Car honking
 

My 2002 Toyota Camry honks when cold. Really! I especially notice during the night, the car will honk, 3 quick chirps, then quits. I am sure my neighbors hate me by now. I especially notice when it is cold, which has been almost every night recently. It has gone of at 7:30 a.m., 6:30, a.m. Last night it went off at 2:30 a.m. It just went off again, a few minutes ago.
Any ideas??

Does the car have an alarm system, perhaps dealer installed?

It does have a pre-installed alarm.

The chipping is most likely the alarm system.

The cold temps may be causing an alarm sensor to trigger. The sensors, car body, etc may be shifting a little due to the cold temps. If the car has a glass breakage sensors it might? be set too sensitive.

Thanks so much!!