See also:

Fan speed control
The ignition switch must be in the ON position for fan operation. The fan speed control knob allows you to control the fan speed of the air flowing from the ventilation system. To change the fan ...

Adding equipment to or modifying your air bag-equipped vehicle
If you modify your vehicle by changing your vehicle's frame, bumper system, front end or side sheet metal or ride height, this may affect the operation of your vehicle's air bag system. ...

Cooling system
Check cooling system components, such as radiator, coolant reservoir, hoses and connections for leakage and damage. Replace any damaged parts. ...