2012 JEEP WRANGLER Electrical

Maintaining Your Air Bag System
WARNING!
•Modifications to any part of the air bag system
could cause it to fail when you need it. You could
be injured if the air bag system is not there to
protect you. Do not modify the components or
wiring, including adding any kind of badges or
stickers to the steering wheel hub trim cover or the
upper right side of the instrument panel. Do not
modify the front bumper or vehicle body structure,
or add aftermarket side steps or running boards.
•You need proper knee impact protection in a
collision. Do not mount or locate any aftermarket
equipment on or behind the knee bolsters.
•It is dangerous to try to repair any part of the air
bag system yourself. Be sure to tell anyone who
works on your vehicle that it has an air bag system.
Air Bag Warning Light
You will want to have the air bags ready to
inflate for your protection in a collision. The
Air Bag Warning Light monitors the internal
circuits and interconnecting wiring associated
with air bag system electrical components. While the air
bag system is designed to be maintenance free, if any of
the following occurs, have an authorized dealer service
the air bag system immediately.
•The Air Bag Warning Light does not come on during
the four to eight seconds when the ignition switch is
first turned to the ON/RUN position.
•The Air Bag Warning Light remains on after the four to
eight-second interval.
•The Air Bag Warning Light comes on intermittently or
remains on while driving.
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THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 69

▫Front Fog Lights ..................... 152
▫ Instrument Panel Dimmer .............. 153
▫ Daytime Running Lights — If Equipped .... 153
▫ Interior Lights ...................... 154
 Windshield Wipers And Washers .......... 155
▫ Windshield Wiper Operation ............ 156
▫ Intermittent Wiper System .............. 156
▫ Windshield Washers .................. 157
▫ Mist Feature ........................ 158
 Tilt Steering Column ................... 158
 Electronic Speed Control — If Equipped ..... 159
▫ To Activate ......................... 160
▫ To Set A Desired Speed ................ 161 ▫
To Deactivate ....................... 161
▫ To Resume Speed .................... 161
▫ To Vary The Speed Setting .............. 161
▫ To Accelerate For Passing .............. 162
 Electrical Power Outlet ................. 162
 Power Inverter — If Equipped ............ 166
 Cupholders .......................... 168
▫ Front Cupholders .................... 168
▫ Rear Cupholders ..................... 168
 Storage ............................. 169
▫ Glovebox Storage .................... 169
▫ Console Storage Compartment ........... 169
▫ Rear Storage Compartment ............. 169
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 93

decrease until the button is released. Release the button
when the desired speed is reached, and the new set speed
will be established.
Pressing the SET (-) button once will result ina1mph
(2 km/h) decrease in set speed. Each subsequent tap of
the button results in a decrease of 1 mph (2 km/h).
To Accelerate For Passing
Press the accelerator as you would normally. When the
pedal is released, the vehicle will return to the set speed.
Using Electronic Speed Control On Hills
The transmission may downshift on hills to maintain the
vehicle set speed.
NOTE:The Electronic Speed Control system maintains
speed up and down hills. A slight speed change on
moderate hills is normal. On steep hills, a greater speed loss or gain may occur so
it may be preferable to drive without Electronic Speed
Control.
WARNING!
Electronic Speed Control can be dangerous where the
system cannot maintain a constant speed. Your ve-
hicle could go too fast for the conditions, and you
could lose control and have an accident. Do not use
Electronic Speed Control in heavy traffic or on roads
that are winding, icy, snow-covered or slippery.
ELECTRICAL POWER OUTLET
There are two 12 Volt (13 Amp) auxiliary power outlets
that can provide power for accessories designed for use
with the standard power outlet adapters.
162 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

CAUTION! (Continued)
•Power outlets are designed for accessory plugs
only. Do not hang any type of accessory or acces-
sory bracket from the plug.
POWER INVERTER — IF EQUIPPED
There is a 115 Volt, 150 Watt inverter outlet located on the
front of the center console to convert DC current to AC
current. This outlet can power cellular phones, electron-
ics and other low power devices requiring power up to
150 Watts. Certain high-end video games, such as Play-
station3 and XBox360 will exceed this power limit, as will
most power tools.The power inverter is designed with built-in overload
protection. If the power rating of 150 Watts is exceeded,
the power inverter will automatically shut down. Once
the electrical device has been removed from the outlet the
inverter should automatically reset. If the power rating
exceeds approximately 170 Watts, the power inverter
Power Inverter
166 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

may have to be reset manually. To reset the inverter
manually press the power inverter button OFF and ON.
To avoid overloading the circuit, check the power ratings
on electrical devices prior to using the inverter.The power inverter switch is located
on the instrument panel below the
climate controls. To turn on the power
outlet, press the switch once. The in-
dicator light will illuminate. Press the
switch a second time to turn the power
inverter outlet off.
NOTE: When the power inverter switch is pressed,
there will be a delay of approximately one second before
the inverter indicator light turns ON.WARNING!
To avoid serious injury or death:
•Do not use a three-prong adaptor.
•Do not insert any objects into the receptacles.
•Do not touch with wet hands.
•Close the lid when not in use.
•If this outlet is mishandled it may cause an electric
shock and failure.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 167

INSTRUMENT CLUSTER DESCRIPTIONS
1. Fuel Gauge
The pointer shows the level of fuel in the fuel tank when
the ignition switch is in the ON/RUN position.
2. Charging System LightThis light shows the status of the electrical charg-
ing system. The light should come on when the
ignition switch is first turned to ON/RUN, and remain
on briefly as a bulb check. If the light stays on or comes
on while driving, turn off some of the vehicle’s non-
essential electrical devices or increase engine speed (if at
idle). If the charging system light remains on, it means
that the vehicle is experiencing a problem with the
charging system. Obtain SERVICE IMMEDIATELY. See
an authorized dealer.
If jump starting is required, refer to “Jump Starting
Procedures” in “What To Do In Emergencies”. 3. Front Fog Light Indicator — If Equipped
This indicator will illuminate when the front fog
lights are on.
4. Low Fuel Warning Light When the fuel level reaches approximately 2.8 gal
(10.6L) this light will turn on and a single chime
will sound.
5. Speedometer
Indicates vehicle speed.
6. Front Axle Lock Indicator — If Equipped Indicates when the front axle lock has been
activated.
7. Seat Belt Reminder Light When the ignition switch is first turned to ON/
RUN, this light will turn on for four to eight
seconds as a bulb check. During the bulb check, if
4
UNDERSTANDING YOUR INSTRUMENT PANEL 269

If the engine shows no sign of starting after two 15–
second periods of cranking with the accelerator pedal
held to the floor, repeat the “Normal Starting” or “Ex-
treme Cold Weather” procedures.
With Tip Start – Automatic Transmission Only
If the engine fails to start after you have followed the
“Normal Starting” or “Extreme Cold Weather” proce-
dures, it may be flooded. To clear any excess fuel, push
the accelerator pedal all the way to the floor and hold it.
Then, turn the ignition switch to the START position and
release it as soon as the starter engages. The starter motor
will disengage automatically in 10 seconds. Once this
occurs, release the accelerator pedal, turn the ignition
switch to the LOCK position, wait 10 to 15 seconds, then
repeat the “Normal Starting” procedure.CAUTION!
To prevent damage to the starter, wait 10 to 15 sec-
onds before trying again.
After Starting
The idle speed will automatically decrease as the engine
warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the cord to a
standard 110-115 Volt AC electrical outlet with a
grounded, three-wire extension cord.
The engine block heater cord is found under the hood
bundled in front of the battery tray.
The engine block heater must be plugged in at least one
hour to have an adequate warming effect on the engine.5
STARTING AND OPERATING 375

WARNING!
Remember to disconnect the engine block heater
cord before driving. Damage to the 110-115 Volt AC
electrical cord could cause electrocution.
MANUAL TRANSMISSION — IF EQUIPPED
WARNING!
You or others could be injured if you leave the
vehicle unattended without having the parking
brake fully applied. The parking brake should al-
ways be applied when the driver is not in the vehicle,
especially on an incline.
CAUTION!
Never drive with your foot resting on the clutch
pedal, or attempt to hold the vehicle on a hill with the
clutch pedal partially engaged, as this will cause
abnormal wear on the clutch.
NOTE: During cold weather, you may experience in-
creased effort in shifting until the transmission fluid
warms up. This is normal.
376 STARTING AND OPERATING