light JEEP WRANGLER 2006 TJ / 2.G Workshop Manual

Refer to the Trailer Towing Weights (Maximum Trailer
Weight Ratings) chart for the Max. GTW towable for your
given drivetrain.
Trailer Hitch Classification
Class Max. GTW (Gross Trailer Wt.)
Clas s 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 (2 268 kg)
Class IV - Extra
Heavy Duty 10,000 lbs (4 540 kg)
All trailer hitches should be professionally installed on
your vehicle.
Trailer Towing Weights (Maximum Trailer Weight
Ratings)
The following chart provides the maximum trailer
weight ratings towable for your given drivetrain.
STARTING AND OPERATING 239
5

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.
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 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.
Towing Requirements — Trailer Lights & 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 includ ea4and7pin
wiring harness. Use a factory approved trailer harness
and connector.
STARTING AND OPERATING 245
5

If using a manual transmission vehicle for trailer towing,
all starts must be in FIRST gear to avoid excessive clutch
slippage.
Towing Tips — Automatic Transmission
The “D” range can be selected when towing. However, if
frequent shifting occurs while in this range, the “3” range
should be selected.
NOTE: Using the “3” range while operating the vehicle
under heavy operating conditions will improve perfor-
mance and extend transmission life by reducing exces-
sive shifting and heat build up. This action will also
provide better engine braking.
The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. See “Schedule B” in
section 8 of this manual for transmission fluid change
intervals. NOTE:
Check the automatic transmission fluid level
before towing.
Towing Tips — O/D Off (If Equipped)
To reduce potential for automatic transmission overheat-
ing, turn the “O/D OFF” feature ON when driving in
hilly areas or shift the transmission to Drive position 2 on
more severe grades. Refer to “Transmission Shifting” in
this section.
Towing Tips — Electronic Speed Control (If
Equipped)

Don’t use in hilly terrain or with heavy loads.
When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
STARTING AND OPERATING 247
5

4. Operate jack from the front or the rear of the vehicle.
Place the jack under the axle tube, as shown. Do not raise
the vehicle until you are sure the jack is fully engaged.
5. Raise the vehicle by turning the jack screw to the right.
Raise the vehicle only until the tire just clears the surface and enough clearance is obtained to install the spare tire.
Minimum tire lift provides maximum stability.
WARNING!
Raising the vehicle higher than necessary can make
the vehicle less stable and cause an accident. It could
slip off the jack and hurt someone near it. Raise the
vehicle only enough to remove the tire.
6. Remove the lug nuts and wheel.
7. Position spare wheel/tire on vehicle and install lug
nuts with cone-shaped end toward wheel. Lightly tighten
nuts clockwise. To avoid the risk of forcing the vehicle off
the jack, do not tighten the nuts fully until the vehicle has
been lowered.
8. Lower the vehicle by turning the jack screw to the left,
and remove the jack and wheel blocks.
Jacking Locations
WHAT TO DO IN EMERGENCIES 257
6

Set the parking brake, place an automatic transmission in
P (Park) (or N (Neutral) for a manual transmission). Turn
off lights, heater, and other electrical loads. Observe
charge indicator in the battery. If indicator is light or
yellow, replace the battery.
CAUTION!
Use the “Jump Starting” procedure only when the
charge indicator is dark in the center. Do not attempt
jump starting when the battery charge indicator is
bright or yellow. If the charge indicator is dark and
has a green dot in the center, failure to start is not
due to a discharged battery and the cranking system
should be checked.
1. Attach one end of the jumper cable to the positive
terminal of the discharged battery and the other end of
the same cable to the positive terminal of the booster
battery.
WARNING!
Do not permit vehicles to touch each other as this
could establish a ground connection and personal
injury could result.
2. Connect one end of the other jumper cable to the
negative terminal of the booster battery. Connect the
other end of the jumper cable to a good ground on the
vehicle with the discharged battery. Make sure a good
connection is made, free of dirt and grease.
WHAT TO DO IN EMERGENCIES 259
6

▫Air Conditioner Maintenance .............280
▫ Power Steering Fluid Check ..............281
▫ Driveline And Steering Component
Lubrication ..........................282
▫ Body Lubrication .....................282
▫ Windshield Wiper Blades ................282
▫ Windshield Washers ...................283
▫ Exhaust System ......................283
▫ Cooling System .......................284
▫ Hoses And Vacuum/Vapor Harnesses .......289
▫ Brake System ........................290
▫ Automatic Transmission ................292
▫ Hydraulic Clutch Fluid —
Manual Transmission ..................294 ▫
Manual Transmission ..................294
▫ Transfer Case ........................295
▫ Front/Rear Axle Fluid ..................296
▫ Appearance Care And Protection From
Corrosion ...........................297

Fuse Panel ...........................305
▫ Interior Fuses ........................305
▫ Underhood Fuses
(Power Distribution Center) ..............307

Vehicle Storage ........................309

Replacement Bulbs — If Equipped ...........309

Bulb Replacement ......................310
▫ Head Light ..........................310
▫ Front Park/Turn Signal .................311
264 MAINTAINING YOUR VEHICLE

▫Front Side Marker .....................311
▫ Front Fog Light ......................311
▫ Rear Tail, Stop, Turn Signal, And Back-Up
Lights .............................313
▫ Center High Mounted Stop Light (CHMSL) . . . 313

Fluid Capacities ........................314

Fluids, Lubricants And Genuine Parts ........315
▫ Engine .............................315
▫ Chassis ............................316
MAINTAINING YOUR VEHICLE 265
7

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light.” It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible.CAUTION!
•Prolonged driving with the “Malfunction Indica-
tor Light” on could cause further damage to the
emission control system. It could also affect fuel
economy and driveability. The vehicle must be
serviced before any emissions tests can be per-
formed.
•If the “Malfunction Indicator Light” is flashing
while the engine is running, severe catalytic con-
verter damage and power loss will soon occur.
Immediate service is required.
268 MAINTAINING YOUR VEHICLE

WARNING!
Worn brake hoses can burst and cause brake failure.
You could have an accident. If you see any signs of
cracking, scuffing, or worn spots, have the brake
hoses replaced immediately.
Brake Master Cylinder
The fluid level in the master cylinder should be checked
when performing under hood services, or immediately if
the BRAKE warning light shows system failure Be sure to clean the top of the master cylinder area before
removing the cap. If necessary, add fluid to bring the
fluid level up to the requirements described on the brake
fluid reservoir. With disc brakes, fluid level can be
expected to fall as the brake pads wear. Brake fluid level
MAINTAINING YOUR VEHICLE 291
7

3. Always rinse thoroughly with cold water, then wipe
with a soft and slightly moist, clean cloth.
4. When removing frost, snow or ice, never use a scraper
or de-icing chemicals. Use warm water only if you must
clean the window quickly.
5. Debris (sand, mud/dirt, dust, or salt) from off-road
driving will have a major impact on zipper operation.
Even normal on-road driving and vehicle washing will
eventually impact window zipper operation. To maintain
ease of use of the window zippers, each window zipper
should be cleaned and lubricated regularly. Use Mopar 
Soft Top Zipper Cleaner and Lubricant to ease zipper
operation. Before applying, make sure the zipper teeth are clear of sand, mud, and other materials. Clean both
sides of the zipper, not just one side. Rinse both zipper
halves with fresh water and allow to dry. Aggressively
work the Mopar 
Soft Top Zipper Cleaner and Lubricant
into the zipper teeth. If a stuck zipper slide is experi-
enced, work the Mopar Soft Top Zipper Cleaner and
Lubricant into the zipper slide. Several applications may
be required before the zipper comes free.
6. Never paste stickers, gummed labels or any tape to the
windows. Adhesives are hard to remove and may dam-
age the windows.
304 MAINTAINING YOUR VEHICLE