2004 JEEP GRAND CHEROKEE inflation pressure

WARNING!
Overloading of your tire is dangerous. Overloading
can cause tire failure, affect vehicle handling, and
increase your stopping distance. Use tires of the
recommended load capacity for your vehicle. Never
overload them.
TIRES Ð GENERAL INFORMATION
Proper tire inflation pressure is essential to the safe and
satisfactory operation of your vehicle. Three primary
areas are affected by improper tire pressure:1. SafetyÐ
WARNING!
Improperly inflated tires are dangerous and can
cause accidents.
²Under inflation increases tire flexing and can
result in tire failure.
²Over inflation reduces a tire's ability to cushion
shock. Objects on the road and chuck holes can cause
damage that results in tire failure.
²Unequal tire pressures can cause steering prob-
lems. You could lose control of your vehicle.
²Overinflated or under inflated tires can affect
vehicle handling and can fail suddenly, resulting in
loss of vehicle control.
Always drive with each tire inflated to the recom-
mended pressure.
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5

2. EconomyÐ
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 StabilityÐ
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 for passenger cars
is listed on either the face of the driver's door or the
driver's side ªBº pillar. For vehicles other than passenger
cars, the cold tire inflation pressures are listed on either
the ªBº pillar or the Certification Label.
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The tire pressure should be checked and adjusted at least
once every month. Check more often if subject to a wide
range of outdoor temperatures, as tire pressures vary
with temperature changes.
Inflation pressures specified on the label are always
ªCold Inflation Pressure.º 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 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.
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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 manufacture
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.
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Gasoline.............................. 221
Gasoline, Reformulated................... 222
Gasoline/Oxygenate Blends................ 222
Gauges
Coolant Temperature.................... 131
Fuel................................ 133
Odometer........................... 132
Oil Pressure.......................... 130
Speedometer......................... 129
Tachometer.......................... 129
Voltmeter............................ 129
Gear Ranges........................... 181
General Information...................... 219
Glass Cleaning.......................... 284
Glove Compartment...................... 116
Hazard Warning Flasher................... 236
Head Restraints.......................... 64
Head Rests............................. 64Headlights............................. 77
High Beam........................... 129
On With Wipers........................ 77
Heated Mirrors.......................... 61
Heated Seats............................ 71
Heater, Engine Block..................... 178
Holder, Cup........................... 116
Homelink Transmitter.................... 106
Hood Release........................... 74
Hoses................................ 274
Identifying Your Engine................251,252
Ignition
Key ................................. 11
Illuminated Entry........................ 15
Infant Restraint.......................... 44
Inflation Pressure Tires.................... 212
Information Center, Vehicle................. 90
Inside Rearview Mirror.................... 59
334 INDEX

Supplemental Restraint System - Airbag........ 35
System, Navigation...................... 152
Tachometer............................ 129
Tape Player............................ 147
Temperature Control, Automatic............. 167
Temperature Gauge, Engine Coolant.......... 131
Tether Anchor, Child Restraint............... 47
Theft System Arming...................... 23
Theft System Disarming.................... 23
Tie Down Hooks, Cargo................... 119
Tilt Steering Column...................... 84
Time Delay, Headlight..................... 80
Tire and Loading Information Placard......... 207
Tire Identification Number (TIN)............. 206
Tire Markings.......................... 203
Tire Safety Information.................... 203
Tires ...............................53,211
Air Pressure.......................... 212Alignment and Balance.................. 217
Chains.............................. 220
Changing.........................238,242
Compact Spare........................ 241
General Information.................... 211
High Speed.......................... 213
Inflation Pressures..................... 212
Jacking............................. 242
Load Capacity.....................207,208
Pressure Monitor System...............92,217
Radial.............................. 214
Replacement......................... 215
Rotation..........................218,220
Safety............................53,203
Sizes............................... 204
Spare Tire........................... 239
Spinning............................ 214
Tread Wear Indicators................... 215
Wheel Mounting....................... 244
342 INDEX