2021 JEEP GRAND CHEROKEE warning

CAUTION!
• Install device as tightly as possible and
then retighten after driving about ½ mile
(0.8 km).
• Do not exceed 30 mph (48 km/h).
• Drive cautiously and avoid severe turns
and large bumps, especially with a
loaded vehicle.
• Do not drive for a prolonged period on
dry pavement.
• Observe the traction device manufactur-
er’s instructions on the method of instal-
lation, operating speed, and conditions
for use. Always use the suggested oper-
ating speed of the device manufacturer’s
if it is less than 30 mph (48 km/h).
• Do not use traction devices on a com-
pact spare tire.
Tire Chains (Traction Devices) — SRT
Use of traction devices require sufficient tire-
to-body clearance. Follow these recommen-
dations to guard against damage.
• Traction device must be of proper size for
the tire, as recommended by the traction
device manufacturer.• Install on Rear Tires Only
• Due to limited clearance, RUD-GRIP
4X4 or Equivalent is recommended on
295/45ZR20 tires.
WARNING!
Using tires of different size and type
(M+S, Snow) between front and rear axles
can cause unpredictable handling. You
could lose control and have a collision.
CAUTION!
To avoid damage to your vehicle or tires,
observe the following precautions:
• Because of restricted traction device
clearance between tires and other sus-
pension components, it is important
that only traction devices in good condi-
tion are used. Broken devices can cause
serious damage. Stop the vehicle imme-
diately if noise occurs that could indi-
cate device breakage. Remove the dam-
aged parts of the device before further
use.
CAUTION!
• Install device as tightly as possible and
then retighten after driving about ½ mile
(0.8 km).
• Do not exceed 30 mph (48 km/h).
• Drive cautiously and avoid severe turns
and large bumps, especially with a
loaded vehicle.
• Do not drive for a prolonged period on
dry pavement.
• Observe the traction device manufactur-
er’s instructions on the method of instal-
lation, operating speed, and conditions
for use. Always use the suggested oper-
ating speed of the device manufacturer’s
if it is less than 30 mph (48 km/h).
• Do not use traction devices on a com-
pact spare tire.
Tire Rotation Recommendations
The tires on the front and rear of your vehicle
operate at different loads and perform differ-
ent steering, handling, and braking func-
tions. For these reasons, they wear at unequal
rates.
SERVICING AND MAINTENANCE
272

• If you carry special cargo such as chemi-
cals, fertilizers, de-icer salt, etc., be sure
that such materials are well packaged and
sealed.
• If a lot of driving is done on gravel roads,
consider mud or stone shields behind each
wheel.
• Touch up the scratches as soon as possible.
An authorized dealer has touch up paint to
match the color of your vehicle.
Some parts of the vehicle may be painted
with a matte paintwork which requires spe-
cial care for its preservation
CAUTION!
Avoid washing with rollers and/or brushes
in washing stations. Wash the vehicle only
by hand using neutral pH detergents; dry it
with a wet chamois leather. Abrasive prod-
ucts and/or polishes should not be used for
cleaning the car. Bird droppings must be
washed off immediately and thoroughly as
the acid they contain is particularly ag-
gressive. Avoid (if at all possible) parking
the vehicle under trees; remove vegetable
CAUTION!
resins immediately as, when dried, it may
only be possible to remove them with abra-
sive products and/or polishes, which is
highly inadvisable as they could alter the
typical opaqueness of the paint. Do not
use pure windshield washer fluid for clean-
ing the front windshield and rear window;
dilute it min. 50% with water. Only use
pure windshield washer fluid when strictly
necessary due to outside temperature con-
ditions.
INTERIORS
Seats And Fabric Parts
Use a specific product to clean fabric uphol-
stery and carpeting.
WARNING!
Do not use volatile solvents for cleaning
purposes. Many are potentially flammable,
and if used in closed areas they may cause
respiratory harm.
Seat Belt Maintenance
Do not bleach, dye or clean the belts with
chemical solvents or abrasive cleaners. This
will weaken the fabric. Sun damage can also
weaken the fabric.
If the belts need cleaning, use a mild soap
solution or lukewarm water. Do not remove
the belts from the vehicle to wash them. Dry
with a soft cloth.
Replace the belts if they appear frayed or
worn or if the buckles do not work properly.
WARNING!
A frayed or torn belt could rip apart in a
collision and leave you with no protection.
Inspect the belt system periodically,
checking for cuts, frays, or loose parts.
Damaged parts must be replaced immedi-
ately. Do not disassemble or modify the
system. Seat belt assemblies must be re-
placed after a collision if they have been
damaged (i.e., bent retractor, torn web-
bing, etc.).
275

WHEEL AND TIRE TORQUE
SPECIFICATIONS
Proper lug nut/bolt torque is very important to
ensure that the wheel is properly mounted to
the vehicle. Any time a wheel has been re-
moved and reinstalled on the vehicle, the lug
nuts/bolts should be torqued using a properly
calibrated torque wrench using a high quality
six sided (hex) deep wall socket.
Torque Specifications
Base Model Vehicle
Lug Nut/Bolt
Torque**Lug Nut/Bolt
SizeLug Nut/Bolt
Socket Size
130 Ft-Lbs
(176 N·m)M14 x 1.50 22 mm
SRT Model Vehicle
Lug Nut/Bolt
Torque**Lug Nut/Bolt
SizeLug Nut/Bolt
Socket Size
110 Ft-Lbs
(149 N·m)M14 x 1.50 22 mm
**Use only your authorized dealer recom-
mended lug nuts/bolts and clean or remove
any dirt or oil before tightening.Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion
or loose particles.
Tighten the lug nuts/bolts in a star pattern
until each nut/bolt has been tightened twice.
Ensure that the socket is fully engaged on the
lug nut/bolt (do not insert it half way).
NOTE:
If in doubt about the correct tightness, have
them checked with a torque wrench by your
authorized dealer or service station.
After 25 miles (40 km), check the lug nut/
bolt torque to be sure that all the lug nuts/
bolts are properly seated against the wheel.
WARNING!
To avoid the risk of forcing the vehicle off
the jack, do not tighten the lug nuts/bolts
fully until the vehicle has been lowered.
Failure to follow this warning may result in
personal injury.
Torque PatternTECHNICAL SPECIFICATIONS
278

6.2L/6.4L Engine
Your vehicle is designed to meet all emissions
regulations and provide excellent fuel
economy and performance when using high-
quality unleaded gasoline having an Re-
search Octane Number (RON) of 98 or
higher. The manufacturer recommends the
use of 98 Research Octane Number (RON) or
higher for optimum performance.
Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage and immediate service is required.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesita-
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Methanol
(Methyl) is used in a variety of concentrations
when blended with unleaded gasoline. You
may find fuels containing 3% or more metha-
nol along with other alcohols called cosol-
vents. Problems that result from using
methanol/gasoline are not the responsibility
of the manufacturer. While MTBE is an oxy-
genate made from Methanol, it does not have
the negative effects of Methanol.
WARNING!
Do not use gasolines containing Methanol.
Use of these blends may result in starting
and drivability problems and may damage
critical fuel system components.
Ethanol
The manufacturer recommends that your ve-
hicle be operated on fuel containing no more
than 15% ethanol. Purchasing your fuel from
a reputable supplier may reduce the risk of
exceeding this 15% limit and/or of receiving
fuel with abnormal properties. It should also
be noted that an increase in fuel consump-
tion should be expected when using ethanol-
blended fuels, due to the lower energy con-
tent of ethanol. Problems that result from
using methanol/gasoline or E-85 ethanol
blends are not the responsibility of the
manufacturer.
CAUTION!
Use of fuel with Ethanol content higher
than 15% may result in engine malfunc-
tion, starting and operating difficulties,
and materials degradation. These adverse
effects could result in permanent damage
to your vehicle.
283

Fuel IconsWhat It Means
Diesel fuel containing up to7%(V/V) Fatty Acid Methyl Esters (FAME)EN590compliant fuel
Diesel fuel containing up to 10 % (V/V) Fatty Acid Methyl Esters (FAME)EN16734compliant fuel
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is
deadly. Follow the precautions below to
prevent carbon monoxide poisoning:
• Do not inhale exhaust gases. They con-
tain carbon monoxide, a colorless and
odorless gas, which can kill. Never run
the engine in a closed area, such as a
garage, and never sit in a parked vehicle
with the engine running for an extended
period. If the vehicle is stopped in an
open area with the engine running for
WARNING!
more than a short period, adjust the
ventilation system to force fresh, outside
air into the vehicle.
• Guard against carbon monoxide with
proper maintenance. Have the exhaust
system inspected every time the vehicle
is raised. Have any abnormal conditions
repaired promptly. Until repaired, drive
with all side windows fully open.TECHNICAL SPECIFICATIONS
286

FUEL REQUIREMENTS –
DIESEL ENGINE
Use good quality diesel fuel from a reputable
supplier. If the outside temperature is very
low, the diesel fuel thickens due to the for-
mation of paraffin clots with consequent de-
fective operation of the fuel supply system. In
order to avoid these problems different types
of fuel are distributed according to the sea-
son: summer type, winter type and arctic type
(cold/mountain areas).This vehicle must only
use premium diesel fuel that meets the require-
ments of EN 590. Biodiesel blends up to 7% that
meet EN 590 may also be used.
WARNING!
Do not use alcohol or gasoline as a fuel
blending agent. They can be unstable un-
der certain conditions and hazardous or
explosive when mixed with diesel fuel.Diesel fuel is seldom completely free of wa-
ter. To prevent fuel system trouble, drain the
accumulated water from the fuel/water sepa-
rator using the fuel/water separator drain pro-
vided on the fuel filter housing. If you buy
good quality fuel and follow the cold weather
advice above, fuel conditioners should not be
required in your vehicle. If available in your
area, a high cetane “premium” diesel fuel
may offer improved cold-starting and
warm-up performance.
CAUTION!
If the “Water in Fuel Indicator Light” re-
mains on, DO NOT START engine before
you drain the water from the fuel filter(s) to
avoid engine damage. Refer to “Draining
Fuel/Water Separator Filter” in “Servicing
And Maintenance” in your Owner’s Manual
for further information.
Fuel Icon Identification Compliant To
EN16942
The following symbols make it easier to rec-
ognize the correct type of fuel to be used on
your vehicle. Before proceeding with the sup-
ply, check the symbols placed inside the fuel
filler flap (if present) and compare them with
the symbol on the fuel pump (if present).
287

CYBERSECURITY
Your vehicle may be a connected vehicle and
may be equipped with both wired and wire-
less networks. These networks allow your
vehicle to send and receive information. This
information allows systems and features in
your vehicle to function properly.
Your vehicle may be equipped with certain
security features to reduce the risk of unau-
thorized and unlawful access to vehicle sys-
tems and wireless communications. Vehicle
software technology continues to evolve over
time and FCA, working with its suppliers,
evaluates and takes appropriate steps as
needed. Similar to a computer or other de-
vices, your vehicle may require software up-
dates to improve the usability and perfor-
mance of your systems or to reduce the
potential risk of unauthorized and unlawful
access to your vehicle systems.
The risk of unauthorized and unlawful access
to your vehicle systems may still exist, even if
the most recent version of vehicle software
(such as Uconnect software) is installed.
WARNING!
• It is not possible to know or to predict all
of the possible outcomes if your vehi-
cle’s systems are breached. It may be
possible that vehicle systems, including
safety related systems, could be im-
paired or a loss of vehicle control could
occur that may result in an accident
involving serious injury or death.
• ONLY insert media (e.g., USB, SD card,
or CD) into your vehicle if it came from a
trusted source. Media of unknown origin
could possibly contain malicious soft-
ware, and if installed in your vehicle, it
may increase the possibility for vehicle
systems to be breached.
• As always, if you experience unusual
vehicle behavior, take your vehicle to
your nearest authorized dealer
immediately.NOTE:
• FCA or your dealer may contact you directly
regarding software updates.
• To help further improve vehicle security
and minimize the potential risk of a secu-
rity breach, vehicle owners should:
– Only connect and use trusted media
devices (e.g. personal mobile phones,
USBs, CDs).
Privacy of any wireless and wired communi-
cations cannot be assured. Third parties may
unlawfully intercept information and private
communications without your consent. For
further information, refer to “Onboard Diag-
nostic System (OBD II) Cybersecurity” in
“Getting To Know Your Instrument Panel” in
your Owner’s Manual.
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300

WARNING!
ALWAYS drive safely with your hands on
the wheel. You have full responsibility and
assume all risks related to the use of the
Uconnect features and applications in this
vehicle. Only use Uconnect when it is safe
to do so. Failure to do so may result in an
accident involving serious injury or death.
• To access the Radio mode, press the “Ra-
dio” button on the touchscreen.
Selecting Radio Stations
• Press the desired radio band (AM, FM or
DAB) button on the touchscreen.
Seek Up/Seek Down
• Press the Seek up or down arrow buttons on
the touchscreen for less than two seconds
to seek through radio stations.
• Press and hold either arrow button on the
touchscreen for more than two seconds to
bypass stations without stopping. The radio
will stop at the next listenable station once
the arrow button on the touchscreen is
released.Direct Tune
• Tune directly to a radio station by pressing
the “Tune” button on the screen, and en-
tering the desired station number.
Store Radio Presets Manually
Your radio can store 36 total preset stations,
12 presets per band (AM, FM and DAB). They
are shown at the top of your radio screen. To
see the 12 preset stations per band, press the
arrow button on the touchscreen at the top
right of the screen to toggle between the two
sets of six presets.
To store a radio preset manually, follow the
steps below:
1. Tune to the desired station.
2. Press and hold the desired numbered but-
ton on the touchscreen for more than two
seconds or until you hear a confirmation
beep.
Android Auto — If Equipped
NOTE:
Feature availability depends on your carrier
and mobile phone manufacturer. Some
Android Auto features may or may not be
available in every region and/or language.
Android Auto is a feature of your Uconnect
system, and your Android 5.0 Lollipop, or
higher, powered smartphone with a data
plan, that allows you to project your smart-
phone and a number of its apps onto the
touchscreen radio display. Android Auto au-
tomatically brings you useful information,
and organizes it into simple cards that appear
just when they are needed. Android Auto can
be used with Google's best-in-class speech
technology, the steering wheel controls, the
knobs and buttons on your radio faceplate,
and the radio display’s touchscreen to control
many of your apps. To use Android Auto
follow the following steps:
1. Download the Android Auto app from the
Google Play store on your Android-
powered smartphone.
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