Dodge Challenger 2012 Owner's Manual page 39

Trunk Passive Entry Button
NOTE: If you inadvertently leave your vehicle's Passive
Entry RKE transmitter in the trunk and try to close the
deck lid, the deck lid will automatically unlatch, unless
another one of the vehicle's Passive Entry RKE transmit-
ters is outside the vehicle and within 3 ft (1.0 m) of the
deck lid.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 37
To Lock The Vehicle's Doors
With one of the vehicle's Passive Entry RKE transmitters
within 5 ft (1.5 m) of the driver or passenger front door
handles, press the door handle LOCK button to lock both
doors.
Outside Door Handle Lock Button
2