When i turn on my headlights my horn honks and my windshield wipers turn on including spray. along with this my cruise control stopped working and my park brake light comes on even though the park light is not on. all these problems came at the same time.

There could be a fuse or relay issue since multiple systems became inoperative simultaneously. I'd suspect that when the alarm went off, someone targeted and disabled the horn system so that it wasn't honking inside the repair facility. Both the horn switch and cruise control switch are located in the steering wheel and therefore they share common components and circuitry. Try checking under-hood fuses #7 (7.5A), #13 (20A), #15 (40A) and #20 (40A), as well as under-dash fuses #7 (7.5A) and 21 (7.5A). If all these fuses are OK, much deeper diagnosis will need to be performed. One somewhat common failure item is the spiral cable (also called a clock spring) that transfers power to the steering wheel (while allowing it to turn). That part can be seen within the steering angle replacement procedure shown here: https://www.yourmechanic.com/article/how-to-replace-a-steering-angle-sensor-by-marvin-sunderland

Sounds like the multifunction switch has failed.

Blown fuse? Check the fuse box in the car. There may be another fusebox under the bonnet.

More than likely a short in the headlight/ turn signal assembly that is going to ground in the steering colum.

Are they all on the turn signal arm

Could be a relay, but i advise you to take the car to an electrical shop to check the all system by the squematic delectrical diagram. Is has to be a short in some circuit. sammyc47

The turn signal combination switch is bad,replace it to repair the problem.

May want to look at replacing the wiper circuit board.It is located on the firewall adjacent to the wiper motor and has a some what square black cover with 3 torx screws and wireing harness pluged into the side.We had a truck that every time you washed it the wipers would stay on until it dryed out.You can try removing it and spaying it down with contact cleaner just watch the brease on the two contact tips.Well hope this helps.

WHEN THE HORN IS GOING OFF PUT A GROUND WIRE TO THE BODY OF THE HORN IF THIS STILL HAPPEN CHECK YOUR HORN SWITCH IN THE STEERING IT MAY BE STIKING OR THE WIRE MAY HAVE SHORTS

Sounds like a bad body control module. Take it to the dealer to have them check and confirm.