tire replacement JEEP GRAND CHEROKEE 2011 WK2 / 4.G Owners Manual

Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver ’s responsibility to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon subse-
quent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for a variety
of reasons, including the installation of replacement or
alternate tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check theTPMS malfunction telltale after replacing one or more
tires or wheels on your vehicle, to ensure that the
replacement or alternate tires and wheels allow the TPMS
to continue to function properly.
CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system opera-
tion or sensor damage may result when using re-
placement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage. Do not use tire sealant from a can, or
balance beads if your vehicle is equipped with a
TPMS, as damage to the sensors may result.
252 UNDERSTANDING YOUR INSTRUMENT PANEL

▫Radial-Ply Tires ..................... 406
▫ Spare Tire Matching Original Equipped Tire
And Wheel – If Equipped .............. 406
▫ Compact Spare Tire – If Equipped ........ 407
▫ Full Size Spare – If Equipped ............ 408
▫ Limited-Use Spare – If Equipped ......... 408
▫ Tire Spinning ....................... 409
▫ Tread Wear Indicators ................. 410
▫ Life Of Tire ........................ 410
▫ Replacement Tires .................... 411
 Tire Chains (Traction Devices) ............. 412
 Snow Tires .......................... 413
 Tire Rotation Recommendations ........... 414
Tire Pressure Monitor System (TPMS) ....... 415
▫ Base System ........................ 417
▫ Premium System – If Equipped .......... 420
▫ General Information .................. 424
 Fuel Requirements ..................... 424
▫ 3.6L Engine ........................ 424
▫ 5.7L Engine ........................ 424
▫ Reformulated Gasoline ................ 425
▫ Gasoline/Oxygenate Blends ............. 425
▫ E-85 Usage In Non-Flex Fuel Vehicles ...... 426
▫ MMT In Gasoline .................... 427
▫ Materials Added To Fuel ............... 427
▫ Fuel System Cautions ................. 427
340 STARTING AND OPERATING

WARNING! (Continued)
•Unequal tire pressures from one side of the ve-
hicle to the other can cause the vehicle to drift to
the right or left.
•Always drive with each tire inflated to the recom-
mended cold tire inflation pressure.
Economy
Improper inflation pressures can cause uneven wear
patterns to develop across the tire tread. These abnormal
wear patterns will reduce tread life resulting in a need for
earlier tire replacement. Under-inflation also increases
tire rolling resistance and results in higher fuel
consumption.
Ride Comfort and Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable
ride. Both under-inflation and over-inflation affect thestability of the vehicle and can produce a feeling of
sluggish response or over responsiveness in the steering.
Unequal tire pressures can cause erratic and unpredict-
able steering response.
Unequal tire pressure from side to side may cause the
vehicle to drift left or right.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the
driver’s side “B” Pillar.
The pressure should be checked and adjusted, as well as
inspected for signs of tire wear or visible damage, at least
once a month. Use a good quality pocket-type gauge to
check tire pressure. Do not make a visual judgement
when determining proper inflation. Radial tires may look
properly inflated even when they are under-inflated.
404 STARTING AND OPERATING

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 balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressure. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed. (Refer to the paragraph on
“Tread Wear Indicators”). Refer to the “Tire and Loading
Information” placard for the size designation of your
tires. The service description and load identification will
be found on the original equipment tire. Failure to use
equivalent replacement tires may adversely affect the
safety, handling, and ride of your vehicle. We recommend
that you contact your original equipment or an autho-
rized tire dealer with any questions you may have on tire
specifications or capability.
WARNING!
•Do not use a tire, wheel size or rating other than
that specified for your vehicle. Some combinations
of unapproved tires and wheels may change sus-
pension dimensions and performance characteris-
tics, resulting in changes to steering, handling, and
braking of your vehicle. This can cause unpredict-
able handling and stress to steering and suspen-
sion 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 than what was originally equipped on
your vehicle. Using a tire with a smaller load index
could result in tire overloading and failure. You
could lose control and have a collision.(Continued)
5
STARTING AND OPERATING 411

cold tire pressure. Once the low tire pressure warning has
been illuminated, the tire pressure must be increased to
the recommended cold tire pressure in order for the Tire
Pressure Monitoring Telltale Light to be turned off. The
system will automatically update and the Tire Pressure
Monitoring Telltale Light will extinguish once the up-
dated tire pressures have been received. The vehicle may
need to be driven for up to 20 minutes above 15 mph
(24 km/h) to receive this information.
For example, your vehicle has a recommended 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 (193 kPa), a tempera-
ture drop to 20°F (-7°C) will decrease the tire pressure to
approximately 24 psi (165 kPa). This tire pressure is
sufficiently low enough to turn ON the Tire Pressure
Monitoring Telltale Light. Driving the vehicle may cause
the tire pressure to rise to approximately 28 psi (193 kPa),
but the Tire Pressure Monitoring Telltale Light will stillbe ON. In this situation, the Tire Pressure Monitoring
Telltale Light will turn OFF only after the tires have been
inflated to the vehicle’s recommended cold tire pressure
value.
CAUTION!
•The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures have
been established for the tire size equipped on your
vehicle. Undesirable system operation or sensor
damage may result when using replacement
equipment that is not of the same size, type, and/or
style. Aftermarket wheels can cause sensor dam-
age. Do not use aftermarket tire sealants or balance
beads if your vehicle is equipped with a TPMS, as
damage to the sensors may result.
(Continued)
416 STARTING AND OPERATING

Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the front
and rear axles. The load must be distributed in the cargo
area so that the GAWR of each axle is not exceeded.
Each axle’s GAWR is determined by the components in
the system with the lowest load carrying capacity (axle,
springs, tires, or wheels). Heavier axles or suspension
components, sometimes specified by purchasers for in-
creased durability, does not necessarily increase the ve-
hicle’s GVWR.
Tire Size
The tire size on the label represents the actual tire size on
your vehicle. Replacement tires must be equal to the load
capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for
all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total weight
of the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo
loaded into the vehicle. The front and rear curb weight
values are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Loading
The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be determined
by weighing it when it is loaded and ready for operation.
5
STARTING AND OPERATING 437

Towing Requirements – Tires

Do not attempt to tow a trailer while using a compact
spare tire.
Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires – General Information” in “Starting and Oper-
ating” for proper tire inflation procedures.
Check the trailer tires for proper tire inflation pres-
sures before trailer usage.
Check for signs of tire wear or visible tire damage
before towing a trailer. Refer to “Tires – General
Information” in “Starting and Operating” for proper
inspection procedure.
When replacing tires, refer to “Tires – General Infor-
mation” in “Starting and Operating” for proper tire replacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.
Towing Requirements – Trailer Brakes

Do
not interconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
An electronically-actuated trailer brake controller is
required when towing a trailer with electronically-
actuated brakes. When towing a trailer equipped with
a hydraulic surge-actuated brake system, an electronic
brake controller is not required.
Trailer brakes are recommended for trailers over
1,000 lbs (454 kg), and required for trailers in excess of
2,000 lbs (907 kg).
448 STARTING AND OPERATING

Infant Restraint........................ 82,83
Inflation Pressure Tires .................... 404
Information Center, Vehicle ................. 258
Inside Rearview Mirror ................... 108
Instrument Cluster .................... 247,248
Instrument Panel and Controls .............. 246
Instrument Panel Lens Cleaning ............. 519
Integrated Power Module (Fuses) ............ 520
Interior Appearance Care .................. 518
Intermittent Wipers (Delay Wipers) ........... 156
Introduction ............................. 4
Inverter, Power ......................... 226
Jack Location ........................... 464
Jack Operation ....................... 463,466
Jacking Instructions ...................... 466
Jump Starting .......................... 471 Key-In Reminder
......................... 18
Key, Programming ........................ 20
Key, Replacement ........................ 20
Key, Sentry (Immobilizer) ................... 19
Keyless Enter-N-Go ................. 36,277,344
Keyless Entry System ...................... 23
Keyless Go .......................... 14,277
Keys ................................. 14
Lap/Shoulder Belts ....................... 52
LATCH
(Lower Anchors and Tether for CHildren) .....86,88
Latches ............................... 100
Lead Free Gasoline ...................... 424
Leaks, Fluid ........................... 100
Life of Tires ............................ 410
Liftgate ................................ 44
Liftgate Flipper Glass ...................... 45
Liftgate Window Wiper/Washer ............. 237
572 INDEX

Light Bulbs............................ 100
Lights ............................. 100,146
Airbag ...................... 75,76,81,98,248
Anti-Lock ........................... 255
Automatic Headlights ................... 147
Back-Up ............................ 530
Brake Assist Warning ................... 392
Brake Warning ........................ 253
Bulb Replacement ...................... 527
Cargo .............................. 233
Center Mounted Stop ................... 532
Daytime Running ...................... 149
Dimmer Switch, Headlight ............... 146
Electronic Stability Program (ESP) Indicator . . . 392
Exterior ............................. 100
Fog ............................. 250,528
Fuses ............................... 520
Hazard Warning Flasher ................. 462
Headlights ........................... 527 Headlights On With Wipers
............... 147
High Beam Indicator .................... 250
Hill Descent Control Indicator ............. 250
Illuminated Entry ....................... 23
Low Fuel ............................ 268
Malfunction Indicator (Check Engine) ........ 248
Map Reading ......................... 152
Reading .......................... 152,206
Rear Servicing ........................ 530
Rear Tail ............................ 530
Seat Belt Reminder ..................... 253
Security Alarm (Theft Alarm) .............. 256
Service ............................. 527
Service Engine Soon (Malfunction Indicator) . . . 248
Side Marker .......................... 530
SmartBeams .......................... 148
Tire Pressure Monitoring (TPMS) ........... 251
Tow/Haul Indicator .................... 250
Traction Control ....................... 392
10
INDEX 573

Rear Park Sense System................... 195
Rear Seat, Folding ....................... 137
Rear Window Defroster ................... 238
Rear Window Features .................... 237
Rear Wiper/Washer ...................... 237
Rearview Mirrors ........................ 108
Reclining Front Seats ..................... 127
Recorder, Event Data ...................... 81
Recreational Towing ...................... 453
Shifting into Transfer Case Neutral (N) ....... 456
Shifting out of Transfer Case Neutral (N) ..... 459
Reformulated Gasoline .................... 425
Refrigerant ............................ 496
Reminder, Seat Belt ....................... 65
Remote Control Starting System ........................ 29
Remote Keyless Entry (RKE) ................. 23
Remote Sound System (Radio) Controls ........ 321
Remote Starting System .................... 29 Replacement Bulbs
....................... 526
Replacement Keys ........................ 20
Replacement Parts ....................... 487
Replacement Tires ....................... 411
Reporting Safety Defects ................... 558
Restraints, Child ......................... 82
Restraints, Occupant ...................... 48
Retractable Cargo Area Cover ............... 234
Roll Over Warning ........................ 5
Rotation, Tires .......................... 414
Safety Checks Inside Vehicle ................. 98
Safety Checks Outside Vehicle ............... 100
Safety Defects, Reporting .................. 558
Safety Information, Tire ................... 394
Safety Tips ............................. 96
Safety, Exhaust Gas ..................... 48,97
Satellite Radio (uconnect™ studios) ........... 320
Satellite Radio Antenna ................... 309
10
INDEX 577