See also:

Power-Up
After switching the ignition key from OFF to either the ON or ACC position, or after a language change, you must wait at least five seconds prior to using the system. ...

Air Bag Warning Light
The light should come on and remain on for four to eight seconds as a bulb check when the ignition switch is first turned ON. If the light is not lit during starting, see your authorized dealer. ...

Engineering
The all-new 2008 Jeep Liberty offers a balance of off-road capability and on-road refinement. All-new independent front suspension, all-new five-link rear suspension, and a power rack-and-pinion ...