WARNING!
•Do not use a tire, wheel size or rating other than
that specified for your vehicle. Some combinations
of unapproved tires and wheels may change sus-
pension dimensions and performance characteris-
tics, resulting in changes to steering, handling, and
braking of your vehicle. This can cause unpredict-
able handling and stress to steering and suspen-
sion components. You could lose control and have
a collision resulting in serious injury or death. Use
only the tire and wheel sizes with load ratings
approved for your vehicle.
• Never use a tire with a smaller load index or
capacity, other than what was originally equipped
on your vehicle. Using a tire with a smaller load
index could result in tire overloading and failure.
You could lose control and have a collision.
(Continued)
WARNING! (Continued)
•Failure to equip your vehicle with tires having
adequate speed capability can result in sudden tire
failure and loss of vehicle control.
CAUTION!
Replacing original tires with tires of a different size
may result in false speedometer and odometer read-
ings.
SUPPLEMENTAL TIRE PRESSURE INFORMATION
— IF EQUIPPED
A light load vehicle condition is defined as two passen-
gers [150 lbs (68 kg) each] plus 200 lbs (91 kg) of cargo.
Cold tire inflation pressures for a lightly loaded vehicle
will be found on the face of the driver’s door.
5
STARTING AND OPERATING 551
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the front
and rear axles. The load must be distributed in the cargo
area so that the GAWR of each axle is not exceeded.
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 Vehicle Certification 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.
580 STARTING AND OPERATING
Common Towing Definitions
The following trailer towing related definitions will assist
you in understanding the following information:
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total allowable weight of your vehicle.
This includes driver, passengers, cargo and tongue
weight. The total load must be limited so that you do not
exceed the GVWR. Refer to “Vehicle Loading/Vehicle
Certification Label” in “Starting and Operating” for
further information.
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the weight of all
cargo, consumables and equipment (permanent or tem-
porary) loaded in or on the trailer in itsloaded and
ready for operation condition. The recommended way to measure GTW is to put your fully loaded trailer on a
vehicle scale. The entire weight of the trailer must be
supported by the scale.
Gross Combination Weight Rating (GCWR)
The GCWR is the total permissible weight of your vehicle
and trailer when weighed in combination.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum capacity of the front and rear
axles. Distribute the load over the front and rear axles
evenly. Make sure that you do not exceed either front or
rear GAWR. Refer to “Vehicle Loading/Vehicle Certifica-
tion Label” in “Starting and Operating” for further
information.
582 STARTING AND OPERATING
WARNING!(Continued)
3. GAWR
4. Tongue weight rating for the trailer hitch utilized.
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 the
proper inspection procedure. •
When replacing tires, refer to “Tires – General Infor-
mation” in “Starting and Operating” for proper tire
replacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.Towing Requirements — Trailer Brakes
WARNING!
•Do not connect trailer brakes to your vehicle’s hy-
draulic brake lines. It can overload your brake system
and cause it to fail. You might not have brakes when
you need them and could have an accident.
•Towing any trailer will increase your stopping dis-
tance. When towing you should allow for additional
space between your vehicle and the vehicle in front
of you. Failure to do so could result in an accident.
592 STARTING AND OPERATING
CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
• 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
1,653 lbs (750 kg).
Integrated Trailer Brake Module — If Equipped
Your vehicle may have an Integrated Trailer Brake Mod-
ule (ITBM) for Electric and Electric Over Hydraulic
(EOH) trailer brakes.
NOTE: This module has been designed and verified with
electric trailer brakes and new electric over hydraulic
systems. Some previous EOH systems may not be com-
patible with ITBM.
5
STARTING AND OPERATING 593
Fluid Leaks.............................119
Fluid Level Checks Brake ............................... .705
Power Steering .........................511
Fluids, Lubricants and Genuine Parts ...........744
Fog Lights ............................. .167
Fold Flat Load Floor ...................... .238
Four-Way Hazard Flasher ...................617
Four Wheel Drive ........................ .429
Freeing A Stuck Vehicle .....................663
Front Axle (Differential) .....................706
Fuel .................................. .568
Adding ............................. .577
Additives ............................ .571
Clean Air ............................ .569
Ethanol ............................. .569
Filler Cap (Gas Cap) .....................579
Gasoline ............................. .568
Materials Added ....................... .571Methanol
............................ .569
Octane Rating ......................... .568
Requirements ......................... .568
Tank Capacity ......................... .742
Fuel, Flexible ........................... .573
Fuel System Caution ...................... .577
Fuses ................................. .720
Garage Door Opener (HomeLink®) ............207
Gas Cap (Fuel Filler Cap) ...................579
Gasoline, Clean Air ....................... .569
Gasoline (Fuel) .......................... .568
Gasoline, Reformulated .....................569
Gauges Speedometer ......................... .283
Tachometer ........................... .278
Gear Ranges ............................ .407
Gear Select Lever Override ..................666
General
Information ........................32
Glass Cleaning .......................... .717
10
INDEX 775
Tire and Loading Information Placard...........535
Tire Markings ........................... .529
Tires ..................................119 Aging (Life of Tires) .....................549
Air Pressure .......................... .540
Chains .............................. .552
Compact Spare ........................ .546
Dual ............................... .555
General Information .....................540
High Speed .......................... .543
Inflation Pressures ...................... .541
Life of Tires .......................... .549
Load Capacity ........................ .535
Pressure Monitor System (TPMS) ............557
Pressure Warning Light ...................284
Quality Grading ....................... .767
Radial .............................. .543
Replacement .......................... .550
Rotation ............................. .554Safety
.............................. .529
Sizes ............................... .531
Snow Tires ........................... .544
Spinning ............................ .548
Tread Wear Indicators ....................548
Tire Safety Information .....................529
Tongue Weight/Trailer Weight ................589
Tonneau Cover .......................... .718
Tonneau Cover Cleaning ....................718
Torque Converter Clutch ....................417
Tow Hooks, Emergency .....................665
Towing ............................... .581
Disabled Vehicle ....................... .670
Guide .............................. .586
Recreational .......................... .606
Weight .............................. .586
T
raction ............................... .485
Traction Control ......................... .518
Trailer Sway Control (TSC) ..................528
784 INDEX