Jeep 2015 Cherokee - Owner Manual - Manual (Page 44)

To Lock The Vehicle’s Doors And Liftgate
With one of the vehicle’s Passive Entry RKE transmitters
within 5 ft (1.5 m) of the driver or passenger front door
handles, push the door handle LOCK button to lock all
four doors.
DO NOT grab the door handle, when pushing the door
handle lock button. This could unlock the door(s).
Electronic Liftgate Release/Liftgate Passive Entry
Location
Push The Door Handle Button To Lock
42 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE