2010 JEEP GRAND CHEROKEE flat tire

•Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in
the tire.
Base System
The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim-mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire pressure
readings to the Receiver Module.
NOTE:It is particularly important, for you to regularly
check the tire pressure in all of your tires, and to maintain
the proper pressure.
The TPMS consists of the following components:
•Receiver Module
•Four Tire Pressure Monitoring Sensors
•Tire Pressure Monitoring Telltale Light A tire pressure monitoring sensor is located in the spare
wheel, if the vehicle is equipped with a matching full-size
spare wheel and tire assembly. The matching full-size
spare tire can be used in place of any of the four road
tires. A low spare tire will not cause the Tire Pressure
Monitoring Telltale Light to illuminate, a warning mes-
sage to appear, or the chime to sound.
The Tire Pressure Monitoring Telltale Light will
illuminate in the instrument cluster, a “TIRE LOW
PRESSURE” message will display in the instru-
ment cluster for 60 seconds, and an audible chime will be
activated, when one or more of the four active road tire
pressures are low. Should this occur, you should stop as
soon as possible, check the inflation pressure of each tire
on your vehicle, and inflate each tire to the vehicle’s
recommended cold placard pressure value. The system
will automatically update and the Tire Pressure Monitor-
ing Telltale Light will extinguish, once the updated tire
5
STARTING AND OPERATING 307

NOTE:Your system can be set to display pressure units
in PSI, kPa, or BAR.
Should a low tire condition occur on any of the four
active road tire(s), you should stop as soon as possible,
and inflate the low tire(s) that is “flashing” on the graphic
display to the vehicle’s recommended cold tire pressure. The system will automatically update, the graphic dis-
play of the pressure value(s) will stop “flashing,” and the
Tire Pressure Monitoring Telltale Light will extinguish
once the updated tire pressure(s) 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.
CHECK TPM SYSTEM Warning
The Tire Pressure Monitoring Telltale Light will flash on
and off for 75 seconds, and remain on solid when a
system fault is detected. The system fault will also sound
a chime. The EVIC will display a “CHECK TPM SYS-
TEM” message for three seconds. This message is then
followed by a graphic display, with “- -“ in place of the
pressure value(s), indicating which Tire Pressure Moni-
toring Sensor(s) is not being received.
5
STARTING AND OPERATING 311

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 cargoloaded 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.
The entire vehicle should first be weighed on a commer-
cial scale to ensure that the GVWR has not been ex-
ceeded. The weight on the front and rear of the vehicle
should then be determined separately to be sure that the
load is properly distributed over front and rear axle.
Weighing the vehicle may show that the GAWR of either
the front or rear axles has been exceeded, but the total
load is within the specified GVWR. If so, weight must be
shifted from front to rear, or rear to front, as appropriate
until the specified weight limitations are met. Store the
5
STARTING AND OPERATING 323

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 tirereplacement 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).
334 STARTING AND OPERATING

Jacking Instructions
WARNING!
Carefully follow these tire changing warnings to
help prevent personal injury or damage to your
vehicle:
•Always park on a firm, level surface as far from
the edge of the roadway as possible before raising
the vehicle.
•Block the wheel diagonally opposite the wheel to
be raised.
•Set the parking brake firmly and set an automatic
transmission in PARK; a manual transmission in
REVERSE.
•Never start or run the engine with the vehicle on a
jack.
•Do not let anyone sit in the vehicle when it is on a
jack.(Continued)
WARNING! (Continued)
•Do not get under the vehicle when it is on a jack.
•Only use the jack in the positions indicated and
for lifting this vehicle during a tire change.
•If working on or near a roadway, be extremely
careful of motor traffic.
•To assure that spare tires, flat or inflated, are
securely stowed, spares must be stowed with the
valve stem facing the ground.
•Turn on the Hazard Warning flasher.
Jack Warning Label
6
WHAT TO DO IN EMERGENCIES 351

Temperature Grades
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of heat
and its ability to dissipate heat, when tested under
controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the
material of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire failure. The
grade C corresponds to a level of performance, which all
passenger car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A repre-
sent higher levels of performance on the laboratory test
wheel, than the minimum required by law.WARNING!
The temperature grade for this tire is established for
a tire that is properly inflated and not overloaded.
Excessive speed, under-inflation, or excessive load-
ing, either separately or in combination, can cause
heat buildup and possible tire failure.
444 IF YOU NEED CONSUMER ASSISTANCE

Light............................... 143
Luggage Carrier ....................... 150
Cargo Light ............................ 143
Cargo Load Floor ........................ 147
Cargo Tie-Downs ........................ 145
Cargo (Vehicle Loading) ................... 322
Cellular Phone ........................ 84,221
Center High Mounted Stop Light ............ 412
Certification Label ....................... 322
Chains, Tire ............................ 302
Changing A Flat Tire ..................... 348
Chart, Tire Sizing ........................ 286
Check Engine Light
(Malfunction Indicator Light) ............... 366
Checking Your Vehicle For Safety ............. 72
Checks, Safety ........................... 72
Child Restraint ...................... 61,66,68
Child Restraint Tether Anchors .............65,66
Child Safety Locks ........................ 29 Climate Control
......................... 221
Clock ........................ 184,185,189,198
Cold Weather Operation ................... 241
Compact Disc (CD) Maintenance ............. 220
Compact Spare Tire ...................... 298
Compass .............................. 176
Compass Calibration ..................... 177
Compass Variance ....................... 177
Computer, Trip/Travel .................... 173
Connector UCI ................................ 209
Universal Consumer Interface (UCI) ......... 209
Conserving Fuel ........................ 174
Console, Overhead ....................... 127
Contract, Service ........................ 439
Cooling System ......................... 380
Adding Coolant (Antifreeze) .............. 382
Coolant Capacity ...................... 413
Coolant Level ......................... 384
448 INDEX

Head Rests............................. 88
Headlights .......................... 102,407
Bulb Replacement ...................... 408
Cleaning ............................ 397
On With Wipers ....................... 103
Replacing ........................... 408
Heated Mirrors .......................... 83
Heated Seats .......................... 89,91
Heater, Engine Block ..................... 242
High Beam Indicator ..................... 159
High Beam/Low Beam Select (Dimmer) Switch . . 108
Hill Descent Control ..................... 281
Hill Start Assist ......................... 278
Hitches Trailer Towing ........................ 328
Holder, Cup ........................... 142
HomeLink (Garage Door Opener) Transmitter . . . 128
Hood Release .......................... 100 Ignition
............................... 15
Key ............................... 14,15
Ignition Key Removal ..................... 15
Illuminated Entry ........................ 20
Immobilizer (Sentry Key) ................... 17
Infant Restraint .......................... 61
Inflation Pressure Tires .................... 296
Information Center, Vehicle ................. 168
Inside Rearview Mirror .................... 80
Instrument Cluster .................... 157,158
Instrument Panel and Controls .............. 156
Instrument Panel Lens Cleaning ............. 397
Integrated Power Module (Fuses) ............ 404
Interior Appearance Care .................. 396
Interior Fuses .......................... 398
Interior Lighting ........................ 108
Interior Lights .......................... 108
Intermittent Wipers (Delay Wipers) ........... 110
Introduction ............................. 4
10
INDEX 453