Key will not disengage,it will release only when i disconnect battery and my horn will not stop blowing

Does your key remote work? Try pressing the unlock button when the horn goes off. Try cycling the key in the ignition. Also check the horn buttons on the steering wheel. They tend to stick on.

turn the key on disconnect the negative battery cable then disconnect the positive then hold down the breaks or hit the horn until it stops blowing or you cant see the break lights any more then wait 15 minutes for computers memory to clear then turn the key off and hook your battery back up and start vehicle computer should be reset. make sure to hit either brakes or horn cars store a small amount of electricity even after the battery is unhooked

I verify its not a stuck relay...

I disconnect connector under dash and horn stops...

I then suspect its the Horn contacts or a worn grounded wire in air bag/horn switch assembly in steering wheel.

The decorative Vinyl cover shrinks with age...presses on horn contacts against air bag.

I Disconnect Air bag connector (identified as Yellow wire and Connector) usually under dash.

WARNING: ( I Do not - I DO NoT probe the yellow harness/connector with a meter or test light. A test light WILL Detonate my air bag, and impale the bracket in a nearby object/person - me.)

I Removed screws (2) behind steering wheel - which allow air bag horn assembly to be removed.

I Disconnect Air bag connector in this location as well (identified as Yellow wire and Connector) and then;

The red (color varies) and black Horn wires will be plugged into ribbon connectors usually (2) two that feed/connect to contacts for horn function on face of air bag.

I pause here and verify horn will stop blowing when I disconnect the wires going to horn contacts. So I get horn blowing again...

Check horn: To verify this is the cause; I reconnect (whatever fuse/relay/ connector (Not the airbag connector) I disconnected so they will stop blowing) and get horn/s so they are blowing again...

Then I disconnect the ribbon connectors to verify blowing stops.

Note: The experience I had with horn on

Buick Park Ave was at night when temperature cools after hot day, the vinyl cover shrank and horn blows... pressing on horn area of steering wheel firmly would stop horn briefly - then continue.

Note: I will need a rivet tool and rivets... to reassemble.

WARNING: I Do not drill into airbag explosive container. If I do not know how to carefully drill off correct rivet heads and remove vinyl decorative cover from air bag/horn... I STOP and go to the junkyard or ebay and purchase/replace the airbag/horn assembly.

I continued by drilling out rivets (the rivets holding vinyl cover) by using a drill bit as large (or smaller) as the head of rivet and drill gently to release head from rivet body/shank.

I mark all pieces with a magic marker to verify I reassemble right side up (all metal brackets and trim plates and cover).

I Remove vinyl cover exposing horn contact pads which were sandwiched between cover and air bag container.

I used a razor blade to remove vinyl honeycomb material from area of vinyl cover - that when pressed - would activate horn/contacts.

Only a 1/16 of an inch or less needs to be removed.

(I Bend cover inside out and shave material off of area slowly. Care not to cut myself.)

I Reassemble in reverse order with rivets.

Check horn: ...function at this point... by plugging in horn connectors and assure horn contacts work properly as expected.

sounds like there's a short in your wiring in the steering column, A lot of times with a tilt wheel a wire get loose or gets a short in it. the steering wheel may have to come off to fix the problem but make sure to disconnect the airbag first, I'm not sure what vehicle you have so I don't know where to tell you to look for the connection, may be best to take to a dealership if possible. Hope this helps.

when the horn starts to honk just put the key in the ignition and turn the car to on, you can also use the key to lock and unlock the drivers door, you are activating the security system by disconnecting the battery doing the above disarms it, if it still won't disarm then you need to see the dealer on this problem

replace the horn relay;or the horn button on the steering wheel is grounded and energizing the horn. any maintenance involving the steering wheel can be dangerous becaus of the air bag. if you just want to stop the horn, remove the relay, probably located in the fuse box under the hood. check the manual for location, but if your state has a safety inspection it will need to be fixed before the inspection is due

dont you have the alarm key fob? if so that will reset it. just press unlock. If you dont an dits not a OEM Acura alarm you will need to find who makes it and get a new key fob, or have a shop that does alarms to disconnect it.

wiggle the horn on the colum if it stops then the spring on the horn pad has gone bad