Dodge 2013 Grand Caravan - Manual (Page 38)

If you press the power door lock switch while the Key
Fob is in the ignition, and any front door is open, the
power locks will not operate. This prevents you from
accidentally locking your keys in the vehicle. Removing
the Key Fob or closing the door will allow the locks to
operate. A chime will sound if the Key Fob is in the
ignition switch and a door is open, as a reminder to
remove the Key Fob.
If you press the power door lock switch while the sliding
door is open, the sliding door will lock.
Front Passenger Power Door Switches
1 - Window Open/Close
2 - Power Door Locks
36 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE