1998 cadillac, the horn just went off 3am in the morning, would not stop..until I pushed on the steering wheel part of the horn..car was locked..I had to get out of bed to stop it! WHY WOULD IT JUST GO OFF?

Question edited for clarity and correct spelling of the model.

Horn button removal - Enthusiast forums for Cadillac Owners

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Jul 6, 2021 - Cadillac PininFarina Allante - Horn button removal - I have a 1989 Allante ... The first step is to remove the horn button on the steering wheel.

Steering Wheel Removal

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Jan 2, 2007 - Make sure your wheels are straight. Behind the horn pad should be some screws(2). Take them out. The horn pad should lift up, watch out for the ...

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Security engaged, Lock and unlock doors with key until horn stops.

getur owners book or go to part store n buy a haynes mech manual

It is really very simple. The horn lead with the plastic connector and the spring pushes in and turns to lock in the large round hole at the upper left center of the steering wheel. If you look into the hole, you will see the contact down in there with a plastic "tube" with a slot in it for the horn connector to go into.

The ground clip (wire with brass or steel clip on it) simply pushes into the hole in the steering wheel center near the bottom (It grounds to the steering wheel center).

You most likely have a broken wire under your steering wheel horn push housing and it's grounding itself during rotation of steering wheel , it may also be a spring broken on the horn push assy and the columb assy may be worth a peep . Good luck

The horn works by earthing, normally done by you pressing switch, if the horns wire or the internally creates a contact to earth(chassis) your horn will sound. Take your switch apart on you steering wheel & give it a clean.
Hope this helps, if not, remove wire at horn end, leaves you with no horn but peaceful nights.
Have a nice day.

WIRE GOING UP INSIDE STEERING WHEEL HAS PROBERLY BROKE AND SHORTED OUT

I sort of had this problem last year with my 1991 Protege (and may again when the weather gets cold). Your metal contacts in the horn compartment of your steering wheel are touching. They most likely melted a little in a heat wave and then with a sharp cold, probably an overnight chill, they contracted, causing them to touch. My horn tended to go off while I was driving, thanks to potholes and a high idle making my car vibrate while stopped at lights (very embarrassing!).

You may be able to bend the metal a little after you disassemble the steering wheel front (disconnect the battery first), but you will have to find where on the pad the foam has worn out. You can remedy the problem with your own pieces of foam stuck in where the metal is close together or can cut out a new foam pad with supplies from a craft store. Repair shops may charge close to $100 to replace this pad (it's glued on I think and wears away like an exposed seat cushion over time).

step 1.Remove steering wheel horn cover
step 2.Remove steering wheel retaining nut (disconect airbag if so equipped)
step 3.Using moderate force remove wheel from steering column
step 4.Discard vehicle (donate,push off cliff,leave on train tracks,ect)
step 5.Purchase new vehicle (preferably a non-lemon)
step 6.Swap steering wheel with one from step 3
step 7.Enjoy the feeling of having "fixed" your auto troubles