2005 JEEP GRAND CHEROKEE flat tire

2. 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 consump-
tion.
3. 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 the stability
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 either
the face of the driver’s door, or the driver’s side “B” pillar.
The “Cold Inflation Pressure” of each tire should be
checked and adjusted at least once every month. Check
Tire Placard Location
264 STARTING AND OPERATING

more often if subject to a wide range of outdoor tempera-
tures, as tire pressures vary with temperature changes.
Inflation pressures specified on the label are always
“Cold Inflation Pressure.” Cold inflation pressure is
defined as the tire pressure after the vehicle has been idle
for at least 3 hours, or driven less than a mile after a 3
hour period. The cold inflation pressure of each tire
should be set according to the manufacturers recom-
mended pressure, and must not exceed the maximum
values molded into the tire sidewall.
Tire pressures may increase from 13 to 40 kPa (2 to 6 psi)
[0.138 to 0.414 bar] during operation. DO NOT reduce
this normal pressure buildup.High Speed Operation
WARNING!
High speed driving with your vehicle under load is
dangerous. The added strain on your tires could
cause them to fail. You could have a serious accident.
Don’t drive a vehicle loaded to maximum capacity at
continuous speeds above 75 mph (120 km/h).
The manufacturer advocates driving at safe speeds
within posted speed limits. Where speed limits or condi-
tions are such that the vehicle can be driven at high
speeds, correct tire inflation pressure is very important.
STARTING AND OPERATING 265
5

Tread Wear Indicators
These indicators are narrow strips 1/16 inch (1.6 mm)
thick and are found in the tread pattern grooves.
When the tread pattern is worn down to these treadwear
indicators, the tires should be replaced.
Overloading your vehicle, long trips in very hot weather,
and driving on bad roads may result in greater wear.
Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct inflation pressure. The manufacturer
strongly recommends that you use tires equivalent to the
originals in quality and performance when replacement
is needed (see section on tread wear indicators). Failure
to use equivalent replacement tires may adversely affect
the safety, handling, ride and fuel economy of your
vehicle. We recommend that you contact your original
equipment tire dealer on any questions you may have on
tire specifications or capability.
STARTING AND OPERATING 267
5

will illuminate continuously (solid) and shall remain
illuminated until the warning condition is removed/
reset.
NOTE:The Indicator Lamp will only illuminate for the
four active road tires. A low spare tire pressure will not
cause the Indicator Lamp to illuminate
When the appropriate conditions exist, the Electronic
Vehicle Information Center (EVIC) displays the following
messages.
LEFT FRONT, LEFT REAR, RIGHT FRONT,
RIGHT REAR, SPARE LOW PRESSURE
One or more of these messages will be displayed in the
EVIC if a low tire pressure condition exists in one or more
tires.Inspect all tires for proper inflation pressure, once the
proper tire pressure has been set, the TPM system
warning will reset automatically when the vehicle has
been driven for at least 2 minutes at or above 15 mph (24
km/h).
CHECK TPM SYSTEM
See your authorized dealer when this message appears in
the EVIC. This message indicates that a system fault
condition has been detected.
STARTING AND OPERATING 273
5

Catalytic Converter...................... 321
Caution, Exhaust Gas..................... 140
CD Player..........................186,200
Cellular Phone.......................... 76
Center High Mounted Stop Light............ 356
Chains, Tire............................ 275
Changing A Flat Tire..................... 298
Chart, Tire Sizing........................ 256
Checks, Safety........................... 65
Child Restraint....................53,54,59,61
Child Restraint Tether Anchors.............58,59
Child Safety Locks........................ 16
Climate Control......................... 213
Clock................................ 188
Compact Disc Maintenance................. 212
Compass...........................178,182
Compass Calibration..................... 182
Compass Variance....................... 183
Computer, Trip/Travel.................... 178Console, Overhead....................... 137
Contract, Service........................ 386
Converter, Catalytic...................... 321
Cooling System......................... 329
Adding Coolant (Antifreeze).............. 331
Coolant Capacity...................... 357
Coolant Level......................... 332
Disposal of Used Coolant................ 332
Drain, Flush, and Refill.................. 330
Inspection........................... 329
Points to Remember.................... 333
Pressure Cap......................... 331
Radiator Cap......................... 331
Selection of Coolant..................330,357
Crankcase Emission Control System.......... 323
Cruise Control (Speed Control).............. 134
Cruise Light........................... 169
Cup Holder............................ 149
Customer Assistance..................... 384
394 INDEX

Speedometer......................... 164
Tachometer.......................... 166
Gear Ranges........................... 234
General Information....................20,275
Glass Cleaning.......................... 343
Hands-Free Phone........................ 76
Hazard Warning Flasher................... 296
Head Restraints......................... 101
Head Rests............................ 101
Headlights............................ 113
Bulb Replacement...................... 351
On With Wipers....................... 113
Replacing............................ 351
Heated Mirrors.......................... 74
Heated Seats........................... 102
Heater, Engine Block..................... 232
High Beam Indicator..................... 164
High Beam/Low Beam Select (Dimmer) Switch . . 116Holder, Cup........................... 149
Homelink Transmitter.................... 138
Hood Release.......................... 110
Hoses................................ 334
Identifying Your Engine................... 311
Ignition
Key ................................. 11
Illuminated Entry........................ 15
Infant Restraint........................53,54
Inflation Pressure Tires.................... 264
Information Center, Vehicle................. 171
Inside Rearview Mirror.................... 72
Instrument Cluster....................163,164
Instrument Panel and Controls.............. 162
Integrated Power Module.................. 348
Interior Appearance Care.................. 342
Interior Fuses.......................... 345
Interior Lighting........................ 111
398 INDEX

Steering Wheel Mounted Sound System
Controls............................. 211
Storage............................... 350
Storage, Behind the Seat................... 151
Storage Bin............................ 151
Storage Compartment, Center Seat........... 105
Storage, Vehicle......................224,350
Storing Your Vehicle...................... 350
Sun Roof.............................. 145
Sunglass Storage........................ 137
Supplemental Restraint System - Airbag........ 37
Tachometer............................ 166
Temperature Control, Automatic............. 218
Temperature Gauge, Engine Coolant.......... 167
Tether Anchor, Child Restraint............... 58
Tie Down Hooks, Cargo................... 153
Tilt Steering Column..................... 120
Time Delay, Headlight.................... 117Tire and Loading Information Placard......259,260
Tire Identification Number (TIN)............. 258
Tire Markings.......................... 254
Tire Safety Information.................... 254
Tires ...............................65,263
Air Pressure.......................... 264
Alignment and Balance.................. 268
Chains.............................. 275
Changing............................ 298
General Information.................... 263
High Speed.......................... 265
Inflation Pressures..................... 264
Jacking............................. 298
Load Capacity.....................259,260
Pressure Monitor System................. 269
Pressure Warning Light.................. 167
Radial.............................. 266
Replacement......................... 267
Rotation............................. 276
406 INDEX