Skip the auto shop - Our mechanics make house calls

Q: Beeping noise after battery replacement

asked by on

After the battery was replaced, the car beeps constantly.

The horn in the vehicle acts as a switch. Activating the horn energizes a relay, which powers up the electronic horn located under the hood. It is possible that the relay in the circuit has experienced a malfunction, where the circuit is stuck closed and is continuously powering the electronic horn. Have an experienced mechanic, like the ones here at YourMechanic, check the battery and cables for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Gauges in car going on/off, plus hissing sound

The wire harness connections to the modules have issues with the pins and sockets getting small amounts of corrosion or loose contact causing the problems you are having. The wire harness and connections would need to be checked and cleaned...

Q: How Can I Tell If My Car Battery Needs Replacing?

A battery needs to be replaced when it can no longer support the electrical and starting system of the vehicle. How will you know this? The most common first signs that a battery is starting to go bad may not...

Q: engine wont turn over with new starter and battery in

You need to check the large cable from the battery down to the starter to see if there is power present at the starter through the cable. If you have no power to the starter's main wire then you may...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.