Loosen the lug nuts of the left front wheel, then raise the vehicle and support it securely on jackstands before removing the left front wheel. Next, take out the fasteners at the forward end of the left inner fender splash shield to pull it back for access to the horns. Remove the lower splash shield from the engine compartment. To replace the horn(s), disconnect the electrical connector and remove the bracket bolt, accessing the horns through the left wheel well after removing the bumper cover for clarity. Finally, installation is the reverse of removal.