Q: Horn malfunctioning

asked by on August 31, 2017

I have a 2015 toyota corolla and the car honks randomly when we are driving also when we come to a complete stop. All doors are closed including trunk amd hood. Last week the car wouldnt start the battery was dead we jump started it and worked fine. But its struggling to start in the mornings. Will start and then honk, and honk while we are driving. Im leaning toward replacing the battery but would this be sign of a bad battery? Will the random honking stop? This is new has never happened to me.

A number of things may cause the horn to malfunction which may cause it to randomly fail or continuously go off. The horn switch may be faulty or can short circuit causing this to happen. The horn relay may also malfunction causing the horn to work intermittently. In some cases, even a low battery may cause the horn to randomly malfunction. I would recommend having a professional from YourMechanic come to your location to diagnose and repair your horn.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

I’m in O’Fallon Missouri, I would like reviews for Missouri do you have any recent ones ?

I have a 2003 Chevy Malibu I'm trying to add transmission fluid to it since I don't have a dipstick to check it how many quarts

If the dipstick is missing for your transmission, it would be somewhat difficult to determine if the fluid is at the correct level or not. I would strongly recommend having a replacement dipstick inserted before adding any fluid to the...

I hit a hole with my passenger front tire and now it vibrates and makes noise. It’s hard to pick up speed bc of tire when going up

The wheel and/tire may be damaged. There is also a possibility that the wheel/tire assembly has become unbalanced due to the impact. Extreme impacts can also damage the wheel bearing and suspension components. All of these possibilities will have to...

2004 lexus IS300 P0010 P0122 P2138 ALSO ERASED CODE P05OO AFTER CLEANING BOTH SENSORS IN TRANNY NOW CAR OVERHEATS IDLES @2000 in p

Hi Braxdon. Thanks for contacting us today. Of the error codes you've listed, the one that might be the root source of your problems is the P2138 OBD-II Trouble Code. The P2138 trouble code indicates that the Engine Control Module...

What maintenace is needed when I reach 128,000 mile mark

Maintenance intervals for your vehicle are stated in 5,000 to 10,000 mile intervals. Looking at the just past 120,000 mile schedule for your vehicle, this is what should have been done and if done, you would presently be up to...

2004 CADILLAC SRX replaced low beam headlight bulb but it still doesn't work. someone said the baluster may need to be replace.

High-intensity discharge, or HID headlights require a lot more voltage to light than conventional halogen bulbs. Then once lit, they consume less wattage than the halogen bulbs. Sometimes referred to as a ballast or ignitor, this component amplifies the 12...

Engine swap!

The main problem in such a swap is the engine computers for the two engines you are referring to are not interchangeable. And, you cannot flash re-program your existing computer to work with the new engine because the two use...

with a 14.5 gal tank, i'm getting about 240 miles, what?????

Your vehicle is EPA rated at 23 MPG in city driving and 30 MPG in highway driving. You have stated that you are able to travel 240 miles and your tank capacity is 14.5 gallons. Assuming that you refill the...

Hood Open light comes on while driving

You may have a faulty hood switch on your 2004 Mercedes-Benz E500. This switch is responsible for letting the driver know if the hood is open. It is possible that the vehicle is programmed to only show the open hood...

Related articles

How to Troubleshoot a Clutch Pedal Sticking to the Floor
Clutch pedals in manual cars stay on the floor if there's a failed clutch release bearing, slave cylinder, clutch master cylinder, or clutch linkage.
How to Replace a Windshield Wiper Module
Car windshield wiper modules control the wiper speed. If windshield wipers aren't working, replace them immediately.
Why Replacing a Strut Can Be Tricky
When fixing a car strut, the proper tools should be used. The whole unit should be replaced, including the shock absorber, spring, and camber block.