WARNING!(Continued)
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.
• Failure to equip your vehicle with tires having ad-
equate 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 readings.
TIRE CHAINS (TRACTION DEVICES)
Use of traction devices require sufficient tire-to-body clear-
ance. Follow these recommendations to guard against
damage.
• Traction device must be of proper size for the tire, as
recommended by the traction device manufacturer. •
Install on rear tires only.
• Due to limited clearance, the THULE XG-12 PRO trac-
tion device or equivalent is recommended on P265/
60R18 or 265/50R20 tires.
WARNING!
Using tires of different size and type (M+S, Snow)
between front and rear axles can cause unpredictable
handling. You could lose control and have a collision.
CAUTION!
To avoid damage to your vehicle or tires, observe the
following precautions:
• Because of restricted traction device clearance be-
tween tires and other suspension components, it is
important that only traction devices in good condi-
tion are used. Broken devices can cause serious
damage. Stop the vehicle immediately if noise occurs
that could indicate device breakage. Remove the
damaged parts of the device before further use.
• Install device as tightly as possible and then re-
tighten after driving about ½ mile (0.8 km).
(Continued)
5
STARTING AND OPERATING 437
The TPMS will warn the driver of a low tire pressure if the
tire pressure falls below the low pressure warning thresh-
old for any reason, including low temperature effects, or
natural pressure loss through the tire.
The TPMS will continue to warn the driver of low tire
pressure as long as the condition exists, and will not turn
off until the tire pressure is at or above recommended cold
tire placard pressure. Once the low tire pressure warning
has been illuminated, the tire pressure must be increased to
the recommended cold tire pressure in order for the Tire
Pressure Monitoring Telltale Light to be turned off.
NOTE:When filling warm tires, the tire pressure may need
to be increased up to an additional 4 psi (30 kPa) above the
recommended cold placard pressure in order to turn the
Tire Pressure Monitoring Telltale Light off.
The system will automatically update and the Tire Pressure
Monitoring Telltale Light will extinguish once the updated
tire pressures 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.
For example, your vehicle has a recommended cold
(parked for more than three hours) tire placard pressure of
33 psi (227 kPa). If the ambient temperature is 68°F (20°C) and the measured tire pressure is 28 psi (193 kPa), a
temperature drop to 20°F (-7°C) will decrease the tire
pressure to approximately 24 psi (165 kPa). This tire
pressure is sufficiently low enough to turn ON the Tire
Pressure Monitoring Telltale Light. Driving the vehicle
may cause the tire pressure to rise to approximately 28 psi
(193 kPa), but the Tire Pressure Monitoring Telltale Light
will still be ON. In this situation, the Tire Pressure Moni-
toring Telltale Light will turn OFF only after the tires have
been inflated to the vehicle’s recommended cold tire pres-
sure value.
CAUTION!
•
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warnings have been established for the tire size
equipped on your vehicle. Undesirable system op-
eration or sensor damage may result when using
replacement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage. Using aftermarket tire sealants may
cause the Tire Pressure Monitoring System (TPMS)
(Continued)
440 STARTING AND OPERATING
Payload
The payload of a vehicle is defined as the allowable load
weight a truck can carry, including the weight of the driver,
all passengers, options and cargo.
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 commercial
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 the 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
452 STARTING AND OPERATING
CAUTION!
Driving with a hot cooling system could damage your
vehicle. If the temperature gauge reads HOT (H), pull
over and stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops back
into the normal range. If the pointer remains on HOT
(H), and you hear continuous chimes, turn the engine
off immediately and call for service.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to ensure that
the wheel is properly mounted to the vehicle. Any time a
wheel has been removed and reinstalled on the vehicle the
lug nuts/bolts should be torqued using a properly cali-
brated torque wrench.
Torque Specifications
Lug Nut/Bolt Torque **Lug Nut/Bolt SizeLug Nut/Bolt
Socket Size
130 Ft-Lbs (176 N·m) M14 x 1.50 22 mm
**Use only your Authorized Dealer recommended lug
nuts/bolts and clean or remove any dirt or oil before
tightening. Inspect the wheel mounting surface prior to mounting the
tire and remove any corrosion or loose particles.
Tighten the lug nuts/bolts in a star pattern until each
nut/bolt has been tightened twice.
After 25 miles (40 km) check the lug nut/bolt torque to be
sure that all the lug nuts/bolts are properly seated against
the wheel.
Wheel Mounting Surface
6
WHAT TO DO IN EMERGENCIES 475
Remote................................23
Starting And Operating ..................... .379
Starting Procedures ........................ .379
Steering Power ............................... .403
Tilt Column ........................ .147, 148
Wheel, Heated ......................... .149
Wheel, Tilt ......................... .147, 148
Steering Wheel Audio Controls .................332
Steering Wheel Mounted Sound System Controls . . . .332
Storage ................................. .540
Storage, Vehicle ....................... .350, 540
Storing Your Vehicle ....................... .540
Sunglasses Storage ......................... .196
Sun Roof ............................... .203
Sun Visor Extension ........................ .101
Sway Control, Trailer ....................... .416
System, Remote Starting ......................23
Telescoping Steering Column ...............147, 148
Temperature Control, Automatic (ATC) ...........346
Tie Down Hooks, Cargo ..................... .221
Tilt Steering Column .....................147, 148
Tire And Loading Information Placard ........423, 424
Tire Markings ............................ .417Tires ......................
.88, 427, 431, 432, 563
Aging (Life Of Tires) ..................... .435
Air Pressure ........................... .427
Chains ............................... .437
Changing .......................... .476, 487
Compact Spare ......................... .432
Flat Changing .......................... .487
General Information ................427, 431, 432
High Speed ............................ .429
Inflation Pressures ....................... .428
Jacking ............................... .476
Life Of Tires ........................... .435
Load
Capacity ...................... .423, 424
Pressure Warning Light ....................248
Quality Grading ........................ .563
Radial ............................... .429
Replacement ........................ .436, 487
Rotation .............................. .438
Safety ............................ .417, 427
Sizes ................................ .419
Snow Tires ............................ .431
Spare Tire .................431, 432, 433, 434, 477
Spinning .............................. .434
Trailer Towing .......................... .461
Tread Wear Indicators .....................435
578 INDEX