No headlight warning buzzer

I've had my ORP for a week and just noticed that when I removed the key and exited the vehicle with the headlights on, there was no warning buzzer. I only noticed they were on when I went to open the liftgate and saw the license plate lights on.

Should there be a warning buzzer? Is this a programmable option, or a fault that the dealer should repair?

Thanks...

 

not sure bout warning sound huy lights should stay on for a few min then off or when you lock your vehicle. it's a safety thing.

 

yep, second press of the lock button on the fob and they turn of, or if you leave it alone for a minute or two

 

Thanks for the replies...I finally managed to find it in the manual (it mentions auto off, but doesn't specify presence or absence of a buzzer or alarm).