Jeep Grand Cherokee 2016 Owner's Manual page 41

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 are detected out-
side the vehicle, the Passive Entry System automatically
unlocks 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).
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 39
To Unlock/Enter The Liftgate
The liftgate passive entry unlock feature is built into the
electronic liftgate release. With a valid Passive Entry RKE
transmitter within 3 ft (1.0 m) of the liftgate, push the
electronic liftgate release for a power open on vehicles
equipped with Power Liftgate. Push the electronic lift-
gate release and lift for Manual Liftgate vehicles.
NOTE: If the vehicle is unlocked, then the liftgate will
open with the electronic liftgate release and no RKE
Transmitter is required.
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