See also:

Clearing the programmed information
Individual buttons cannot be cleared. However, to clear all programming, press and hold the two outside buttons and release when the indicator light begins to flash (approximately 20 seconds). ...

Fan control dial
The fan control dial turns the fan on and off, and controls fan speed. ...

King Cab
Maximum towing capacity: 6,500 pounds (4x2 V-6), 6,300 pounds (4x4 V-6) Maximum payload range: 899-1,547 pounds (depending on trim, engine, transmission) ...