Where is the Highlander horn fuse box located?
3 Answers
The Highlander horn fuse box is located next to the engine, in front of the steering wheel, and can be seen by opening the hood. The Highlander is a vehicle produced by Toyota, a large-size SUV in the Toyota family, featuring a spacious body and innovative, roomy interior. Taking the Highlander 2018 2.0T 4WD Ultimate 7-Seater National VI as an example: it is equipped with a 360-degree panoramic camera, adaptive cruise control, a 10-inch touch LCD screen, and a panoramic sunroof; it is powered by a 2.0T 220-horsepower L4 turbocharged engine and a 6-speed automatic transmission.
Last time I helped a friend locate the fuse for the Highlander's horn, and it took quite a while. There are two main spots where the horn fuse is most likely hidden in this vehicle. The first choice is the black box on the left side of the engine bay, near the positive battery terminal—just pop the hood and you'll see it. If you can't find it there, try checking behind the storage compartment under the steering wheel on the lower left side of the driver's cabin, around knee level. Each fuse box cover has labeled diagrams, but you can also refer to the owner's manual for clarity. When searching, it's best to wear gloves and avoid letting metal tools touch the battery. Eventually, we found the 15A fuse labeled 'HORN' in the engine bay box, and after replacing it, the horn worked immediately. I'd recommend checking the condition of other components in the fuse box while you're at it to prevent other potential issues.
I discovered this pattern when I was replacing the horn fuse myself. The Highlander is cleverly designed with fuses divided into two groups: one in the engine compartment and one in the cabin. The horn fuse is mostly located in the engine compartment fuse box, which is the plastic box with clips under the left wiper. Remember to turn off the engine before operating, otherwise it's easy to cause a short circuit. Last time when I used small tweezers to pull out the fuse, I found a clear numbering diagram printed on the inside of the plastic cover, with HORN corresponding to the second blue 15A fuse from the left in the third row. If the horn doesn't work, don't panic. Sometimes the steering wheel airbag wiring harness blocks the cabin fuse box, and you have to remove the interior trim to see the spare fuse location.
