heater JEEP GRAND CHEROKEE LIMITED 2019 Owners Manual

A recall can be canceled by pushing any of the memory
buttons during a recall (S, 1, or 2), or by pushing any of the
seat adjustment switches. When a recall is canceled, the
driver’s seat and steering column (if equipped) stop mov-
ing. A delay of one second will occur before another recall
can be selected.
Easy Entry/Exit Seat
This feature provides automatic driver seat positioning to
enhance driver mobility when entering and exiting the
vehicle.
The distance the driver seat moves depends on where you
have the driver seat positioned when you cycle the vehi-
cle’s ignition to the OFF position.
•
When you cycle the vehicle’s ignition to the OFF position,
the driver seat will move about 2.4 inches (60 mm)
rearward if the driver seat position is greater than or
equal to 2.7 inches (67.7 mm) forward of the rear stop. The
seat will return to its previously set position when you
cycle the vehicle’s ignition to the ACC or RUN position.
•The Easy Entry/Easy Exit feature is disabled when the
driver seat position is less than 0.9 of an inch (22.7 mm)
forward of the rear stop. At this position, there is no
benefit to the driver by moving the seat for Easy Exit or
Easy Entry. Each stored memory setting will have an associated Easy
Entry and Easy Exit position.
NOTE:
The Easy Entry/Exit feature is not enabled when
the vehicle is delivered from the factory. The Easy Entry/
Exit feature is enabled (or later disabled) through the
programmable features in the Uconnect system. Refer to
“Uconnect Settings” in “Multimedia”.
Heated Seats — If Equipped
On some models, the front and rear seats may be equipped
with heaters located in the seat cushions and seat backs.

WARNING!(Continued)
•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. Sitting in
a seat that has been overheated could cause serious
burns due to the increased surface temperature of the
seat.
Front Heated Seats
The front heated seat control buttons are located within the
climate or controls screen of the touchscreen.
You can choose from HI, LO, or OFF heat settings. The
indicator arrows in touchscreen buttons indicate the level
of heat in use. Two indicator arrows will illuminate for HI,
and one for LO. Turning the heating elements off will
return the user to the radio screen.
• Press the heated seat button
once to turn the HI
setting on.
• Press the heated seat buttona second time to turn
the LO setting on.
• Press the heated seat buttona 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.
• The level of heat selected will stay on until the operator
changes it.
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 “Uconnect Settings” in “Multimedia” for
further information.

WARNING!(Continued)
•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. Sitting in
a seat that has been overheated could cause serious
burns due to the increased surface temperature of the
seat.
Rear Heated Seats — If Equipped
On some models, the two rear outboard seats may be
equipped with heated seats. There are two heated seat
switches that allow the rear passengers to operate the seats
independently. The heated seat switches for each heater are
located on the rear of the center console. You can choose from HI, LO, or OFF heat settings. Amber
indicator lights in each switch indicate the level of heat in
use. Two indicator lights will illuminate for HI, one for LO
and none for OFF.
•
Push the switch
once to turn the HI setting on.
•Push the switcha second time to turn the LO
setting on.
• Push the switcha third time to turn the heating
elements off.

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
NOTE:Refer to the chart at the end of this section for
suggested control settings for various weather conditions.
Summer Operation
The engine cooling system must be protected with a
high-quality antifreeze coolant to provide proper corrosion
protection and to protect against engine overheating. OAT
coolant (conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is functioning
properly and the proper amount, type, and concentration
of coolant is used. Use of the Air Recirculation mode
during Winter months is not recommended, 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 adequate system
lubrication to minimize the possibility of compressor dam-
age 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 De-
frost 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.

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 Circulation 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 pump NOTE:
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
compartment and on the ground near the engine compart-
ment 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. If you have any doubt, contact an authorized dealer.
Enhanced Accident Response System Reset
Procedure
In order to reset the Enhanced Accident Response System
functions after an event, the ignition switch must be
changed from ignition START or ON/RUN to ignition OFF.
Carefully check the vehicle for fuel leaks in the engine
compartment and on the ground near the engine compart-
ment and fuel tank before resetting the system and starting
the engine.
5
SAFETY 223

WARNING!
•Never pour fuel or other flammable liquid into the
throttle body air inlet opening in an attempt to start
the vehicle. This could result in flash fire causing
serious personal injury.
• Do not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic trans-
mission cannot be started this way. Unburned fuel
could enter the catalytic converter and once the
engine has started, ignite and damage the converter
and vehicle.
• If the vehicle has a discharged battery, booster cables
may be used to obtain a start from a booster battery
or the battery in another vehicle. This type of start
can be dangerous if done improperly. Refer to “Jump
Starting Procedure” in “In Case Of Emergency” for
further information.
CAUTION!
To prevent damage to the starter, do not continuously
crank the engine for more than 25 seconds at a time.
Wait 60 seconds before trying again.
Cold Weather Operation (Below –22°F Or 30°C)
To ensure reliable starting at these temperatures, use of an
externally powered electric engine block heater (available
from your authorized dealer) is recommended.
After Starting
The idle speed is controlled automatically, and it will
decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the cord to a
standard 110-115 Volt AC electrical outlet with a grounded,
three-wire extension cord.
The engine block heater must be plugged in at least one
hour to have an adequate warming effect on the engine.
The engine block heater cord is located:
• 3.6L Engine — Coiled and strapped to the engine oil
dipstick tube.
• 5.7L Engine — Bundled and fastened to the injector
harness.
258 STARTING AND OPERATING

WARNING!
Remember to disconnect the engine block heater cord
before driving. Damage to the 110-115 Volt electrical
cord could cause electrocution.
ENGINE BREAK-IN RECOMMENDATIONS — 3.6L &
5.7L ENGINES
A long break-in period is not required for the drivetrain
(engine, transmission, clutch, and rear axle) in your new
vehicle.
Drive moderately during the first 300 miles (500 km). After
the initial 60 miles (100 km), speeds up to 50 or 55 mph (80
or 90 km/h) are desirable.
While cruising, brief full-throttle acceleration within the
limits of local traffic laws contributes to a good break-in.
However, wide-open throttle acceleration in low gear can
be detrimental and should be avoided.The engine oil, transmission fluid, and axle lubricant
installed at the factory is high-quality and energy-
conserving. Oil, fluid, and lubricant changes should be
consistent with anticipated climate and conditions under
which vehicle operations will occur. For the recommended
viscosity and quality grades, refer to “Fluids And Lubri-
cants” in
Technical Specifications”.

CavityCartridge Fuse Micro Fuse Description
F57 –20 Amp Yellow NOX Sensor — If Equipped
F58 –15 Amp Blue HID Headlamps LH — If Equipped
F59 –10 Amp Red Purging Pump (Diesel Engine Only)
F60 –15 Amp Blue Transmission Control Module
F61 –10 Amp Red Transmission Control Module/PM Sensor
(Diesel Engine Only)
F62 –10 Amp Red Air Conditioning Clutch
F63 –20 Amp Yellow Ignition Coils / Ignition Coil Capacitors /
Short Runner Valve Actuator — If Equipped(Gas) Urea Heater (Diesel)
F64 –25 Amp Clear Fuel Injectors/Powertrain
F66 –10 Amp Red Sunroof/Rain Sensor/Inside Rear View Mir-
ror / USB Port / DSCR / DTV — IfEquipped
F67 –15 Amp Blue CD/DVD/UCI Port/USB Charging Port
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 Amplifier/ANCM — If Equipped
F72 –10 Amp Red ECM
410 IN CASE OF EMERGENCY

CavityCartridge Fuse Micro Fuse Description
F90/F91 –20 Amp Yellow Power Outlet (Rear Seats) Selectable
F92 –10 Amp Red Rear Console Lamp — If Equipped
F93 –20 Amp Yellow Cigar Lighter
F94 –10 Amp Red Shifter/Transfer Case Module
F95 –10 Amp Red Rear Camera / Blind Spot Sensor — If
Equipped
F96 –10 Amp Red Rear Seat Heater Switch/Flashlamp Charger
— If Equipped
F97 –20 Amp Yellow Rear Heated Seats & Heated Steering Wheel
— If Equipped
F98 –20 Amp Yellow Ventilated Seats/Front Heated Seats — If
Equipped
F99 –10 Amp Red Climate Control/Driver Assistance Systems
Module/HALF/Park Assist
F100 –10 Amp Red Active Damping — If Equipped
F101 –15 Amp Blue In Car Temperature Sensor/Humidity Sensor
F102 –15 Amp Blue Spare
F103 –10 Amp Red Cabin Heater (Diesel Engine Only)/Rear
HVAC — If Equipped
F104 –20 Amp Yellow Power Outlets (Instrument Panel/Center
Console/Rear Cargo — If Equipped)
412 IN CASE OF EMERGENCY

IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate action.
•On the highways — slow down.
• In city traffic — while stopped, place the transmission in
NEUTRAL, but do not increase the engine idle speed
while preventing vehicle motion with the brakes.
NOTE: There are steps that you can take to slow down an
impending overheat condition:
• If your air conditioner (A/C) is on, turn it off. The A/C
system adds heat to the engine cooling system and
turning the A/C off can help remove this heat.
• You can also turn the temperature control to maximum
heat, the mode control to floor and the blower control to
high. This allows the heater core to act as a supplement
to the radiator and aids in removing heat from the
engine cooling system.
CAUTION!
Driving with a hot cooling system could damage your
vehicle. If the temperature gauge reads HOT (H), pull
over and stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on HOT
(H), and you hear continuous chimes, turn the engine
off immediately and call for service.7
IN CASE OF EMERGENCY 425