How to Replace a Horn in Cars

by Contributing Writer

The Ford car has a dual-note horn setup consisting of two separate horns that sound different notes, one high and one low. The purpose of the dual-horn system is to provide the Ford car with a fuller horn tone than single-note horn systems provide. If either horn has stopped functioning, you can purchase a replacement dual-horn assembly from your local Ford car dealer. If you have basic auto-repair skills and an hour of free time, you can replace the horn assembly on your Ford car and save the labor charge.

Under The Hood:

 How to Replace a Horn in a Chevy Silverado

Buy a horn kit. The Silverado has two horns, one low tone and one high tone. Make sure the new horn has the correct tone if you are only replacing one horn.

Locate the original manufacturer's horns. The horns for a Chevy Silverado are in the front fender well on the passenger side and accessible from underneath the truck.

Remove the power connector from the horns, take out the mounting bolt with a socket wrench and remove the original manufacturer's horn. If you are installing factory replacements, you should be able to use the original mounting location. If you are installing custom horns, find a sturdy location with minimal vibration and mount the horns with the accessories included in the kit.

Use the original wiring harnesses if they fit the new horns. Otherwise, you will need to use a wire crimper/stripper to connect the new harness to the old wiring.

Test the new horns to ensure they are working. It should be easy to tell if both horns are sounding, and you can also test the horns one at a time if you need to.

Items you will need

  • 8mm socket wrench

  • New horn kit

  • Wire crimper/stripper

 How to Replace a Horn in a Ford Explorer

Locate the horns by sliding under the front of your SUV. The Ford Explorer has high and low tone horns that are both under the driver's side headlight behind the front bumper.

Access the horns by removing the splash shield. You will need to unscrew two bolts with an 8mm socket wrench. If you are only replacing one horn, ensure the new horn has the right tone.

Unplug the power connectors and remove the single mounting bolt on the horn with the socket wrench.

Take out the original horns and mount the new horns using the bolts and washers in the kit and the original mounting holes, if possible. Ensure you have one low tone and one high tone horn if you buy the horns separately.

Plug in the power connectors to each new horn if you are installing factory replacements. If the original harness is not compatible with the new horns, you will need to use your wire crimper/stripper to connect the original wiring to the new harnesses.

Test the new horns. They should make a highly discordant sound if they are both working. You can test each horn separately by plugging one in at a time.

Items you will need

  • 8mm socket wrench

  • 16-gauge wire

  • New horn kit

  • Wire crimper/stripper

 How to Replace a Horn in a Chrysler Sebring

Buy a horn kit. Direct replacement kits for the Sebring models will have only one horn but many aftermarket kits consist of two horns.

Locate the original manufacturer's horn which is behind the passenger front bumper, near the fog light. Unplug the power connector from the horn and remove the mounting bolt with a socket wrench. You should now be able to remove the original horn.

Mount the new horn using accessories in the kit, if possible. If your kit has two horns (a low tone and a high tone), you will need to bolt them to a secure location with minimal vibration.

Connect the original wiring harness to the new horn if possible. Otherwise, you will need to connect the new wiring harness to your car's wiring using a wire crimper/stripper. If you are installing two horns, you will need to use your crimper/stripper and 16-gauge wire to split the original wiring into two pairs and connect each pair to a horn.

Test the new horn to ensure it works. If you are installing two horns, you may need test them one at a time.

Items you will need

  • 8mm socket wrench

  • 16-gauge wire

  • New horn kit

  • Wire crimper/stripper

 How to Replace the Horn on a Honda Odyssey

Open the hood of the Odyssey and squeeze the top of the release tab on the electrical connection running to the horn and pull the electrical plug off the horn.

Remove the grounding bolt and the bolts holding the horn to the chassis and remove the horn.

Align the mounting holes for the horn and the chassis. Bolt the horn to the chassis.

Reconnect the electrical plug running to the horn.

Items you will need

  • Socket wrench

  • Socket set

 How to Replace a Horn in a Honda CR-V

Buy a horn kit for the Honda CR-V. It has a low tone and a high tone horn so the factory replacement kit should have two horns. Be sure the new horn has the correct tone if you are only replacing one horn.

Locate the horns. You can find the original manufacturer's horns for the Honda CR-V by raising the hood and looking at the front. There should be one horn on each side of the license plate behind the bumper.

Remove the mounting bolts with a socket wrench and disconnect the power connector from the horn. You should now be able to remove the original horn. Repeat this step for the horn on the other side.

Mount the new horn using the nuts and washers that came in the kit. You should be able to simply mount the new horns in the old brackets and use the original wiring harness if your kit is a direct factory replacement. Otherwise, you may need to attach the original wiring to the new wiring harness with a wire crimper/stripper.

Test the new horns to ensure they work. It should be easy to determine if both are working because the horns have different tones.

Items you will need

  • Socket wrench set

  • New horn kit

  • Wire crimper/stripper

 How to Replace a Horn in a VW Passat

Remove the passenger fog light cover with a Phillips screwdriver. Unplug and remove the fog light.

Locate both original manufacturer's horns behind the passenger side fog light. VW Passat models have one low tone and one high tone horn so you will need to identify the one that you need if you are only replacing one horn. Unbolt them from the car with a socket wrench and unplug the power connectors. Remove the two horns.

Unbolt the horns from the car with a socket wrench and unplug the power connectors. Remove the two horns.

Mount the new horns with the attachments that came in the kit. You should be able to simply mount the new horns in the old brackets if your kit is a direct factory replacement. Some custom horn kits include air compressors that may require you to install the horns in a non-standard location.

Plug the wiring harnesses into the new horns if they are compatible to retain the factory wiring. Some aftermarket horn kits may include a custom wiring harness that you will need to connect to your car's original wiring using a wire/crimper splitter.

Test the new horns to ensure they work. Be aware that horns that use a compressor will be extremely loud.

Items you will need

  • New horn kit

  • Phillips screwdriver

  • Wire crimper/stripper

  • Socket wrench set

 How to Replace the Horn on a Mazda 5

Purchase a replacement car horn. Since this is a routine repair, you'd be best served to shop around for the cheapest part.

Turn off the engine. Open the hood of your Mazda, stabilizing it with the hood prop.

Locate the stock horn at the front near the grille. It is a circular part that looks a lot like a school bell.

Disconnect the negative cable from its battery terminal by loosening the screws holding it in place. This must be done before electrical work takes place. Unbolt the horn from its mount with a socket wrench. Put aside the bolts so you can use them for the new horn.

Unplug the set of wires that is inserted in your old horn's socket. Pull the old horn from the vehicle and set it aside.

Place the new horn onto the area where the previous horn was mounted and secure it in place with the bolts you removed from the stock horn. Plug the set of wires into the socket of the replacement horn.

Reconnect the cable to the negative battery terminal and close the hood of the car.

Items you will need

  • Replacement horn

  • Socket wrench

  • Screwdriver

 How to Replace a Horn in a Chevy Cobalt

Remove the screws from the driver's side headlight with a Phillips screwdriver and take out the headlight. The exact location and types of screws vary by year.

Locate the original manufacturer's horn. The Chevy Cobalt has a single horn located under the driver's side headlight bracket and frame. It is in the gap in front of the wheel well and behind the front fascia.

Disconnect the power connector from the horn, take out the mounting bolt with an 8mm socket wrench and remove the original horn. Most aftermarket horn kits use two horns so you will not be able to use the original mounting location. Find a sturdy location with minimal vibration and mount the horns with a fastener that is 8mm or smaller.

Splice the original pair of wires to the two horns using a wire crimper/stripper according to the instructions for the new horns. The kit should include the connectors that you will need. Generally, you will splice a Y connection to the original pair of wires to produce two pairs of wires. Each pair will then connect to one of the new horns.

Test the new horns to ensure they work.

Re-install the driver's side headlight by reversing the procedure you used in Step 1.

Items you will need

  • New horn kit

  • 5 to 6 ft. of 16-gauge wire

  • 8mm socket wrench

  • Wire crimper/stripper

 How to Replace the Horn on a 2005 Ford F150

Slide under the front end of your 2005 Ford F150 and locate the dual-horn assembly behind the front bumper.

Unplug the wiring connector from the horn assembly by hand. Unbolt the horn assembly bracket from the frame with your socket set. Lower the horn assembly from the F150.

Hold the new horn assembly in position with one hand while threading the mounting bolts in with your other hand. Tighten the bolts with the socket set.

Plug the wiring connector into the new horn assembly by hand.

Items you will need

  • Socket set

 How to Replace the Horn on a Mercury Sable

Park your car in a level spot that provides enough light to operate under the hood.

Pop the hood of your car. Locate the circular, school-bell-like piece by the battery near the front of the under-hood. It is mounted to a bracket with nuts. Use the wrench to unscrew these nuts and place them in a safe place.

Unplug the power wire from the horn and pull it from the vehicle. Attach the replacement horn against the bracket and secure it into place by tightening the nuts around it with your wrench. Plug the power supply into the new horn.

Test the new horn, pressing the horn button on your steering wheel. Close the hood and clean your work area.

Items you will need

  • Replacement horn

  • Wrench