Note: Determine the left and right sides of the machine from the normal operating position.
Park the machine on a level surface, set the parking brake, shut off the engine, and remove the key.
Disconnect the negative-battery cable; refer to your Operator’s Manual.
Park the machine on a level surface, set the parking brake, shut off the machine, and remove the key.
Disconnect the main negative-battery cable (black) that connects the bank of batteries to the ground point of the machine; refer to your Operator’s Manual.
Parts needed for this procedure:
| 12 V horn assembly (for Gasoline GTX vehicles) | 1 |
| 48 V horn assembly (for Electric GTX vehicles) | 1 |
| Hex-head screw (5/16 x 3/4 inch) | 1 |
| Flange nut (5/16 inch) | 1 |
Release the rubber straps on both sides of the hood and raise the hood.
Install the 12 V horn assembly to the existing hole in the dash bracket with the hex-head screw (5/16 x 3/4 inch) and flange nut (5/16 inch) as shown in Figure 1.

Plug the 2 female connectors from the main wire harness into the 2 male connectors on the 12 V horn (Figure 2).

Release the rubber straps on both sides of the hood and raise the hood.
Install the 48 V horn assembly to the existing hole in the dash bracket with the hex-head screw (5/16 x 3/4 inch) and flange nut (5/16 inch) as shown in Figure 3.
Note: The bracket on the horn assembly and the flange nut (5/16 inch) are located on the inside of the dash bracket (Figure 3).

Plug the 2 female connectors from the main wire harness into the 2 male connectors on the 48 V horn (Figure 4).

Parts needed for this procedure:
| Horn switch | 1 |
| Rubber button | 1 |
Reach under the dash bracket and push the existing plastic plug out.
Reach under the dash bracket and install the horn switch into the opening (Figure 5).

Install the rubber button to the horn switch (Figure 6).

Plug the female connector from the main wire harness to the male connector on the horn switch (Figure 7).

Reach under the dash bracket and push the existing plastic plug out.
Reach under the dash bracket and install the horn switch into the opening (Figure 5).
Install the rubber button to the horn switch (Figure 6).
Plug the female connector from the main wire harness to the male connector on the horn switch (Figure 7).
Parts needed for this procedure:
| Fuse (30 A) | 1 |
Connect the negative-battery cable; refer to your Operator’s Manual.
Connect the main negative-battery cable (black) that connects the bank of batteries to the ground point of the machine; refer to your Operator’s Manual.
Confirm that the horn sounds when you press the horn button and stops when you release it.
Note: If the horn does not sound, ensure that the wire-harness connectors are secure.