2008 JEEP COMMANDER flat tire

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 ªTire Pressure Monitoring Telltale Lightº will
extinguish once the updated tire pressures have been
received. The vehicle may need to be driven for up to 10
minutes above 15 mph (24 km/h) to receive this infor-
mation.
The ªTire Pressure Monitoring Telltale Lightº 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. If the ignition key is cycled, this sequence will
repeat, providing the system fault still exists. The Tire
Pressure Monitoring Telltale Lamp will turn off when the
fault condition no longer exists. A system fault can occur
by any of the following scenarios:1. Jamming due to electronic devices or driving next to
facilities emitting the same Radio Frequencies as the TPM
sensors.
2. Installing some form of aftermarket window tinting
that affects radio wave signals.
3. Lots of snow or ice around the wheels or wheel
housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPM sensors.
NOTE:If your vehicle is equipped with a matching full
size spare wheel and tire assembly, it has a tire pressure
monitoring sensor, and can be monitored by the Tire
Pressure Monitoring System (TPMS). In the event that the
matching full size spare tire is swapped with a low
pressure road tire, the next ignition key cycle will still
show the ªTire Pressure Monitoring Telltale Lightº to be
ON, and a chime to sound. Driving the vehicle for up to
STARTING AND OPERATING 327
5

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
ªTire Pressure Monitoring Telltale Lightº will extinguish
once the updated tire pressure(s) have been received. The
vehicle may need to be driven for up to 10 minutes above
15 mph (24 km/h) to receive this information.
Check TPM System Message
The ªTire Pressure Monitoring Telltale Lightº 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 ªCHECK TPM SYS-
TEMº message for 3 seconds. This text message is then
followed by a graphic display, with ª- -ª in place of the
pressure value(s) indicating which Tire Pressure Moni-
toring Sensor(s) is not being received.
NOTE:Your system can be set to display pressure units
in PSI, kPa, or BAR.
330 STARTING AND OPERATING

Each axle 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 vehi-
cle'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.
The entire vehicle should first be weighed on a commer-
cial scale to insure that the GVWR has not been exceeded.
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
STARTING AND OPERATING 345
5

3. GAWR
4. Tongue weight rating for the trailer hitch utilized
(This requirement may limit the ability to always
achieve the 10% to 15% range of tongue weight as a
percentage of total trailer weight).
Towing Requirements Ð Tires
þ
Do not attempt to tow a trailer while using a compact
spare tire.
þProper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to the
ªTires±General Informationº section for proper tire
inflation procedures.
þAlso, check the trailer tires for proper tire inflation
pressures before trailer usage.
þCheck for signs of tire wear or visible tire damage
before towing a trailer. Refer to the ªTires±General
Informationº section of this manual for the proper
inspection procedure.
þWhen replacing tires, refer to the ªTires±General Infor-
mationº section of this manual for proper tire replace-
ment procedures. Replacing tires with a higher load
carrying capacity will not increase the vehicle's GVWR
and GAWR limits.
Towing Requirements Ð Trailer Brakes
þ
Donotinterconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
þAn electronically actuated trailer brake controller is
required when towing a trailer with electronically
STARTING AND OPERATING 355
5

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.
IF YOU NEED CONSUMER ASSISTANCE 455
9

Cargo Compartment...................... 174
Luggage Carrier....................... 177
Cargo Load Floor........................ 174
Catalytic Converter...................... 393
CD (Compact Disc) Player................. 239
Cellular Phone.......................... 82
Center High Mounted Stop Light............ 434
Certification Label....................... 344
Chains, Tire............................ 322
Changing A Flat Tire..................... 368
Chart, Tire Sizing........................ 308
Checks, Safety.........................71,72
Child Restraint....................60,61,65,67
Child Restraint Tether Anchors.............64,65
Child Safety Locks........................ 30
Climate Control......................... 257
Clock........................213,229,240,243
Cold Weather Operation................... 278
Command View Skylights.................. 168Compact Disc (CD) Maintenance............. 256
Compass.............................. 203
Compass Calibration..................... 204
Compass Variance....................... 204
Computer, Trip/Travel.................... 200
Connector
UCI ................................ 244
Universal Consumer Interface (UCI)......... 244
Console, Overhead....................... 158
Contract, Service........................ 450
Converter, Catalytic...................... 393
Cooling System......................... 401
Adding Coolant (Antifreeze).............. 403
Coolant Capacity...................... 435
Coolant Level......................... 405
Disposal of Used Coolant................ 405
Drain, Flush, and Refill.................. 402
Inspection........................401,405
Points to Remember.................... 405
460 INDEX

GVWR............................... 344
Hands-Free Phone (UConnectŸ).............. 82
Hard Drive (HDD)....................... 239
Hazard Warning Flasher................... 366
Head Restraints......................... 110
Head Rests............................ 110
Headlights............................ 125
Bulb Replacement...................... 428
Cleaning............................ 418
On With Wipers....................... 126
Replacing............................ 428
Heated Mirrors.......................... 81
Heated Seats........................... 111
Heater, Engine Block..................... 280
High Beam Indicator..................... 187
High Beam/Low Beam Select (Dimmer) Switch . . 129
Hill Descent Control..................... 150
Hill Start Assist......................... 148Hitches
Trailer Towing........................ 350
Holder, Cup........................... 172
HomeLinkt(Garage Door Opener) Transmitter . . . 159
Hood Release.......................... 123
Hoses................................ 406
Ignition............................... 16
Cables (Spark Plug Wires)................ 392
Key ...............................14,16
Wiring System (Spark Plug Wires).......... 392
Ignition Key Removal..................... 16
Illuminated Entry........................ 21
Immobilizer (Sentry Key)................... 17
Infant Restraint........................60,61
Inflation Pressure Tires.................... 316
Information Center, Vehicle................. 195
Inside Rearview Mirror.................... 78
Instrument Cluster....................186,187
INDEX 465
10

Remote.............................. 26
Steering
Power...........................305,398
Tilt Column.......................... 134
Wheel, Tilt........................... 134
Steering Wheel Mounted Sound System
Controls.............................. 254
Storage............................... 426
Storage, Vehicle......................270,426
Storing Your Vehicle...................... 426
Sun Roof.............................. 165
Sun Visor Extension....................... 81
Supplemental Restraint System - Airbag........ 48
Sway Control, Trailer..................... 147
Synthetic Engine Oil...................... 391
System, Navigation...................... 242
System, Remote Starting.................... 26
Tachometer............................ 189Telescoping Steering Column............... 134
Temperature Control, Automatic (ATC)........ 260
Temperature Gauge, Engine Coolant.......... 191
Tether Anchor, Child Restraint............... 64
Tilt Steering Column..................... 134
Time Delay, Headlight.................... 129
Tire and Loading Information Placard......... 311
Tire Identification Number (TIN)............. 310
Tire Markings.......................... 306
Tire Safety Information.................... 306
Tires ............................72,315,454
Air Pressure.......................... 316
Alignment and Balance.................. 321
Chains.............................. 322
Changing............................ 368
General Information.................... 315
High Speed.......................... 318
Inflation Pressures..................... 316
Jacking............................. 368
474 INDEX