2010 JEEP GRAND CHEROKEE inflation pressure

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

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

Sway Control, Trailer..................... 278
Synthetic Engine Oil ...................... 371
System, Remote Starting .................... 25
Tachometer ............................ 161
Telescoping Steering Column ............... 114
Temperature Control, Automatic (ATC) ........ 224
Temperature Gauge, Engine Coolant .......... 163
Tether Anchor, Child Restraint ............... 65
Theft System Arming ...................... 19
Theft System Disarming .................... 20
Tie Down Hooks, Cargo ................... 145
Tilt Steering Column ..................... 114
Time Delay, Headlight .................... 108
Tire and Loading Information Placard ......291,292
Tire Identification Number (TIN) ............. 288
Tire Markings .......................... 284
Tire Safety Information .................... 284
Tires ............................ 74,295,443Air Pressure
.......................... 296
Chains .............................. 302
Changing ............................ 348
Compact Spare ........................ 298
General Information .................... 295
High Speed .......................... 298
Inflation Pressures ..................... 296
Jacking ............................. 348
Life of Tires .......................... 301
Load Capacity ..................... 291,292
Pressure Monitor System (TPMS) ........... 304
Pressure Warning Light .................. 162
Quality Grading ....................... 443
Radial .............................. 298
Replacement ......................... 301
Rotation ............................ 303
Safety .............................. 284
Sizes ............................... 286
Spare Tire ........................... 349
462 INDEX