Replacement

• Generally, car horns are not off-the-shelf items. To obtain a replacement, a F-250 owner would need to order through a dealership or an online retailer. The mechanical replacement process should only take a few minutes. Once the F-250's hood is opened, the horn can be located behind the grille. After the wiring is disconnected, only one bolt needs removal.
  
  

The Steering Wheel

• The F-250's horn can be sounded by pressing a component on the steering wheel. The horn also has components within the steering wheel, and getting to them requires partially dismantling the steering wheel itself. The horn's electrical connections and wiring are near the airbag module. For reasons of safety, the F-250's airbag system should be disarmed before attempting to dismantle the steering wheel.
  
  

Disarming the Air Bags

• Disarming the F-250's air bag system requires opening the truck's hood. Remove the negative cable from the battery's negative terminal. Then, remove the positive cable from the positive terminal. Wait five minutes or more. The F-250 will have residual power within the vehicle. It needs to drain out or the air bags could still deploy.