You can only use the remote control when your vehicle is stationary.
Unlocking the Doors
Unlock  Press the button to unlock all doors. One long flash of the turn signal lamps confirms that your vehicle has unlocked.
One-Stage Unlocking
Unlock Icon   Press the button to unlock all doors.
Two-Stage Unlocking (If Equipped)
Unlock Icon  Press the button to unlock the driver's door.Press the button again within three seconds to unlock all doors.
Locking the Doors
Lock   Press the button to lock all doors.One short flash of the turn signal lamps confirms your vehicle is locked.
Note:   For more information on operating the doors from outside your vehicle  See   Keyless Entry