lock JEEP WRANGLER 2007 JK / 3.G Repair Manual

you select. The fan speed increases as you move the
control to the right from the OFF position.
Temperature Control
Use this control (right rotary knob) to regulate the
temperature of the air inside the passenger compartment.
The blue area of the scale indicates cooler temperatures
while the red area indicates warmer temperatures.
Manual Air Conditioning and Heating System — If
Equipped
The controls for the heating/air conditioning and venti-
lation system in this vehicle consist of a series of rotary
knobs. These comfort controls can be set to obtain desired
interior conditions.The instrument panel features four airflow registers. Two
registers are located on the outer ends of the instrument
panel and two are located in the center of the instrument
panel. These registers can be closed to partially block
airflow, and they can be adjusted to direct airflow where
the occupant desires.
254 UNDERSTANDING YOUR INSTRUMENT PANEL

Temperature Control
Use this control to regulate
the temperature of the air in-
side the passenger compart-
ment. The blue area of the
scale indicates cooler tem-
peratures while the red area
indicates warmer tempera-
tures.
NOTE:If your air conditioning performance seems
lower than expected, check the front of the A/C con-
denser: located in front of the radiator, for an accumula-
tion of dirt or insects. Clean with a gentle water spray
from behind the radiator and through the condenser.
Fabric front fascia protectors may reduce air flow to the
condenser, reducing air conditioning performance.
Circulation Control
Press this button to choose
between outside air intake or
recirculation of the air inside
the vehicle. A lamp will illu-
minate when you are in “Re-
circulate” mode. Only use the
“Recirculate” mode to tempo-
rarily block out any outside
odors, smoke, or dust and to
cool the interior rapidly upon
initial start up in very hot or humid weather.
NOTE:Continuous use of the “Recirculate” mode may
make the inside air stuffy and window fogging may
occur. Extended use of this mode is not recommended.
In cold or damp weather, the use of the “Recirculate”
mode will cause windows to fog on the inside because of
UNDERSTANDING YOUR INSTRUMENT PANEL 257
4

STARTING AND OPERATING
CONTENTS
Starting Procedures.....................265
▫Manual Transmission..................265
▫Automatic Transmission................265
▫Normal Starting......................265
▫Extreme Cold Weather
(Below –20°F Or –29°C).................266
▫If Engine Fails To Start.................266
▫After Starting........................268
Engine Block Heater — If Equipped.........269Manual Transmission....................269
▫6-Speed Manual Transmission............269
Automatic Transmission..................273
▫Shift Lock Manual Override..............274
▫Brake/Transmission Interlock System.......275
▫Automatic Transmission With Overdrive.....275
Four–Wheel Drive Operation (Command-Trac™
Or Rock-Trac™) — If Equipped.............280
▫Operating Instructions/Precautions.........280
5

▫Shift Positions........................282
▫Shifting Procedure....................283
Trac-Lok™ Rear Axle — If Equipped.........284
Axle Lock (Tru–Lok™) — Rubicon Models.....285
Rear Axle Lock — 4WD Non-Rubicon Models
(If Equipped)..........................286
Electronic Sway Bar Disconnect — If Equipped . . 287
On-Road Driving Tips...................289
Off-Road Driving Tips...................290
▫When To Use 4L (Low) Range............290
▫Driving Through Water.................291
▫Driving In Snow, Mud And Sand..........292
▫Hill Climbing........................292▫Traction Downhill.....................293
▫After Driving Off-Road.................294
Parking Brake.........................295
Anti-Lock Brake System..................296
Power Steering........................298
Tire Safety Information...................300
▫Tire Markings........................300
▫Tire Identification Number (TIN)..........303
▫Tire Loading And Tire Pressure...........304
Tires — General Information...............308
▫Tire Pressure.........................308
▫Tire Inflation Pressures.................309
▫Tire Pressures For High Speed Operation....311
262 STARTING AND OPERATING

STARTING PROCEDURES
Before starting your vehicle, adjust your seat, adjust both
inside and outside mirrors, and fasten your seat belts.
WARNING!
Never leave children alone in a vehicle. Leaving
children in a vehicle unattended is dangerous for a
number of reasons. A child or others could be seri-
ously or fatally injured. Do not leave the keys in the
ignition. A child could operate power windows,
other controls, or move the vehicle.
Manual Transmission
Apply the parking brake, place the gearshift control lever
in N (Neutral) and depress the clutch pedal before
starting vehicle. This vehicle is equipped with a clutch
interlocking ignition system. It will not start unless the
clutch pedal is pressed to the floor.4WD Models Only
In 4L mode, this vehicle will start regardless of whether
or not the clutch pedal is pressed to the floor. This feature
enhances off-road performance by allowing the vehicle to
start when in 4L without having to depress the clutch
pedal. The “4WD Indicator Light” will illuminate when
the transfer case has been shifted into this mode.
Automatic Transmission
Start the engine with the selector lever in the N (Neutral)
or P (Park) position. Apply the brake before shifting to
any driving range.
Normal Starting
Normal starting of either a cold or a warm engine is
obtained without pumping or depressing the accelerator
pedal. Turn the key to the START position and release
when the engine starts. If the engine fails to start within
10 seconds, turn the key to the OFF position, wait 5
seconds, then repeat the normal starting procedure.
STARTING AND OPERATING 265
5

Tip Start Feature — Automatic Transmission Only
Do notpress the accelerator. Turn the ignition key briefly
to START position, and release it. The starter motor will
continue to run, but will automatically disengage itself
when the engine is running.
Extreme Cold Weather (below –20°F or –29°C)
To insure reliable starting at these temperatures, use of an
externally powered electric engine block heater (available
from your dealer) is recommended.
If Engine Fails to Start
If the engine fails to start after you have followed the
“Normal Starting” or “Extreme Cold Weather” proce-
dures, it may be flooded. Push the accelerator pedal all
the way to the floor and hold it there while cranking the
engine. This should clear any excess fuel in case the
engine is flooded.
Ignition Key Positions
266 STARTING AND OPERATING

ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms engine coolant 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.
WARNING!
Remember to disconnect the cord before driving.
Damage to the 110-115 volt AC electrical cord could
cause electrocution.
Use the heater when temperatures below 0°F (-18°C) are
expected to last for several days.
MANUAL TRANSMISSION
6-Speed Manual Transmission
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.
STARTING AND OPERATING 269
5

Shift Lock Manual Override
Your vehicle may be equipped with a shift lock manual
override. The manual override may be used in the event
that the shift lever should fail to move from Park with the
key in the ON position and the brake pedal depressed. To
operate the shift lock manual override, perform the
following steps:
1. Firmly set the parking brake.
2. Using a flat blade screwdriver, carefully remove the
shift lock manual override cover which is located on the
PRNDL bezel, in front of the P (Park) graphic.
3. Depress and maintain firm pressure on the service
brake pedal.
4. Using the screwdriver, reach into the manual override
opening. Press and hold the shift lock lever down.5. Depress the shifter release button and shift into N
(Neutral).
6. The vehicle may then be started in N (Neutral).
Have your vehicle inspected by your local authorized
dealer, if the shift lock manual override has been used.
274 STARTING AND OPERATING

Brake/Transmission Interlock System
This system prevents you from moving the gear shift out
of P (Park) and into any gear unless the brake pedal is
pressed. This system is active only while the ignition
switch is in the ON position. Always depress thebrake
pedal first,before moving the gear selector out of P
(Park).
Automatic Transmission with Overdrive
Shifting from D (Drive) to P (Park) or R (Reverse) (or
from P or R to D) should be done only after the
accelerator pedal is released and the vehicle is stopped.
Be sure to keep your foot on the brake when moving the
shift lever between these gears.
Automatic Shift Controls
STARTING AND OPERATING 275
5

Gear Ranges
DO NOT race the engine when shifting from P (Park) or
N (Neutral) position into another gear range.
P (Park)
This gear position supplements the parking brake by
locking the transmission. The engine can be started in
this range. Never use P (Park) while the vehicle is in
motion. Apply the parking brake when leaving the
vehicle in this range. Always apply parking brake first,
then place the selector in P (Park) position.
WARNING!
Never use P (Park) position as a substitute for the
parking brake. Always apply parking brake fully
when parked to guard against vehicle movement and
possible injury or damage.
WARNING!
It is dangerous to shift the selector lever out of P
(Park) or N (Neutral) if the engine speed is higher
than idle speed. If your foot is not firmly on the
brake pedal, the vehicle could accelerate quickly
forward or in reverse. You could lose control of the
vehicle and hit someone or something. Only shift
into gear when the engine is idling normally and
when your right foot is firmly on the brake pedal.
276 STARTING AND OPERATING