battery JEEP WRANGLER 2006 TJ / 2.G Owners Manual

NOTE:When driving uphill, at elevations above 2,000
ft. (610 meters), or when the vehicle is heavily loaded
(especially when towing) the vehicle may slow below the
SET speed. (If the vehicle speed drops below 35 mph (56
km/h), the Speed Control will automatically disengage).
If this happens, you can push down on the accelerator
pedal to maintain the desired speed.
WARNING!
Leaving the Speed Control on when not in use is
dangerous. You could accidentally set the system or
cause it to go faster than you want. You could lose
control and have an accident. Always turn the system
off when you are not using it.
ELECTRICAL POWER OUTLET
To the right of the cigar lighter (if equipped) is the 12 volt
power outlet. The outlet is connected directly to the
battery, items plugged into this outlet may discharge the
battery and/or prevent engine starting. The outlet in-
cludes a tethered cap labeled with a battery symbol
indicating the power source.
Power Outlet
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 71
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Electrical Outlet Use With Engine Off
WARNING!
•Many accessories that can be plugged in draw power
from the vehicle’s battery, even when not in use (i.e.
cellular phones, etc.). Eventually, if plugged in long
enough, the vehicle’s battery will discharge sufficiently
to degrade battery life and/or prevent engine starting.
•Accessories that draw higher power (i.e. coolers,
vacuum cleaners, lights, etc.), will degrade the battery
even more quickly. Only use these intermittently and
with greater caution.
•After the use of high power draw accessories, or long
periods of the vehicle not being started (with accesso-
ries still plugged in), the vehicle must be driven a
sufficient length of time to allow the alternator to
recharge the vehicle’s battery.
•Power outlets are designed for accessory plugs only.
Do not hang any type of accessory or accessory bracket
from the plug.
CUP HOLDERS
In the center console there are two cup holders for the
front seat passengers.
NOTE: The cup holder insert is removable from the
console, for cleaning.
Front Cup Holders
72 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

REAR WINDOW FEATURES — HARD TOP ONLY
Rear Window Defogger
To turn the rear window defogger on, press the
rocker switch. If you press the switch a second
time, you will turn the defogger off. A light on the rocker
switch will indicate the defogger is on. The defogger will automatically turn off after about ten
minutes. For five more minutes of operation, depress the
top of the switch to turn the defogger on again. To
prevent excessive battery drain use the defogger only
when the engine is operating.
CAUTION!
Use care when washing the inside of the rear win-
dow to prevent damage to heating elements. Use a
soft cloth and a mild washing solution, wiping
parallel to the heating elements. Also, keep all
objects a safe distance from the window to prevent
damaging the heating elements.
Rear Defroster Switch
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 139
3

INSTRUMENT CLUSTER DESCRIPTION
Your vehicle is equipped with the instrument cluster
described on the following pages.
1. Voltmeter Indicates available battery voltage and charging
system operation. The lower red zone indicates
that battery charge may be too low to start the engine.
With the engine running, the normal operating range is
between 11 and 15 volts. Prolonged gauge readings
between 8-11 (undercharge) or above 15 (overcharge)
indicate possible malfunction of generator, voltage regu-
lator or battery. See your dealer if such indications occur.
2. Front Fog Light Indicator Light — If Equipped This light shows when the front fog lights are on.
3. Cruise Indicator Light This light shows when the electronic speed
control system is turned on. 4. Sentry Key Indicator Light — If Equipped
Refer to “Sentry Key Immobilizer System” in
Section 2 of this manual. (See page 14 for more
information.)
5. Tachometer
Indicates the engine speed in revolutions per minute
(RPM).
CAUTION!
Do not operate the engine with the tachometer
pointer in the red area. Engine damage will occur.
6. Turn Signal Indicator Lights The arrows will flash with the exterior turn signals
when the turn signal lever is operated. A tone will
chime if the turn signals are left on for more than 1 mile
(2 km).
UNDERSTANDING YOUR INSTRUMENT PANEL 147
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Do not use this emergency warning system when the
vehicle is in motion. Use it when your vehicle is disabled
and is creating a safety hazard for other motorists.
If it is necessary to leave the vehicle to go for service, the
flasher system will continue to operate with the ignition
key removed and the vehicle locked.
NOTE: With extended use, the flasher may wear down
your battery.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate ac-
tion.
•On the highways — Slow down.
•In city traffic — While stopped, put transmission in N
(Neutral), but do not increase engine idle speed.
NOTE: There are steps that you can take to slow down
an impending overheat condition. If your air conditioner
is on, turn it off. The air conditioning system adds heat to
the engine cooling system and turning off the A/C
removes this heat. You can also turn the Temperature
Control to maximum heat, the Mode Control to floor, and
the Fan Control to High. This allows the heater core to act
as a supplement to the radiator and aids in removing heat
from the engine cooling system.
WHAT TO DO IN EMERGENCIES 253
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9. Finish tightening the lug nuts. Push down on the
wrench while tightening for increased leverage. Alternate
nuts until each nut has been tightened twice. Correct
wheel nut tightness is 130 N·m (95 ft. lbs). If in doubt
about the correct tightness, have them checked with a
torque wrench by your authorized dealer or at a service
station.
10. Remove jack assembly and wheel blocks.
WARNING!
A loose tire or jack, thrown forward in a collision or
hard stop could endanger the occupants of the ve-
hicle. Always stow the jack parts and the spare tire in
the places provided.
11. Secure the tire, jack, and tools in their proper loca-
tions.
JUMP STARTING
WARNING!
To prevent personal injury or damage to clothing, do
not allow battery fluid to contact eyes, skin, or
fabrics. Do not lean over a battery when connecting
jumper cables or allow cable clamps to touch each
other. Keep open flames or sparks away from battery
vent holes. Always wear eye protection when work-
ing with batteries. Do not use a booster battery or
any other booster source that has a greater than
12–volt system, i.e. do not use a 24–volt power
source.
Your vehicle is equipped with a 12–volt battery. If it
becomes necessary to use a booster battery, with jumper
cables, to start the vehicle’s engine because it’s battery is
discharged, the following procedure should be followed:
258 WHAT TO DO IN EMERGENCIES

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
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WARNING!
•Do not connect the cable to the negative terminal
of the discharged battery. The resulting electrical
spark could cause the battery to explode.
•During cold weather when temperatures are be-
low freezing point, electrolyte in a discharged
battery may freeze. Do not attempt jump starting
because the battery could rupture or explode. The
battery temperature must be brought up above
freezing point before attempting to jump start.
3. Take care that the clamps from one cable do not touch
clamps from the other cable. Do not lean over the battery
when making the connection. The negative connection
must provide good electrical conductivity and current
carrying capacity.
4. After the engine is started or if the engine fails to start,
the cables must be disconnected in the following order: a. Disconnect the negative cable at the engine ground.
b. Disconnect the negative cable at the negative termi-
nal on the booster battery.
c. Disconnect the cable from the positive terminals of
both batteries.
260 WHAT TO DO IN EMERGENCIES

WARNING!
Any procedure other than above could result in:
•Personal injury caused by electrolyte squirting
out the battery vent.
•Personal injury or property damage due to battery
explosion.
•Damage to charging system of booster vehicle or
of immobilized vehicle.
TOWING A DISABLED VEHICLE
The manufacturer recommends towing with all four
wheels off the ground. Acceptable methods are to tow the
vehicle on a flatbed or with one end of the vehicle raised
and the other end on a towing dolly.
WHAT TO DO IN EMERGENCIES 261
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MAINTAINING YOUR VEHICLE
CONTENTS

2.4L Engine ...........................266

4.0L Engine ...........................267

Onboard Diagnostic System — OBD II ........268

Emissions Inspection And Maintenance
Programs ............................269

Replacement Parts ......................270

Dealer Service .........................270

Maintenance Procedures ..................271
▫ Engine Oil ..........................271 ▫
Drive Belts — Check Condition And Tension . . 275
▫ Spark Plugs .........................275
▫ Catalytic Converter ....................275
▫ Engine Timing Belt — 2.4L Engine .........277
▫ Ignition Wiring System — 2.4L Engine ......277
▫ Crankcase Emission Control System ........277
▫ Fuel Filter ..........................278
▫ Engine Air Cleaner Filter ................278
▫ Maintenance-Free Battery ................278
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