2018 JEEP GRAND CHEROKEE heater

from HI to LO, indicating the change. The
LO-level setting will turn OFF automatically
after approximately 45 minutes.
NOTE:
• Once a heat setting is selected, heat will be
felt within two to five minutes.
• The engine must be running for the heated
seats to operate.
Vehicles Equipped With Remote Start
On models that are equipped with remote
start, the heated seats can be programmed to
come on during a remote start.
This feature can be programmed through the
Uconnect system. Refer to your Owner's
Manual for further details.
WARNING!
• Persons who are unable to feel pain to
the skin because of advanced age,
chronic illness, diabetes, spinal cord in-
jury, medication, alcohol use, exhaus-
tion or other physical condition must
exercise care when using the seat
WARNING!
heater. It may cause burns even at low
temperatures, especially if used for long
periods of time.
• Do not place anything on the seat or
seatback that insulates against heat,
such as a blanket or cushion. This may
cause the seat heater to overheat. Sit-
ting in a seat that has been overheated
could cause serious burns due to the
increased surface temperature of the
seat.
Rear Heated Seats
On some models, the two outboard seats are
equipped with heated seats. The heated seat
switches for these seats are located on the
rear of the center console. There are two
heated seat switches
that allow the rear
passengers to operate the seats indepen-
dently.
You can choose from HI, LO or OFF heat
settings. The indicator lights in each switch
indicate the level of heat in use. Two indica-
tor lights will illuminate for HI, one for LO
and none for OFF.• Push the heated seat button
once to
select HI-level heating.
• Push the heated seat button
a second
time to select LO-level heating.
• Push the heated seat button
a third
time to turn the heating elements OFF.
NOTE:
• Once a heat setting is selected, heat will be
felt within two to five minutes.
• The engine must be running for the heated
seats to operate.
If the HI-level setting is selected, the system
will automatically switch to LO-level after
approximately 60 minutes of continuous op-
eration. At that time, the number of illumi-
nated LEDs changes from two to one, indicat-
ing the change. The LO-level setting will turn
OFF automatically after approximately
45 minutes.
Front Ventilated Seats
If your vehicle is equipped with ventilated
seats, the seat cushion and seat back will
have fans that draw the air from the passen-
ger compartment and move air through fine
GETTING TO KNOW YOUR VEHICLE
26

WARNING!
Do not adjust the steering column while
driving. Adjusting the steering column
while driving or driving with the steering
column unlocked, could cause the driver
to lose control of the vehicle. Failure to
follow this warning may result in serious
injury or death.
Heated Steering Wheel
The steering wheel contains a heating ele-
ment that helps warm your hands in cold
weather. The heated steering wheel has only
one temperature setting. Once the heated
steering wheel has been turned on, it will stay
on for an average of 80 minutes or more
before automatically shutting off. This time
will vary based on environmental tempera-
tures. The heated steering wheel can shut off
early or may not turn on when the steering
wheel is already warm.The heated steering wheel control button is
located within the Uconnect system. You can
gain access to the control button through the
climate screen or the controls screen.
• Press the heated steering wheel button
once to turn the heating element ON.
• Press the heated steering wheel button
a second time to turn the heating element
OFF.
NOTE:
The engine must be running for the heated
steering wheel to operate.
Vehicles Equipped With Remote Start
On models that are equipped with remote
start, the heated steering wheel can be pro-
grammed to come on during a remote start
through the Uconnect system. Refer to
“Uconnect Settings” in “Multimedia” in the
Owner’s Manual for further information.
WARNING!
• Persons who are unable to feel pain to
the skin because of advanced age,
chronic illness, diabetes, spinal cord in-
WARNING!
jury, medication, alcohol use, exhaus-
tion, or other physical conditions must
exercise care when using the steering
wheel heater. It may cause burns even at
low temperatures, especially if used for
long periods.
• Do not place anything on the steering
wheel that insulates against heat, such
as a blanket or steering wheel covers of
any type and material. This may cause
the steering wheel heater to overheat.
MIRRORS
Folding Mirrors
All outside mirrors are hinged and may be
moved either forward or rearward to resist
damage. The hinges have three detent posi-
tions:
• Full forward position
• Full rearward position
• Normal positionGETTING TO KNOW YOUR VEHICLE
32

Manual Operation Override
This system offers a full complement of
manual override features. The AUTO symbol
in the front ATC display will be turned off
when the system is being used in the manual
mode.
Operating Tips
Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to pro-
vide proper corrosion protection and to pro-
tect against engine overheating. OAT coolant
(conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and de-
froster performance, make sure the engine
cooling system is functioning properly and
the proper amount, type, and concentration
of coolant is used. Use of the Air Recircula-
tion mode during Winter months is not rec-
ommended, because it may cause window
fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of
service (i.e., vacation) for two weeks or more,
run the air conditioning system at idle for
about five minutes, in fresh air with the
blower setting on high. This will ensure ad-
equate system lubrication to minimize the
possibility of compressor damage when the
system is started again.
Window Fogging
Vehicle windows tend to fog on the inside in
mild, rainy, and/or humid weather. To clear
the windows, select Defrost or Mix mode and
increase the front blower speed. Do not use
the Recirculation mode without A/C for long
periods, as fogging may occur.
CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
• Use care when washing the inside of
the rear window. Do not use abrasive
window cleaners on the interior surface
of the window. Use a soft cloth and a
CAUTION!
mild washing solution, wiping parallel
to the heating elements. Labels can be
peeled off after soaking with warm
water.
• Do not use scrapers, sharp instru-
ments, or abrasive window cleaners on
the interior surface of the window.
• Keep all objects a safe distance from
the window.
Outside Air Intake
Make sure the air intake, located directly in
front of the windshield, is free of obstruc-
tions, such as leaves. Leaves collected in the
air intake may reduce airflow, and if they
enter the plenum, they could plug the water
drains. In Winter months, make sure the air
intake is clear of ice, slush, and snow.
Cabin Air Filter
The climate control system filters out dust
and pollen from the air. Contact an autho-
rized dealer to service your cabin air filter,
and to have it replaced when needed.
GETTING TO KNOW YOUR VEHICLE
48

ommend you have your vehicle towed to
your nearest authorized dealer
immediately.
NOTE:
• The gauge may take up to five seconds to
update after adding a gallon or more of
Diesel Exhaust Fluid (DEF) to the DEF tank.
If you have a fault related to the DEF
system, the gauge may not update to the
new level. See your authorized dealer for
service.
• The DEF gauge may also not immediately
update after a refill if the temperature of
the DEF fluid is below 12F (-11C). The DEF
line heater will possibly warm up the DEF
fluid and allow the gauge to update after a
period of run time. Under very cold condi-
tions, it is possible that the gauge may not
reflect the new fill level for several drives.TRIP COMPUTER
Push and release the up or down arrow button
until the Trip A or Trip B icon is highlighted in
the instrument cluster display (Toggle left or
right to select Trip A or Trip B). Push and
release the OK button to display the Trip
information.
WARNING LIGHTS AND
MESSAGES
The warning/indicator lights will illuminate in
the instrument panel together with a dedi-
cated message and/or acoustic signal when
applicable. These indications are indicative
and precautionary and as such must not be
considered as exhaustive and/or alternative
to the information contained in the Owner’s
Manual, which you are advised to read care-
fully in all cases. Always refer to the informa-
tion in this chapter in the event of a failure
indication. All active telltales will display first
if applicable. The system check menu may
appear different based upon equipment op-tions and current vehicle status. Some tell-
tales are optional and may not appear.
Red Warning Lights
— Air Bag Warning Light
This light indicates a fault with the air bag,
and will turn on for four to eight seconds as a
bulb check when the ignition is placed in the
ON/RUN or ACC/ON/RUN position. This light
will illuminate with a single chime when a
fault with the air bag has been detected, it
will stay on until the fault is cleared. If the
light is either not on during startup, stays on,
or turns on while driving, have the system
inspected at an authorized dealer as soon as
possible.
— Brake Warning Light
This light monitors various brake functions,
including brake fluid level and parking brake
application. If the brake light turns on it may
indicate that the parking brake is applied,
that the brake fluid level is low, or that there
is a problem with the anti-lock brake system.
GETTING TO KNOW YOUR INSTRUMENT PANEL
66

Your vehicle may also be designed to perform
any of these other functions in response to
the Enhanced Accident Response System:
• Turn off the Fuel Filter Heater, Turn off the
HVAC Blower Motor, Close the HVAC Circu-
lation Door
• Cut off battery power to the:
– Engine
– Electric Motor (if equipped)
– Electric power steering
– Brake booster
– Electric park brake
– Automatic transmission gear selector
– Horn
– Front wiper
– Headlamp washer pumpNOTE:
After an accident, remember to cycle the
ignition to the STOP (OFF/LOCK) position
and remove the key from the ignition switch
to avoid draining the battery. Carefully check
the vehicle for fuel leaks in the engine com-
partment and on the ground near the engine
compartment and fuel tank before resetting
the system and starting the engine. If there
are no fuel leaks or damage to the vehicle
electrical devices (e.g. headlights) after an
accident, reset the system by following the
procedure described below.
Enhanced Accident Response System Reset
Procedure
In order to reset the Enhanced Accident Re-
sponse System functions after an event, the
ignition switch must be changed from igni-
tion START or ON/RUN to ignition OFF. Care-
fully check the vehicle for fuel leaks in the
engine compartment and on the ground near
the engine compartment and fuel tank before
resetting the system and starting the engine.
Maintaining Your Air Bag System
WARNING!
• Modifications to any part of the air bag
system could cause it to fail when you
need it. You could be injured if the air
bag system is not there to protect you.
Do not modify the components or wiring,
including adding any kind of badges or
stickers to the steering wheel hub trim
cover or the upper right side of the in-
strument panel. Do not modify the front
bumper, vehicle body structure, or add
aftermarket side steps or running
boards.
• It is dangerous to try to repair any part of
the air bag system yourself. Be sure to
tell anyone who works on your vehicle
that it has an air bag system.
• Do not attempt to modify any part of your
air bag system. The air bag may inflate
accidentally or may not function prop-
erly if modifications are made. Take your
vehicle to an authorized dealer for any
air bag system service. If your seat, in-
cluding your trim cover and cushion,
117

Adding Diesel Exhaust Fluid
The DEF gauge (located on the instrument
cluster display) will display the level of DEF
remaining in the tank. Refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.
NOTE:
Driving conditions (altitude, vehicle speed,
load, etc.) will effect the amount of DEF that
is used in your vehicle.
DEF Fill Procedure
NOTE:
Refer to “Fluids And Lubricants” in the
“Technical Specifications” section for the
correct fluid type.
1. Remove cap from DEF fill inlet (located in
fuel door).
2. Insert DEF fill adapter/nozzle into DEF fill
inlet.NOTE:
• The DEF gauge may take up to five
seconds to update after adding a gallon
or more of Diesel Exhaust Fluid (DEF)
to the DEF tank. If you have a fault
related to the DEF system, the gauge
may not update to the new level. See an
authorized dealer for service.
• The DEF gauge may also not immedi-
ately update after a refill if the tempera-
ture of the DEF fluid is below 12F
(-11C). The DEF line heater will possi-
bly warm up the DEF fluid and allow the
gauge to update after a period of run
time. Under very cold conditions, it is
possible that the gauge may not reflect
the new fill level for several drives.
DEF Filler Cap And Fuel Fill
1 — Diesel Fuel Filler
2 — Diesel Exhaust Fluid Filler
183

Cavity Cartridge Fuse Micro Fuse Description
F03 60 Amp Yellow – Radiator Fan
F05 40 Amp Green – Compressor for Air Suspension — If Equipped
F06 40 Amp Green – Anti-lock Brakes/Electronic Stability Control Pump
F07 30 Amp Pink – Starter Solenoid
F09 30 Amp Pink – Diesel Fuel Heater (Diesel Engine Only)/Brake Vacuum
Pump
F10 40 Amp Green – Body Controller/Exterior Lighting #2
F11 30 Amp Pink – Trailer Tow Electric Brake — If Equipped
F12 40 Amp Green – Body Controller #3/Power Locks
F13 40 Amp Green – Blower Motor Front
F14 40 Amp Green – Body Controller #4/Exterior Lighting #1
F15 40 Amp Green – LTR (Low Temperature Radiator) Engine Cooling Pump
F17 30 Amp Pink – Headlamp Washer — If Equipped
F19 20 Amp Blue – Headrest Solenoid — If Equipped
F20 30 Amp Pink – Passenger Door Module
F22 20 Amp Blue – Engine Control Module
F23 30 Amp Pink – Interior Lights #1
F24 30 Amp Pink – Driver Door Module
F25 30 Amp Pink – Front Wipers
F26 30 Amp Pink – Anti-lock Brakes/Stability Control Module/Valves
F28 20 Amp Blue – Trailer Tow Backup Lights — If Equipped
F29 20 Amp Blue – Trailer Tow Parking Lights — If Equipped
F30 30 Amp Pink – Trailer Tow Receptacle — If Equipped
205

Cavity Cartridge Fuse Micro Fuse Description
F62 – 10 Amp Red Air Conditioning Clutch
F63 – 20 Amp Yellow Ignition Coils (Gas), Urea Heater (Diesel)
F64 – 25 Amp Clear Fuel Injectors/Powertrain
F66 – 10 Amp Red Sunroof/Passenger Window Switches/Rain Sensor
F67 – 15 Amp Blue CD/DVD/Bluetooth Hands-free Module — If Equipped
F68 – 20 Amp Yellow Rear Wiper Motor
F69 – 15 Amp Blue Spotlight Feed — If Equipped
F70 – 20 Amp Yellow Fuel Pump Motor
F71 – 30 Amp Green Audio Amplifier
F72 – 10 Amp Red PCM — If Equipped
F73 – 15 Amp Blue HID Headlamp RH — If Equipped
F75 – 10 Amp Red Dual Batt Control — If Equipped
F76 – 10 Amp Red Anti-lock Brakes/Electronic Stability Control
F77 – 10 Amp Red Drivetrain Control Module/Front Axle Disconnect Module
F78 – 10 Amp Red Engine Control Module/Electric Power Steering
F80 – 10 Amp Red Universal Garage Door Opener/Anti-Intrusion Module
F81 – 20 Amp Yellow Trailer Tow Right Turn/Stop Lights
F82 – 10 Amp Red Steering Column Control Module/Cruise Control/DTV
F83 – 10 Amp Red Fuel Door
F84 – 15 Amp Blue Switch Bank/Instrument Cluster
F85 – 10 Amp Red Airbag Module
F86 – 10 Amp Red Airbag Module
F87 – 10 Amp Red Air Suspension — If Equipped
207