Chrysler 2010 PT Cruiser - Owner Manual - Manual (Page 13)

A WORD ABOUT YOUR KEYS
The authorized 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
authorized dealer. Ask your authorized dealer for these
numbers and keep them in a safe place.
Ignition Key Removal
Place the shift lever in PARK and make sure that the shift
lever knob pushbutton has returned to the outward
position. Turn the ignition switch to the ACC position,
push the key and cylinder inward, rotate the key to the
LOCK position, and remove the key.
Three Button Vehicle Key
12 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE