2018 JEEP CHEROKEE tire pressure

RAISING THE VEHICLE
In the case where it is necessary to raise the
vehicle, go to an authorized dealer or service
station.
TIRES
Tires — General Information
Tire Pressure
Proper tire inflation pressure is essential to
the safe and satisfactory operation of your
vehicle. Four primary areas are affected by
improper tire pressure:
• Safety and Vehicle Stability
• Economy
• Tread Wear
• Ride ComfortSafety
WARNING!
• Improperly inflated tires are dangerous
and can cause collisions.
• Underinflation increases tire flexing and
can result in overheating and tire failure.
• Overinflation reduces a tire's ability to cushion shock. Objects on the road and
chuckholes can cause damage that re-
sult in tire failure.
• Overinflated or underinflated tires can
affect vehicle handling and can fail sud-
denly, resulting in loss of vehicle con-
trol.
• Unequal tire pressures can cause steer-
ing problems. You could lose control of
your vehicle.
• Unequal tire pressures from one side of
the vehicle to the other can cause the
vehicle to drift to the right or left.
• Always drive with each tire inflated to
the recommended cold tire inflation
pressure. Both under-inflation and over-inflation affect
the stability of the vehicle and can produce a
feeling of sluggish response or over respon-
siveness in the steering.
NOTE:
• Unequal tire pressures from side to side
may cause erratic and unpredictable steer-
ing response.
• Unequal tire pressure from side to side may cause the vehicle to drift left or right.
Fuel Economy
Underinflated tires will increase tire rolling
resistance resulting in higher fuel consump-
tion.
Tread Wear
Improper cold tire inflation pressures can
cause abnormal wear patterns and reduced
tread life, resulting in the need for earlier tire
replacement.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfort-
able ride. Over-inflation produces a jarring
and uncomfortable ride.
SERVICING AND MAINTENANCE
216

Tire Inflation Pressures
The proper cold tire inflation pressure is
listed on the left side B-Pillar or rear edge of
the passenger door.
At least once a month:
• Check and adjust tire pressure with a goodquality pocket-type pressure gauge. Do not
make a visual judgement when determining
proper inflation. Tires may look properly
inflated even when they are under-inflated.
• Inspect tires for signs of tire wear or visible damage.
CAUTION!
After inspecting or adjusting the tire pres-
sure, always reinstall the valve stem cap.
This will prevent moisture and dirt from
entering the valve stem, which could dam-
age the valve stem.
Inflation pressures specified on the placard
are always “cold tire inflation pressure”. Cold
tire inflation pressure 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 sitting for a minimum of
three hours. The cold tire inflation pressure
must not exceed the maximum inflation pres-
sure molded into the tire sidewall.
Check tire pressures more often if subject to
a wide range of outdoor temperatures, as tire
pressures vary with temperature changes.
Tire pressures change by approximately 1 psi
(7 kPa) per 12°F (7°C) of air temperature
change. Keep this in mind when checking tire
pressure inside a garage, especially in the
Winter.
Example: If garage temperature = 68°F
(20°C) and the outside temperature = 32°F
(0°C) then the cold tire inflation pressure
should be increased by 3 psi (21 kPa), which
equals 1 psi (7 kPa) for every 12°F (7°C) for
this outside temperature condition.
Tire pressure may increase from 2 to 6 psi
(13 to 40 kPa) during operation. DO NOT
reduce this normal pressure build up or your
tire pressure will be too low.
Tire Pressures For High Speed Operation
The manufacturer advocates driving at safe
speeds and within posted speed limits.
Where speed limits or conditions are such
that the vehicle can be driven at high speeds,
maintaining correct tire inflation pressure is
very important. Increased tire pressure and
reduced vehicle loading may be required for
high-speed vehicle operation. Refer to an
authorized tire dealer or original equipment
vehicle dealer for recommended safe operat-
ing speeds, loading and cold tire inflation
pressures.
WARNING!
High speed driving with your vehicle under
maximum load is dangerous. The added
strain on your tires could cause them to
fail. You could have a serious collision. Do
not drive a vehicle loaded to the maximum
capacity at continuous speeds above
75 mph (120 km/h).
217

Radial Ply Tires
WARNING!
Combining radial ply tires with other types
of tires on your vehicle will cause your
vehicle to handle poorly. The instability
could cause a collision. Always use radial
ply tires in sets of four. Never combine
them with other types of tires.
Tire Repair
If your tire becomes damaged, it may be
repaired if it meets the following criteria:
• The tire has not been driven on when flat.
• The damage is only on the tread section of your tire (sidewall damage is not repair-
able).
• The puncture is no greater thana¼ofan inch (6 mm).
Consult an authorized tire dealer for tire re-
pairs and additional information. Damaged Run Flat tires, or Run Flat tires that
have experienced a loss of pressure should be
replaced immediately with another Run Flat
tire of identical size and service description
(Load Index and Speed Symbol).
Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive
50 miles (80 km) at 50 mph (80 km/h) after
a rapid loss of inflation pressure. This rapid
loss of inflation is referred to as the Run Flat
mode. A Run Flat mode occurs when the tire
inflation pressure is of/or below 14 psi
(96 kPa). Once a Run Flat tire reaches the
run flat mode it has limited driving capabili-
ties and needs to be replaced immediately. A
Run Flat tire is not repairable.
It is not recommended driving a vehicle
loaded at full capacity or to tow a trailer while
a tire is in the run flat mode.
See the tire pressure monitoring section for
more information.
Tire Spinning
When stuck in mud, sand, snow, or ice con-
ditions, do not spin your vehicle's wheels
above 30 mph (48 km/h) or for longer than
30 seconds continuously without stopping.
Refer to “Freeing A Stuck Vehicle” in “In
Case Of Emergency” for further information.
WARNING!
Fast spinning tires can be dangerous.
Forces generated by excessive wheel
speeds may cause tire damage or failure. A
tire could explode and injure someone. Do
not spin your vehicle's wheels faster than
30 mph (48 km/h) for more than 30 sec-
onds continuously when you are stuck,
and do not let anyone near a spinning
wheel, no matter what the speed.
SERVICING AND MAINTENANCE
218

Tread Wear Indicators
Tread wear indicators are in the original
equipment tires to help you in determining
when your tires should be replaced.
These indicators are molded into the bottom
of the tread grooves. They will appear as
bands when the tread depth becomes a
1/16 of an inch (1.6 mm). When the tread is
worn to the tread wear indicators, the tire
should be replaced. Refer to “Replacement
Tires” in this section for further information.
Life Of Tire
The service life of a tire is dependent upon
varying factors including, but not limited to:
• Driving style.
• Tire pressure - Improper cold tire inflationpressures can cause uneven wear patterns
to develop across the tire tread. These ab-
normal wear patterns will reduce tread life,
resulting in the need for earlier tire replace-
ment.
• Distance driven.
• Performance tires, tires with a speed rating of V or higher, and Summer tires typically
have a reduced tread life. Rotation of these
tires per the vehicle scheduled mainte-
nance is highly recommended.
WARNING!
Tires and the spare tire should be replaced
after six years, regardless of the remaining
tread. Failure to follow this warning can
result in sudden tire failure. You could lose
control and have a collision resulting in
serious injury or death. Keep dismounted tires in a cool, dry place
with as little exposure to light as possible.
Protect tires from contact with oil, grease,
and gasoline.
Replacement Tires
The tires on your new vehicle provide a bal-
ance of many characteristics. They should be
inspected regularly for wear and correct cold
tire inflation pressures. The manufacturer
strongly recommends that you use tires
equivalent to the originals in size, quality and
performance when replacement is needed.
Refer to the paragraph on “Tread Wear Indi-
cators” in this section. Refer to the Tire and
Loading Information placard or the Vehicle
Certification Label for the size designation of
your tire. The Load Index and Speed Symbol
for your tire will be found on the original
equipment tire sidewall.
It is recommended to replace the two front
tires or two rear tires as a pair. Replacing just
one tire can seriously affect your vehicle’s
handling. If you ever replace a wheel, make
sure that the wheel’s specifications match
those of the original wheels.
Tire Tread
1 — Worn Tire
2 — New Tire
219

specifically for the compact spare tire. Do not
install more than one compact spare tire and
wheel on the vehicle at any given time.
WARNING!
Compact and collapsible spares are for
temporary emergency use only. With these
spares, do not drive more than 50 mph
(80 km/h). Temporary use spares have
limited tread life. When the tread is worn
to the tread wear indicators, the temporary
use spare tire needs to be replaced. Be
sure to follow the warnings, which apply to
your spare. Failure to do so could result in
spare tire failure and loss of vehicle con-
trol.
Full Size Spare — If Equipped
The full size spare is for temporary emer-
gency use only. This tire may look like the
originally equipped tire on the front or rear
axle of your vehicle, but it is not. This spare
tire may have limited tread life. When the
tread is worn to the tread wear indicators, the
temporary use full size spare tire needs to be
replaced. Since it is not the same as youroriginal equipment tire, replace (or repair)
the original equipment tire and reinstall on
the vehicle at the first opportunity.
Limited Use Spare — If Equipped
The limited use spare tire is for temporary
emergency use only. This tire is identified by
a label located on the limited use spare
wheel. This label contains the driving limita-
tions for this spare. This tire may look like the
original equipped tire on the front or rear axle
of your vehicle, but it is not. Installation of
this limited use spare tire affects vehicle
handling. Since it is not the same as your
original equipment tire, replace (or repair)
the original equipment tire and reinstall on
the vehicle at the first opportunity.
WARNING!
Limited use spares are for emergency use
only. Installation of this limited use spare
tire affects vehicle handling. With this tire,
do not drive more than the speed listed on
the limited use spare wheel. Keep inflated
to the cold tire inflation pressures listed on
your Tire and Loading Information Placard
WARNING!
located on the driver’s side B-Pillar or the
rear edge of the driver’s side door. Replace
(or repair) the original equipment tire at
the first opportunity and reinstall it on your
vehicle. Failure to do so could result in
loss of vehicle control.
Wheel And Wheel Trim Care
All wheels and wheel trim, especially alumi-
num and chrome plated wheels, should be
cleaned regularly using mild (neutral Ph) soap
and water to maintain their luster and to pre-
vent corrosion. Wash wheels with the same
soap solution recommended for the body of the
vehicle and remember to always wash when the
surfaces are not hot to the touch.
Your wheels are susceptible to deterioration
caused by salt, sodium chloride, magnesium
chloride, calcium chloride, etc., and other road
chemicals used to melt ice or control dust on
dirt roads. Use a soft cloth or sponge and mild
soap to wipe away promptly. Do not use harsh
chemicals or a stiff brush. They can damage
the wheel’s protective coating that helps keep
them from corroding and tarnishing.
SERVICING AND MAINTENANCE
222

tires. Rotation will increase tread life, help to
maintain mud, snow, and wet traction levels,
and contribute to a smooth, quiet ride.
Refer to the “Maintenance Plan” for the
proper maintenance intervals. The reasons
for any rapid or unusual wear should be
corrected prior to rotation being performed.
The suggested Front Wheel Drive (FWD) rota-
tion method is the “forward cross” shown in
the following diagram. This rotation pattern
does not apply to some directional tires that
must not be reversed.
The suggested Four Wheel Drive (4WD) Tire
rotation method is the “rearward cross”
shown in the following diagram.
CAUTION!
Proper operation of four-wheel drive ve-
hicles depends on tires of equal size, type
and circumference on each wheel. Any
difference in tire size can cause damage to
the power transfer unit. Tire rotation
schedule should be followed to balance
tire wear.
STORING THE VEHICLE
If the vehicle should remain stationary for
more than a month, observe the following
precautions:
• Park your vehicle in a covered, dry andpossibly airy location the windows open
slightly. • Check that the Electric Park Brake is not
engaged.
• Disconnect the negative (-) terminal from the battery post and be sure that the battery
is fully charged. During storage check bat-
tery charge quarterly.
• If you do not disconnect the battery from the electrical system, check the battery
charge every 30 days.
• Clean and protect the painted parts by applying protective waxes.
• Clean and protect polished metal parts by applying protective waxes.
• Apply talcum powder to the front and rear wiper blades and leave raised from the
glass.
• Cover the vehicle with an appropriate cover taking care not to damage the painted sur-
face by dragging across dirty surfaces. Do
not use plastic sheeting which will not allow
the evaporation of moisture present on the
surface of the vehicle.
• Inflate the tires at a pressure of +7.25 psi (+0.5 bar) higher than recommended on
the tire placard and check it periodically.Front Wheel Drive (FWD) Tire Rotation
Four Wheel Drive (4WD) Tire Rotation
225

Accessories..................241
Mopar ...................241
Adaptive Cruise Control (ACC) Off .................143, 145
On..................143, 145
Adaptive Cruise Control (ACC) (Cruise Control) ..................143
Additives, Fuel ................233
AirBag .....................96 Air Bag Operation .............97
Air Bag Warning Light ..........95
Enhanced Accident Response . . . .102
Enhanced Accident Response . . . .193
Event Data Recorder (EDR) ......193
Front Air Bag ...............96
If Deployment Occurs .........102
Knee Impact Bolsters ..........98
Maintaining Your Air Bag System . .103
Maintenance ...............103
Redundant Air Bag Warning Light . .96
Transporting Pets ............116
Air Bag Light ............56, 95, 117
Air Conditioning Filter ............44
Air Conditioning, Operating Tips ......43
Air Conditioning System ...........42Air Pressure
Tires ................... .217
Alarm Arm The System .............18
Disarm The System ............18
Security Alarm ..............57
Alarm (Security Alarm) ............18
Alarm System (Security Alarm) .......18
All Wheel Drive (AWD) ...........130
Alterations/Modifications Vehicle ....................3
Antifreeze (Engine Coolant) ........237
Anti-Lock Brake System (ABS) .......68
Anti-Lock Warning Light ...........61
Arming System (Security Alarm) ......18
Assist, Hill Start ................70
Audio Jack ..................257
Automatic Door Locks ............22
Automatic Headlights ..........30, 31
Automatic Temperature Control (ATC) . . .42
Automatic Transaxle ............128
Automatic Transmission ..........129
Adding Fluid ..............240
Fluid

Level Check ............210
Fluid Level Check ...........210 Fluid Type
................240
Auto Up Power Windows ...........44
Back-Up ...................154
Back-Up Camera ..............154
Battery ..................58, 211
Charging System Light ..........58
Belts, Seat ..................117
Blind Spot Monitoring ............79
Brake Assist System .............69
Brake Control System, Electronic .....69
Brake Fluid ..............209, 240
Brake System ................209
Fluid Check ...........209, 240
Master Cylinder .............209
Parking ..................124
Warning Light ...............56
Brake/Transmission Interlock .......129
Bulb Replacement .............160
Bulbs, Light .................118
Camera ....................154
Capacities, Fluid ..............237
Caps, Filler Fuel ................155, 188
INDEX
299

Lap/Shoulder Belts..............89
Latches ....................118
Hood ....................47
Leaks, Fluid .................118
Life Of Tires .................219
Liftgate ..................48, 49
Liftgate Window Wiper/Washer .......34
Light Bulbs ..................118
Lights .....................118
AirBag ................56, 95
AirBag ..................117
Brake Assist Warning ...........74
Brake Warning ...............56
Bulb Replacement ...........160
Cruise .................64, 65
Daytime Running ............30
Engine Temperature Warning .....58
Exterior ..................118
Fog .....................63
Hazard Warning Flasher ........160
Headlights .................30
Hill Descent Control Indicator .....76
Low Fuel ..................62
Malfunction Indicator
(Check Engine) ..............59
Park ....................31
Park .....................64 Rear Fog
.................163
Seat Belt Reminder ...........56
Security Alarm ..............57
Service ..................160
Tire Pressure Monitoring (TPMS) ....60
Tire Pressure Monitoring (TPMS) . . .82
Traction Control ..............74
Turn Signal ..............32, 64
Turn Signals ...............118
Warning (Instrument Cluster
Description) ................58
Locks Automatic Door ..............22
Child Protection .............22
Steering Wheel ..............17
Low Tire Pressure System ..........82
Lug Nuts ...................231
Maintenance Free Battery .........211
Maintenance Schedule ..........
.196
Malfunction

Indicator Light (Check
Engine) ...................59
Manual Transmission ........126, 210
Fluid Level Check ...........210
Lubricant Selection ..........240
Shift Speeds ..............126
Media Hub ..................273 Memory Feature (Memory Seat)
......23
Memory Seat ..................23
Memory Seats And Radio ..........23
Methanol ...................232
Methanol Fuel ................232
Mirrors .....................29
Heated ...................29
Modifications/Alterations Vehicle ....................3
Monitor, Tire Pressure System .......82
Mopar .....................241
Mopar Accessories .............241
Navigation ...............258, 276
New Vehicle Break-In Period .......123
Occupant Restraints .............87
Octane Rating, Gasoline (Fuel) . .231, 238
Oil Change Indicator .............55
Oil Change Indicator, Reset .........55
Oil, Engine ..................238
Capacity .................237
Checking .................208
Dipstick .................208
Filter ...................238
Pressure Warning Light .........57
Recommendation ...........237
INDEX
302