Q: Horn keeping blowing when key is taken out ignition.

asked by on

Good evening. Two days ago I parked my car took the key out the ignition and the horn started sounding. I started the car back up the noise stop. I took the key out again the horn started blowing again. Not knowing what to do I drove around for 5 min. Parked the car took the key out no problem. However tonite I had no luck and couldnt get the horn to stop blowing . I disconnected the terminal on battery. What is the cause of this proble?

My car has 111536 miles.
My car has an automatic transmission.

The issue is with the security system on your car. Try disarming the vehicle by holding down on the unlock function to the key fob. If the locks on the car do not work while the horn is sounding, then there could be an issue with the immobilizer system to the security system in your car. I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose your security system.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Horn keeping blowing when key is taken out ignition.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Air not cool and car overheats

The cooling fans on your vehicle are controlled by your powertrain control module through the fan relay when your vehicle gets to a set temperature. You could be having a failure of the fan relay and module. If these two...

Q: Q: Price evalutation

Hi There, According to Kelly Blue Book, this price is right in line with what the car is actually worth, assuming the car is in excellent condition. Without considering the extras he is referring to (i.e. exhaust, tires, etc.), the...

Q: Q: Ran gas out now won't start

Be sure the battery is fully charged. If you suspect low engine oil, the oil level should be checked on the oil dipstick. Of course, confirm that the engine immobilizer system (security system) is not activated thus preventing the car...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.