2021 JEEP GRAND CHEROKEE inflation pressure

WARNING!
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.
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 inflation
pressures 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.
NOTE:
Wheel Valve Stem must be replaced as well
when installing new tires due to wear and tear
in existing tires.
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-
Tire Tread
1 — Worn Tire
2 — New Tire
SERVICING AND MAINTENANCE
266

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 alumi-
num 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 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.
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
270

Tilt Steering Column...........33, 34
Tips ......................320
Tires...............143, 262, 268
Aging (Life Of Tires)..........266
Air Pressure...............262
Chains...............271, 272
Changing..........217, 222, 262
Compact Spare.............269
Flat Changing..............222
General Information.......262, 268
High Speed................264
Inflation Pressure............263
Jacking...............217, 262
Life Of Tires...............266
Load Capacity..............264
Pressure Monitoring System
(TPMS)................79, 103
Radial...................265
Replacement...........222, 266
Rotation..................272
Safety...................262
Snow Tires................268
Spare Tires.........217, 268, 270
Spinning.................265
Tread Wear Indicators.........266
Wheel Mounting.............222
Wheel Nut Torque............278To Open Hood.................59
Tow Hooks
Emergency................235
Towing.................192, 231
Disabled Vehicle.............231
Guide................192, 194
Recreational...............198
Weight...............192, 194
Towing Behind A Motorhome.......198
Towing Eyes.................234
T
raction Control................89
Trailer Sway Control (TSC)..........93
Trailer Towing................192
Trailer Towing Guide.........192, 194
Trailer Weight.............192, 194
Transfer Case
Fluid....................297
Transmission.................157
Automatic.............157, 256
Fluid....................297
Maintenance...............256
Shifting..................154
Transporting Pets..............140
Tread Wear Indicators............266
Trip Computer.................73
Turn Signals............40, 83, 207Uconnect 4C/4C Nav With 8.4-Inch
Display...................307
Uconnect 4 With 7-Inch Display.....301
Uconnect (Hands-Free Phone)......333
Making A Phone Call..........333
Receiving A Call.............333
Uconnect Phone...............333
Uconnect Settings
Customer Programmable Features . . .21
Passive Entry Programming.......21
Uconnect Voice Command.........341
Unleaded Gasoline.............282
Untwisting Procedure, Seat Belt.....112
USB......................321
USB Port...................321
Vehicle Identification Number (VIN) . . .277
Vehicle Loading...............264
Vehicle Storage................51
Voice Command...............339
Commands................338
Voice Recognition System
(VR)..............338, 339, 341
Warning Flashers, Hazard........
.203
Warning Lights (Instrument Cluster
Descriptions)................
77
373