Jeep 2011 Grand Cherokee Owner's Manual page 40

38 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
If one of the vehicle doors is open and the door panel
switch is used to lock the vehicle, once all open doors
have been closed, the vehicle checks the inside and
outside of the vehicle for any valid Passive Entry RKE
transmitters. If one of the vehicle's Passive Entry RKE
transmitters is detected inside the vehicle, and no other
valid Passive Entry RKE transmitters is detected outside
the vehicle, the Passive Entry System automatically un-
locks all vehicle doors and chirps the horn three times (on
the third attempt ALL doors will lock and the Passive
Entry RKE transmitter can be locked in the vehicle).
To Enter The Liftgate
Liftgate Passive Entry Button
With a valid Passive Entry RKE transmitter within 3 ft
(1.0 m) of the liftgate, press the button on the right side of
the chrome accent bar, which is located on the liftgate
below the flipper glass to lock or unlock the vehicle.