1. Locate the seatbelt switch. In the 2004 Ford F-150, the seatbelt switch is located on the side of the driver's seat.
2. Press and hold the seatbelt switch for several seconds. The seatbelt alarm should turn off.
3. If the seatbelt alarm does not turn off, you may need to have it disabled by a qualified mechanic.
It's important to note that disabling the seatbelt alarm is not recommended, as it may prevent the alarm from sounding in the event of an accident, which could result in serious injury.
