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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 the front
or rear GAWR. Refer to “Vehicle Loading/Vehicle Certi-
fication Label” in “Starting And Operating” for further
information.
WARNING!
It is important that you do not exceed the maximum
front or rear GAWR. A dangerous driving condition
can result if either rating is exceeded. You could lose
control of the vehicle and have a collision.
Tongue Weight (TW)
The tongue weight is the downward force exerted on the
hitch ball by the trailer. The recommended tongue weight
5
STARTING AND OPERATING 515
Page 524 of 671

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
•
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 (450 kg) and required for trailers in excess of
2,000 lbs (907 kg).
522 STARTING AND OPERATING
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CAUTION!
If the trailer weighs more than 1,000 lbs (450 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.
WARNING!
•Do not connect trailer brakes to your vehicle’s
hydraulic 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 a
collision.
• Towing any trailer will increase your stopping
distance. When towing, you should allow for addi-
tional space between your vehicle and the vehicle
(Continued)
WARNING! (Continued)
in front of you. Failure to do so could result in a
collision.
Towing Requirements — Trailer Lights And Wiring
Whenever you pull a trailer, regardless of the trailer size,
stop lights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package may include a four-pin and
seven-pin wiring harness. Use a factory approved trailer
harness and connector.
NOTE:Do not cut or splice wiring into the vehicle’s
wiring harness.
The electrical connections are all complete to the vehicle,
but you must mate the harness to a trailer connector.
Refer to the following illustrations.
5
STARTING AND OPERATING 523
Page 665 of 671

SteeringColumn Controls ...................... .239
Column Lock ......................... .248
Tilt Column .......................... .248
Wheel, Heated ........................ .249
Wheel, Tilt ........................... .248
Steering Wheel Audio Controls ...............392
Steering Wheel Mounted Sound System Controls . . .392
Storage ............................... .616
Storage, Vehicle .......................... .408
Stuck, Freeing ........................... .559
Sunglasses Storage ....................... .270
Sun Roof .............................. .279
Sun Visor Extension ...................... .125
Supplemental Restraint System - Air Bag .........63
System, Remote Starting .....................30
Telescoping Steering Column .................248
Temperature Control, Automatic (ATC) ..........406Text Messaging
.......................... .162
Tilt Steering Column ...................... .248
Time Delay, Headlight ..................... .235
Tire And Loading Information Placard .......476, 477
Tire Markings ........................... .469
Tire Rotation ............................ .583
Tires.........................112, 481, 487, 643
Aging (Life Of Tires) .....................491
Air Pressure .......................... .481
Chains .............................. .493
Changing ........................ .544, 547
Compact Spare ........................ .488
General Information ..................481, 487
High Speed .......................... .484
Inflation Pressures ...................... .482
Jacking ....................... .544, 546, 547
Life Of Tires .......................... .491
Load Capacity ..................... .476, 478
Pressure Monitor System (TPMS) ............495
10
INDEX 663