The horn is mounted on a bracket behind the front bumper.
You will need a 10 mm wrench.
1. Disconnect the wire from the negative terminal of the battery.
2. Remove the front bumper (see "Removal and installation the front bumper").
3. Unscrew the nut securing the horn to the bracket...
4. ...and move the horn to the side.
5. Squeeze the lock...
6. ...and disconnect the wiring harness connector from the horn.
7. Install the horn in the reverse order of removal.