my Yukon to a friends house.... pulled into the Driveway.... got out ..... put my keys in my pocket and accidently hit the Horn button on they Key fob. So I went to press the horn button again to stop it from beeping but I mistakenly hit the unlock key 1st then I hit the Horn button and finally pressing the Lock button. I turned around and my Truck STARTED UP on its own and shut off after about 10 seconds ...NO I dont have a remote start(that I am aware of). I thought I was loosing it .... I stood there totally stuck on what the hell just happened.

 

I decided to see if I could recreate the problem by doing the same thing again ... and I was able to . I paid more attention to this time to the sound of it starting. It sounded different kinda like a 4 cylinder insdead of 8.

 

The funny thing I was only able to start it up like that 2 times

 

Any Ideas's ? has anyone heard of this before?