Jeep grand cherokee 2018, Quick Reference Manual, Page: 11 / 24

How do I manually turn off/on the engine STOP/
START system?
• Press the STOP/START OFF switch (located
on the switch bank). The light on the switch
will illuminate when the system is off. The
light on the switch will turn off when system
is on.
What are possible reasons the engine does not
autostop?
• The hood is ajar. • The transmission
is not in a forward
gear.
• Driver’s door is
open.
• The vehicle is in
4LO transfer case
mode (if equipped).
• Driver’s seat belt is
unbuckled.
• The vehicle has
not reached a
speed of 5 mph
(8 km/h) after the
previous autostop.
• Cabin heating or cooling is in process and an
acceptable cabin temperature has not been
achieved.
• Many of these reasons are displayed as a
STOP/START message in the instrument
cluster display within the STOP/START sec-
tion. The system must be in the “STOP/
START READY” state to autostop. To access
the STOP/START section of the instrument
cluster display, use the display controls. Re-
fer to the “Starting and Operating” section
of your Owner’s Manual for a complete list of
possible events in which the engine does not
autostop.
How do I know I am in an autostop?
• The engine will shut down, the tachometer
will move to the zero position and the STOP/
START telltale will illuminate in the instru-
ment cluster.
How do I start the engine while in an autostop?
• While in a forward gear, the engine will start
when the brake pedal is released or the
throttle pedal is depressed. The transmis-
sion will automatically re-engage upon en-
gine restart.
For further information, and applicable warn-
ings and cautions, please refer to the Owner’s
Manual at www.mopar.com/en-us/care/owners-
manual.html
(U.S. Residents) or
www.owners.mopar.ca (Canadian Residents).