Chrysler 2007 Crossfire - Manual (Page 16)

To Lock The Doors
Press the Lock button on the key fob once. All turn signal
lights blink three times to indicate that the vehicle is
locked. If the turn signal lights do not blink, a door or
rear liftgate/decklid is not closed properly.
The entire vehicle, including the fuel filler door, may be
locked or unlocked by using the key in the driver’s door.
The doors and liftgate/decklid can be locked or unlocked
by pressing the central locking switch located in the
center console.
If the vehicle cannot be locked or unlocked by pressing
the transmit button, then it may be necessary to change
the batteries in the remote control.
16 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE