trailer JEEP WRANGLER 2017 JK / 3.G User Guide

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
weight limitations are met. Store the heavier items down
low and be sure that the weight is distributed equally. Stow
all loose items securely before driving.
Improper weight distributions can have an adverse effect
on the way your vehicle steers and handles and the way
the brakes operate.
CAUTION!
Do not load your vehicle any heavier than the GVWR
or the maximum front and rear GAWR. If you do, parts
on your vehicle can break, or it can change the way
your vehicle handles. This could cause you to lose
control. Also overloading can shorten the life of your
vehicle.
TRAILER TOWING
In this section you will find safety tips and information on
limits to the type of towing you can reasonably do with
your vehicle. Before towing a trailer, carefully review this
information to tow your load as efficiently and safely as
possible.
To maintain the New Vehicle Limited Warranty coverage,
follow the requirements and recommendations in this
manual concerning vehicles used for trailer towing.
6
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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 informa-
tion.
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the weight of all
cargo, consumables and equipment (permanent or tempo-
rary) 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 infor-
mation.
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.
Tongue Weight (TW)
The tongue weight is the downward force exerted on the
hitch ball by the trailer. You must consider this as part of
the load on your vehicle.
Frontal Area
The frontal area is the maximum height multiplied by the
maximum width of the front of a trailer.
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Trailer Sway Control – If Equipped
The trailer sway control is a telescoping link that can be
installed between the hitch receiver and the trailer tongue.
It typically provides adjustable friction associated with the
telescoping motion to dampen any unwanted trailer sway-
ing motions while traveling.
Weight-Carrying Hitch
A weight-carrying hitch supports the trailer tongue weight,
just as if it were luggage located at a hitch ball or some
other connecting point of the vehicle. These kinds of
hitches are the most popular on the market today and they
are commonly used to tow small and medium sized
trailers.
Weight-Distributing Hitch
A weight-distributing system works by applying leverage
through spring (load) bars. They are typically used for
heavier loads to distribute trailer tongue weight to the tow
vehicle’s front axle and the trailer axle(s). When used in
accordance with the manufacturer’s directions, it provides
for a more level ride, offering more consistent steering and
brake control thereby enhancing towing safety. The addi-
tion of a friction/hydraulic sway control also dampens
sway caused by traffic and crosswinds and contributespositively to tow vehicle and trailer stability. Trailer sway
control and a weight distributing (load equalizing) hitch
are recommended for heavier Tongue Weights (TW) and
may be required depending on vehicle and trailer
configuration/loading to comply with Gross Axle Weight
Rating (GAWR) requirements.
WARNING!
•
An improperly adjusted Weight Distributing Hitch
system may reduce handling, stability, braking per-
formance, and could result in a collision.
• Weight Distributing Systems may not be compatible
with Surge Brake Couplers. Consult with your hitch
and trailer manufacturer or a reputable Recreational
Vehicle dealer for additional information.6
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Trailer Hitch Classification
The following chart provides the industry standard for the
maximum trailer weight a given trailer hitch class can tow
and should be used to assist you in selecting the correct
trailer hitch for your intended towing condition.
Trailer Hitch Classification Definitions
Class Max. Trailer Hitch Industry Standards
Class I - Light Duty 2,000 lbs (907 kg)
Class II - Medium Duty 3,500 lbs (1 587 kg)
Class III - Heavy Duty 5,000 lbs (2 267 kg)
Class IV - Extra Heavy Duty 10,000 lbs (4 535 kg)
Refer to the “Trailer Towing Weights (Maximum Trailer Weight Ratings)” chart for the Maximum Gross Trailer Weight
(GTW) towable for your given drivetrain.
All trailer hitches should be professionally installed on your vehicle.
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Trailer Towing Weights (Maximum Trailer Weight Ratings)
Engine/
Transmission Axle
Model GCWR
(Gross Com- bined Wt.Rating) Frontal Area
Max. GTW
(Gross Trailer Wt.) Max. Trailer
Tongue Wt. (See Note)
3.6L/Manual 3.21 Two–Door Sport Model(4WD) 6,900 lbs (3
130 kg) 25 sq ft (2.32
sq m) 2,000 lbs
(907 kg) 200 lbs (91 kg)
3.6L/Manual 3.73 Two–Door Sport Model(4WD) 8,400 lbs (3
810 kg) 25 sq ft (2.32
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/
Automatic 3.21 Two–Door
Sport Model(4WD) 6,900 lbs (3
130 kg) 25 sq ft (2.32
sq m) 2,000 lbs
(907 kg) 200 lbs (91 kg)
3.6L/
Automatic 3.73 Two–Door
Sport Model(4WD) 8,400 lbs (3
810 kg) 25 sq ft (2.32
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/Manual 3.21 Two–Door Sahara Model(4WD) 7,000 lbs (3
175 kg) 25 sq ft (2.32
sq m) 2,000 lbs
(907 kg) 200 lbs (91 kg)
3.6L/Manual 3.73 Two–Door Sahara Model(4WD) 8,500 lbs (3
856 kg) 25 sq ft (2.32
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
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Engine/
Transmission Axle
Model GCWR
(Gross Com- bined Wt.Rating) Frontal Area
Max. GTW
(Gross Trailer Wt.) Max. Trailer
Tongue Wt. (See Note)
3.6L/
Automatic 3.21 Two–Door
Sahara Model(4WD) 7,000 lbs (3
175 kg) 25 sq ft (2.32
sq m) 2,000 lbs
(907 kg) 200 lbs (91 kg)
3.6L/
Automatic 3.73 Two–Door
Sahara Model(4WD) 8,500 lbs (3
856 kg) 25 sq ft (2.32
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/Manual 4.10 Two–Door Rubicon
Model (4WD) 8,600 lbs (3
900 kg) 25 sq ft (2.32
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/
Automatic 3.73 Two–Door
Rubicon
Model (4WD) 8,600 lbs (3
900 kg) 25 sq ft (2.32
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/
Automatic 4.10 Two–Door
Rubicon
Model (4WD) 8,600 lbs (3
900 kg) 25 sq ft (2.32
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/Manual 3.21 Four–Door Sport Model(4WD) 7,400 lbs (3
357 kg) 32 sq ft (2.97
sq m) 2,000 lbs
(907 kg) 200 lbs (91 kg)
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Engine/
Transmission Axle
Model GCWR
(Gross Com- bined Wt.Rating) Frontal Area
Max. GTW
(Gross Trailer Wt.) Max. Trailer
Tongue Wt. (See Note)
3.6L/Manual 3.73 Four–Door Sport Model(4WD) 8,900 lbs (4
037 kg) 32 sq ft (2.97
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/
Automatic 3.21 Four–Door
Sport Model(4WD) 7,400 lbs (3
357 kg) 32 sq ft (2.97
sq m) 2,000 lbs
(907 kg) 200 lbs (91 kg)
3.6L/
Automatic 3.73 Four–Door
Sport Model(4WD) 8,900 lbs (4
037 kg) 32 sq ft (2.97
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/Manual 3.21 Four–Door Sahara Model(4WD) 7,500 lbs (3
402 kg) 32 sq ft (2.97
sq m) 2,000 lbs
(907 kg) 200 lbs (91 kg)
3.6L/Manual 3.73 Four–Door Sahara Model(4WD) 9,000 lbs (4
082 kg) 32 sq ft (2.97
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/
Automatic 3.21 Four–Door
Sahara Model(4WD) 7,500 lbs (3
402 kg) 32 sq ft (2.97
sq m) 2,000 lbs
(907 kg) 200 lbs (91 kg)
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Engine/
Transmission Axle
Model GCWR
(Gross Com- bined Wt.Rating) Frontal Area
Max. GTW
(Gross Trailer Wt.) Max. Trailer
Tongue Wt. (See Note)
3.6L/
Automatic 3.73 Four–Door
Sahara Model(4WD) 9,000 lbs (4
082 kg) 32 sq ft (2.97
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/Manual 4.10 Four–Door Rubicon
Model (4WD) 9,200 lbs (4
173 kg) 32 sq ft (2.97
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/
Automatic 3.73 Four–Door
Rubicon
Model (4WD) 9,200 lbs (4
173 kg) 32 sq ft (2.97
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
3.6L/
Automatic 4.10 Four–Door
Rubicon
Model (4WD) 9,200 lbs (4
173 kg) 32 sq ft (2.97
sq m) 3,500 lbs (1
587 kg) 350 lbs
(158 kg)
Refer to local laws for maximum trailer towing speeds.
NOTE: The trailer tongue weight must be considered as
part of the combined weight of occupants and cargo (ie. the
GVWR), and the GVWR should never exceed the weight
referenced on the Tire and Loading Information placard.
Refer to “Tire Safety Information” in “Servicing And
Maintenance” for further information.
322 STARTING AND OPERATING

Trailer And Tongue Weight
Never exceed the maximum tongue weight stamped on
your bumper or trailer hitch.
Consider the following items when computing the weight
on the rear axle of the vehicle:
•The tongue weight of the trailer.
• The weight of any other type of cargo or equipment put
in or on your vehicle.
• The weight of the driver and all passengers. NOTE:
Remember that everything put into or on the
trailer adds to the load on your vehicle. Also, additional
factory-installed options or dealer-installed options must
be considered as part of the total load on your vehicle.
Refer to the “Tire And Loading Information” placard for
the maximum combined weight of occupants and cargo for
your vehicle.
Towing Requirements — Tires
• Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires – General Information” in “Servicing And Main-
tenance” for proper tire inflation procedures.
• Check the trailer tires for proper tire inflation pressures
before trailer usage.
• Check for signs of tire wear or visible tire damage before
towing a trailer. Refer to “Tires – General Information”
in “Servicing And Maintenance” for proper inspection
procedure.
• When replacing tires, refer to “Tires – General Informa-
tion” in “Servicing And Maintenance” for proper tire
replacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.6
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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 per-
sonal injury.
• An electronically actuated trailer brake controller is
required when towing a trailer with electronically actu-
ated 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 (453 kg) and required for trailers in excess of
2,000 lbs (907 kg).
WARNING!
• Do not connect trailer brakes to your vehicle’s hy-
draulic brake lines. It can overload your brake sys-
tem 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 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 a collision.
CAUTION!
If the trailer weighs more than 1,000 lbs (453 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.
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 will include a four–pin wiring
harness. Use a factory-approved trailer harness and con-
nector.
NOTE: Do not cut or splice wiring into the vehicles wiring
harness.
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