Jeep 2008 Liberty - Manual (Page 12)

A WORD ABOUT YOUR KEYS
You can insert the double-sided keys into the locks with
either side up.
The dealer that sold you your new vehicle has the key
code numbers for your vehicle locks. These numbers can
be used to order duplicate keys from your dealer. Ask
your dealer for these numbers and keep them in a safe
place.
Ignition Key Removal
Automatic Transmission
Place the selector lever in “P” (Park). Turn the key to the
ACC position and then push the key and cylinder inward
slightly and rotate the key to the LOCK position. Then
remove the key.
Vehicle Key
12 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE