2020 JEEP GRAND CHEROKEE trailer

Service FCW Warning
If the system turns off, and the instrument
cluster displays:
• ACC/FCW Unavailable Service Required
• Cruise/FCW Unavailable Service Required
This indicates there is an internal system
fault. Although the vehicle is still drivable
under normal conditions, have the system
checked by an authorized dealer.
Tire Pressure Monitor System (TPMS)
NOTE:
For vehicles equipped with run flat tires —
when the TPMS indicates a tire pressure of
14 psi (96 kPa) or lower, always check tire
pressure and replace the tire at the first
opportunity. At inflation pressure of/or below
14 psi (96 kPa) the tire is in the run-flat
mode of operation. In this condition, it is
recommended a vehicle maximum speed of
50 mph (80 km/h) for a maximum distance of
50 miles (80 km). The manufacturer does not
recommend using the run flat feature while
driving a vehicle loaded at full capacity or
towing a trailer.The Tire Pressure Monitoring System (TPMS)
will warn the driver of a low tire pressure
based on the vehicle recommended cold tire
pressure.
The tire pressure will vary with temperature
by about 1 psi (7 kPa) for every 12°F (6.5°C).
This means that when the outside tempera-
ture decreases, the tire pressure will de-
crease. Tire pressure should always be set
based on cold inflation tire pressure. This is
defined as the tire pressure after the vehicle
has not been driven for at least three hours, or
driven less than 1 mile (1.6 km) after a
three-hour period.Refer to “Tires” in “Servic-
ing And Maintenance” for information on how to
properly inflate the vehicle’s tires.The tire
pressure will also increase as the vehicle is
driven - this is normal and there should be no
adjustment for this increased pressure.
The TPMS will warn the driver of a low tire
pressure if the tire pressure falls below the
low pressure warning threshold for any rea-
son, including low temperature effects, or
natural pressure loss through the tire.The TPMS will continue to warn the driver of
low tire pressure as long as the condition
exists, and will not turn off until the tire
pressure is at or above recommended cold
tire pressure. Once the low tire pressure
warning has been illuminated, the tire pres-
sure must be increased to the recommended
cold tire pressure in order for the TPMS
Warning Light to be turned off.
NOTE:
When filling warm tires, the tire pressure may
need to be increased up to an additional 4 psi
(28 kPa) above the recommended cold plac-
ard pressure in order to turn the TPMS Warn-
ing Light off.
The system will automatically update and the
TPMS Warning Light will extinguish once the
updated tire pressures have been received.
The vehicle may need to be driven for up to
10 minutes above 15 mph (24 km/h) to
receive this information.
For example, your vehicle has a recom-
mended cold (parked for more than three
hours) tire pressure of 33 psi (227 kPa). If
the ambient temperature is 68°F (20°C) and
the measured tire pressure is 28 psi
103

While cruising, brief full-throttle acceleration
within the limits of local traffic laws contrib-
utes to a good break-in. However, wide-open
throttle acceleration in low gear can be det-
rimental 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 Lubricants” in "Techni-
cal Specifications”.
CAUTION!
Never use Non-Detergent Oil or Straight
Mineral Oil in the engine or damage may
result.NOTE:
A new engine may consume some oil during
its first few thousand miles (kilometers) of
operation. This should be considered a nor-
mal part of the break-in and not interpreted
as an indication of difficulty. Please check
your oil level with the engine oil indicator
often during the break in period. Add oil as
required.
Diesel Engine
The diesel engine does not require a break-in
period due to its construction. Normal opera-
tion is allowed, providing the following rec-
ommendations are followed:
• Warm up the engine before placing it under
load.
• Do not operate the engine at idle for pro-
longed periods.
• Use the appropriate transmission gear to
prevent engine lugging.
• Observe vehicle oil pressure and tempera-
ture indicators.
• Check the coolant and oil levels frequently.• Vary throttle position at highway speeds
when carrying or towing significant weight.
NOTE:
Light duty operation such as light trailer tow-
ing or no load operation will extend the time
before the engine is at full efficiency. Re-
duced fuel economy and power may be seen
at this time.
The engine oil installed in the engine at the
factory is a high-quality energy conserving
type lubricant. Oil changes should be consis-
tent with anticipated climate conditions un-
der which vehicle operations will occur. The
recommended viscosity and quality grades
are shown under “Fluids And Lubricants” in
"Technical Specifications” in this manual.
NON-DETERGENT OR STRAIGHT MINERAL
OILS MUST NEVER BE USED.
SRT Engines
The following tips will be helpful in obtaining
optimum performance and maximum dura-
bility for your new SRT Vehicle.
Despite modern technology and World Class
manufacturing methods, the moving parts of
the vehicle must still wear in with each other.
153

mode. An onboard frequency generator cre-
ates counteracting sound waves through the
audio system to help keep the vehicle quiet.
Eight–Speed Automatic Transmission
Your vehicle is equipped with a fuel efficient
8 speed transmission. The gear selector is
located in the center console.
The transmission gear selector provides
PARK, REVERSE, NEUTRAL, DRIVE and
MANUAL or SPORT (AutoStick) shift posi-tions. Manual shifts can be made using the
AutoStick shift control. Toggling the gear se-
lector forward (-) or rearward (+) while in the
MANUAL or SPORT (AutoStick) position (be-
side the DRIVE position), or tapping the shift
paddles (+/-), will manually select the trans-
mission gear, and will display the current gear
in the instrument cluster. Refer to
"AutoStick" in this section for further infor-
mation.
NOTE:
If the gear selector cannot be moved to the
PARK, REVERSE, or NEUTRAL position
(when pushed forward), it is probably in the
AutoStick (+/-) position (beside the DRIVE
position). In AutoStick mode, the transmis-
sion gear (1, 2, 3, etc.) is displayed in the
instrument cluster. Move the gear selector to
the right (into the DRIVE [D] position) for
access to PARK, REVERSE, and NEUTRAL.
AutoStick
AutoStick is a driver-interactive transmission
feature providing manual shift control, giving
you more control of the vehicle. AutoStick
allows you to maximize engine braking, elimi-
nate undesirable upshifts and downshifts,and improve overall vehicle performance.
This system can also provide you with more
control during passing, city driving, cold slip-
pery conditions, mountain driving, trailer
towing, and many other situations.
Operation
To activate AutoStick mode, move the gear
selector into the MANUAL (M) or SPORT (S)
position (beside the DRIVE position), or tap
one of the shift paddles on the steering
wheel. Tapping the (-) shift paddle to enter
AutoStick mode will downshift the transmis-
sion to the next lower gear, while tapping (+)
to enter AutoStick mode will retain the cur-
rent gear. The current transmission gear will
be displayed in the instrument cluster. In
AutoStick mode, you can use the gear selec-
tor (in the MANUAL or SPORT position), orTransmission Gear Selector
Shift Paddles
157

Refer to “SRT Drive Modes” in the “Multime-
dia” section in your Owner’s Manual for fur-
ther information.
Selec-Track consists of the following posi-
tions:
•Sport– Dry weather, on-road calibration.
Performance based tuning that provides a
rear wheel drive feel but with improved
handling and acceleration over a two-wheel
drive vehicle. This feature will reset to
AUTO on an ignition cycle.
•Snow– Tuning set for additional stability in
inclement weather. Use on and off road on
loose traction surfaces such as snow. This
feature will reset to AUTO upon an ignition
cycle.
•Auto– Fully automatic full time four-wheel
drive operation can be used on and off road.
Balances traction with seamless steering
feel to provide improved handling and ac-
celeration over two-wheel drive vehicles.•Track– Track road calibration for use on
high traction surfaces. Driveline is maxi-
mized for traction. Some binding may be
felt on less forgiving surfaces. This feature
will reset to AUTO on an ignition cycle.
•To w– Use this mode for towing and hauling
heavy loads. Vehicle suspension will go to
sport mode. Trailer sway control is enabled
in the ESC system. This feature will reset to
AUTO upon an ignition cycle.
Custom
This mode allows the driver to create a cus-
tom vehicle configuration that is saved for
quick selection of favorite settings. The sys-
tem will return to AUTO mode when the
ignition switch is cycled from RUN to OFF to
RUN, if this mode is selected. While in Cus-
tom Mode the Stability, Transmission, Steer-
ing, Suspension, all-wheel drive set up, and
Paddle shifter settings may be configured
through the custom mode set-up.
NOTE:
Refer to “SRT Drive Modes” in the “Multime-
dia” section in your Owner’s Manual for fur-
ther information.
Active Damping System
This vehicle is equipped with an electronic
controlled damping system. This system re-
duces body roll and pitch in many driving
situations including cornering, acceleration
and braking. There are 3 modes:
•Street Mode(Available in terrain positions
AUTO, SNOW and CUSTOM.) — Used dur-
ing highway speeds where a touring sus-
pension feel is desired.
•Sport Mode(Available in terrain positions
AUTO, SPORT, CUSTOM and TOW.) — Pro-
vides a firm suspension for better handling.
•Track Mode(Available in terrain positions
AUTO, TRACK and CUSTOM.) — Provides
a full firm suspension for an aggressive
track experience.
Refer to “SRT Drive Modes” in the “Multime-
dia” section in your Owner’s Manual for fur-
ther information.
169

Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” in
your Owner’s Manual for further information.
Enabling And Disabling ParkSense
ParkSense can be enabled and disabled with
the ParkSense switch.
When the ParkSense switch is
pushed to disable the system, the
instrument cluster will display the
“PARKSENSE OFF” message for
approximately five seconds. When the gear
selector is moved to REVERSE and the sys-
tem is disabled, the instrument cluster dis-
play will display the “PARKSENSE OFF”
message for as long as the vehicle is in
REVERSE.
Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” in
your Owner’s Manual for further information.
The ParkSense switch LED will be on when
ParkSense is disabled or requires service.
The ParkSense switch LED will be off when
the system is enabled. If the ParkSenseswitch is pushed, and the system requires
service, the ParkSense switch LED will blink
momentarily, and then the LED will be on.
ParkSense System Usage Precautions
NOTE:
• Ensure that the rear bumper is free of snow,
ice, mud, dirt and debris to keep the
ParkSense system operating properly.
• Jackhammers, large trucks, and other vi-
brations could affect the performance of
ParkSense.
• When you turn ParkSense off, the instru-
ment cluster will display “PARKSENSE
OFF.” Furthermore, once you turn
ParkSense off, it remains off until you turn
it on again, even if you cycle the ignition.
• When you move the gear selector to the
REVERSE position and ParkSense is
turned off, the instrument cluster display
will display “PARKSENSE OFF” message
for as long as the vehicle is in REVERSE.
• ParkSense, when on, will reduce the vol-
ume of the radio when it is sounding a tone.• Clean the ParkSense sensors regularly, tak-
ing care not to scratch or damage them.
The sensors must not be covered with ice,
snow, slush, mud, dirt or debris. Failure to
do so can result in the system not working
properly. The ParkSense system might not
detect an obstacle behind the fascia/
bumper, or it could provide a false indica-
tion that an obstacle is behind the fascia/
bumper.
• Use the ParkSense switch to turn the
ParkSense system off if objects such as
bicycle carriers, trailer hitches, etc. are
placed within 12 inches (30 cm) from the
rear fascia/bumper. Failure to do so can
result in the system misinterpreting a close
object as a sensor problem, causing the
“PARKSENSE UNAVAILABLE SERVICE
REQUIRED” message to be displayed in
the instrument cluster display.
• ParkSense should be disabled when the
liftgate is in the open position and the
vehicle is in REVERSE. An open liftgate
could provide a false indication that an
obstacle is behind the vehicle.
STARTING AND OPERATING
178

WARNING!
Drivers must be careful when backing up
even when using the ParkView Rear Back
Up Camera. Always check carefully behind
your vehicle, and be sure to check for
pedestrians, animals, other vehicles, ob-
structions, or blind spots before backing
up. You are responsible for the safety of
your surroundings and must continue to
pay attention while backing up. Failure to
do so can result in serious injury or death.
CAUTION!
• To avoid vehicle damage, ParkView
should only be used as a parking aid.
The ParkView camera is unable to view
every obstacle or object in your drive
path.
• To avoid vehicle damage, the vehicle
must be driven slowly when using
ParkView to be able to stop in time when
an obstacle is seen. It is recommended
that the driver look frequently over his/
her shoulder when using ParkView.NOTE:
If snow, ice, mud, or any foreign substance
builds up on the camera lens, clean the lens,
rinse with water, and dry with a soft cloth. Do
not cover the lens.
Rear Camera — Viewing At Speed
When the vehicle is in park, neutral or drive,
the Rear View Camera can be activated with
the “Rear View Camera” button in the Con-
trols menu. This feature allows the customer
to monitor the area directly behind the ve-
hicle (or trailer, if equipped) for up to ten
seconds while at speed. If the vehicle speed
remains below 8 mph (13 km/h), the Rear
View Camera image will be displayed con-
tinuously until deactivated via the “X” button
on the touchscreen.
REFUELING THE VEHICLE —
GASOLINE ENGINE
1. Push the fuel filler door release switch
(located under the headlamp switch).
2. Open the fuel filler door.
Fuel Filler Door Release
185

• If containers which can be screwed to the
filler are used, the reservoir is full when the
AdBlue
®level in the container stops pour-
ing out. Do not proceed further.
CAUTION!
To avoid fuel spillage and overfilling, do
not “top off” the fuel tank after filling.
Operations After Refilling
Proceed as follows:
• Fit the cap back on the AdBlue
®filler by
turning it clockwise and screwing it com-
pletely.
• Cycle the ignition to RUN (it is not neces-
sary to start the engine).
• Wait for the indication on the instrument
panel to switch off before moving the car.
The indication may stay on for a few sec-
onds to approximately half a minute. If the
engine is started and the car is moved, the
indication will remain on for longer. This
will not compromise engine operation.• If the AdBlue
®was topped up when the
tank was empty, wait for 2 minutes before
starting the engine.
NOTE:
• If AdBlue
®is spilled out of the filler neck,
clean up well the area and proceed to filling
up again. If the liquid crystallizes, elimi-
nate it with a sponge and warm water.
• DO NOT EXCEED THE MAXIMUM LEVEL:
this could cause damage to the reservoir.
AdBlue
®freezes at under 12° F (-11° C).
Although the system is designed to operate
below the freezing point of the AdBlue
®,it
is advisable not to fill the tank beyond the
maximum level because if the AdBlue
®
freezes the system can be damaged. Follow
the instructions in this section.
• If the AdBlue
®is spilled on painted sur-
faces or aluminium, immediately clean the
area with water and use absorbent material
to collect the fluid that has been spilled on
the ground.
• Do not try to start the engine if AdBlue
®
was accidentally added to the diesel fuel
tank, this can result in serious engine dam-
age, contact an authorized dealer.• Do not add additives or other fluids to
AdBlue
®, doing so could damage the
system.
• The use of non-conforming or degraded
AdBlue
®may lead to indications appearing
on the instrument panel display refer to
“Warning Lights And Messages" in the
“Getting To Know Your Instrument Panel”
for further information.
• Never pour AdBlue
®into another con-
tainer: it could be contaminated.
• If the AdBlue
®runs out, see refer to “Warn-
ing Lights And Messages" in the “Getting To
Know Your Instrument Panel” for further
information to continue using the car
normally.
TRAILER TOWING
Trailer Towing Weights (Maximum Trailer
Weight Ratings) — Non SRT
The following chart provides the maximum
trailer weight ratings towable for your given
drivetrain.
STARTING AND OPERATING
192

Engine/TransmissionMax. GTW (Gross Trailer Wt.)
— with Trailer BrakeMax. GTW (Gross Trailer Wt.)
— without Trailer BrakeTongue Wt. (See Note)
3.6L Gasoline — Standard Cooling System 3,500 lbs (1,588 kg) 1,653 lbs (750 kg) 174 lbs (79 kg)
3.6L Gasoline — Heavy Duty Cooling System 6,200 lbs (2,812 kg) 1,653 lbs (750 kg) 310 lbs (141 kg)
5.7L Gasoline — Standard Cooling System 5,000 lbs (2,268 kg) 1,653 lbs (750 kg) 250 lbs (113 kg)
5.7L Gasoline — Heavy Duty Cooling System (except
Summit)7,716 lbs (3,500 kg) 1,653 lbs (750 kg) 377 lbs (171 kg)
5.7L Gasoline — Summit Models With Heavy Duty Cool-
ing System6,500 lbs (2,949 kg) 1,653 lbs (750 kg) 377 lbs (171 kg)
3.0L Diesel All Wheel Drive ModelswithoutEngine Start Stop and Diesel Emission Fluid
All models except Summit 7,716 lbs (3,500 kg) 1,653 lbs (750 kg) 386 lbs (175 kg)
Summit Model 6,500 lbs (2,949 kg) 1,653 lbs (750 kg) 324 lbs (147 kg)
3.0L Diesel All Wheel Drive ModelswithEngine Start Stop and Diesel Emission Fluid
All models except Summit and Trailhawk without skid
plate group7,716 lbs (3,500 kg) 1,653 lbs (750 kg) 386 lbs (175 kg)
All models except Summit and Trailhawk with skid plate
group6,500 lbs (2,949 kg) 1,653 lbs (750 kg) 324 lbs (147 kg)
Summit and Trailhawk models 6,500 lbs (2,949 kg) 1,653 lbs (750 kg) 324 lbs (147 kg)
When towing a trailer the technically permissible laden weight may be exceeded by not more than 10% or 220 lbs (100 kg), whichever is lower
provided that the operating speed is restricted to 62 mph (100 km/h) or less.
NOTE:
The trailer tongue weight must be considered as part of the combined weight of occupants and cargo, and should never exceed the weight refer-
enced on the Tire and Loading Information placard. Refer to “Tires” in “Servicing And Maintenance” for further information.
193