It means that your tires are flat.
like this !
I believe that it means your tire pressure is low.
The Jeep Liberty is equipped with a Tire Pressure Monitoring System (TPMS), and a light on the dashboard that looks like an exclamation point will light up if one or more of the tires on the Jeep is significantly under-inflated. You should check the air pressure in all of your tires, and make sure that each tire is properly inflated.
under the dashboard on the driver side.
The 4WD Warning Light appears as the characters 4WD with an exclamation mark, and indicates a fault with your 4WD system. If it's blinking repeatedly, the system is completely disabled due to an overload.
Low oil pressure
your overdrive is disengaged. The button is on the left side of the shift.
you might need a new part. ;3
Low tire preasure
The output voltage from the alternator is either too low or too high.
parking break is on or low break fluid
Jeep Liberty was created in 2001.