We just purchased a 2010 V6 Automatic, The horn chirps once when you lock the car from the remote & twice when u unlock. I thought you had to press the lock button twice before the audible chirp happened, but not the case here. Also after turning off the ignition and opening the door the horn chirps twice. Is this normal? I have searched for a way to change the settings & have not been successful. Any help would be appreciated, it is a little annoying

 

Might be an aftermarket security system. My factory security system (2011) only chirps the horn once when I double lock. It will horn chirp twice if a door or hood or trunk isn't shut all the way. It never horn chirps when unlocking or opening the door to get out...……..

 

Ok, thank you, did not think this was normal, I will do more research & see if I can find a solution

 

My '13 behaves like David Young's '11.

 

Ok, Thank You!