2018 JEEP GRAND CHEROKEE inflation pressure

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.
It is recommended you contact an authorized
tire dealer or original equipment dealer with
any questions you may have on tire specifica-tions or capability. Failure to use equivalent
replacement tires may adversely affect the
safety, handling, and ride of your vehicle.
WARNING!
• Do not use a tire, wheel size, load rating,
or speed rating other than that specified
for your vehicle. Some combinations of
unapproved tires and wheels may
change suspension dimensions and per-
formance characteristics, resulting in
changes to steering, handling, and brak-
ing of your vehicle. This can cause un-
predictable handling and stress to steer-
ing and suspension components. You
could lose control and have a collision
resulting in serious injury or death. Use
only the tire and wheel sizes with load
ratings approved for your vehicle.
• Never use a tire with a smaller load index
or capacity, other than what was origi-
nally equipped on your vehicle. Using a
tire with a smaller load index could re-
sult in tire overloading and failure. You
could lose control and have a collision.
WARNING!
• Failure to equip your vehicle with tires
having adequate speed capability can
result in sudden tire failure and loss of
vehicle control.
CAUTION!
Replacing original tires with tires of a
different size may result in false speedom-
eter and odometer readings.
Tire Types
All Season Tires — If Equipped
All Season tires provide traction for all sea-
sons (Spring, Summer, Fall, and Winter).
Traction levels may vary between different all
season tires. All season tires can be identified
by the M+S, M&S, M/S or MS designation on
the tire sidewall. Use all season tires only in
sets of four; failure to do so may adversely
affect the safety and handling of your vehicle.
259

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 your
original 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
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 aluminum
and chrome plated wheels, should be cleaned
regularly using mild (neutral Ph) soap and water
to maintain their luster and to prevent corrosion.
Wash wheels with the same soap solution recom-
mended 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.
CAUTION!
Avoid products or automatic car washes
that use acidic solutions or strong alkaline
additives or harsh brushes. Many aftermar-
ket wheel cleaners and automatic car
washes may damage the wheel's protective
finish. Such damage is not covered by the
New Vehicle Limited Warranty. Only car
wash soap is recommended.
When cleaning extremely dirty wheels includ-
ing excessive brake dust, care must be taken
in the selection of tire and wheel cleaning
SERVICING AND MAINTENANCE
262

Rear Seat................102
Reminder.................69
Untwisting Procedure.........104
Seats.................24, 25, 26
Heated................25, 26
Memory..................24
Vented...................26
Ventilated.................26
Security Alarm..............17, 69
Arm The System.............18
Disarm The System............18
Selec-Terrain.................158
Sentry Key
Key Programming............17
Sentry Key Replacement........14, 17
Service Assistance.............340
Shifting....................145
Automatic Transmission. . . .145, 147
Shoulder Belts................102
Signals, Turn...........75, 133, 201
Siri.......................334
Snow Chains (Tire Chains).....263, 264
Snow Tires..................260
Spare Tire...................260
Spare Tires...........260, 261, 262
Speed Control
Accel/Decel............164, 165Accel/Decel (ACC Only)........166
Cancel..................165
Distance Setting (ACC Only).....168
Mode Setting (ACC Only).......169
Resume.................165
Set ....................164
Speed Control (Cruise Control) . . .163, 164
Starting..............16, 137, 139
Automatic Transmission. . . .137, 140
Remote..................16
Starting And Operating...........137
Starting Procedures.........137, 139
Starting Procedures (Diesel Engines) . .139
Steering
Tilt Column
................31
Wheel, Heated..............32
Wheel, Tilt.................31
Steering Wheel Mounted Sound System
Controls..................291
Storage, Vehicle................48
Sunroof
Closing...................51
Opening..................51
Venting...................51
Sun Roof....................51
Supplemental Restraint System - Air
Bag.....................110Sway Control, Trailer.............87
System, Remote Starting..........16
Telescoping Steering Column........31
Temperature Control, Automatic (ATC) . .47
Text Messaging...............328
Tilt Steering Column.............31
Tires...............133, 255, 260
Aging (Life Of Tires)..........258
Air Pressure...............255
Chains...............263, 264
Changing.............214, 255
Compact Spare.............261
Flat Changing..............214
General Information..........255
General Information..........260
General Information..........260
High Speed................257
Inflation Pressure............256
Jacking..................255
Life Of Tires...............258
Pressure Monitoring System (TPMS) .72
Pressure Monitor System (TPMS) . . .95
Radial...................257
Replacement...........214, 259
Rotation.................264
Safety...................255
INDEX
362