Jeep Wrangler2018 Owner's Manual page 22

20 GETTING TO KNOW YOUR VEHICLE
Backup Mode Starting
In case the ignition switch does not change with the push
of a button, the key fob may have a low or dead battery. In
this situation, a back up method can be used to operate the
ignition switch. Put the nose side of the key fob against the
ENGINE START/STOP button, and push to operate the
ignition switch.
Backup Starting Method
To Unlock The Doors And Swing Gate
Push and release the key fob unlock button once to unlock
the driver's door only, or twice to unlock all the doors and
swing gate. When the key fob unlock button is pushed, the
Illuminated Entry will initiate, and the turn signal lights
will flash twice.
To Lock The Doors And Swing Gate
Push and release the lock button on the key fob to lock all
doors. The turn signals will flash, and the horn will chirp
once to acknowledge the lock signal.
Key Fob Battery Replacement
NOTE: When a key fob battery is low, a warning will be
indicated on the vehicle's instrument cluster, and the fob
LED will no longer illuminate with a button press.
The recommended replacement battery is CR2450.
NOTE: Perchlorate Material – special handling may apply.
See www.dtsc.ca.gov/hazardouswaste/perchlorate .
1. Remove the back cover of the fob by inserting a flat-
blade screw driver into the slot on the bottom of the fob.
Pry until the cover unsnaps being careful not to damage
the seal. Proceed counter-clockwise to pry the remaining
snaps until the battery cover can be removed.