2007 JEEP WRANGLER clutch

To Set At A Desired Speed
When the vehicle has reached the desired speed, press
down on the lever and release. Release the accelerator
and the vehicle will operate at the selected speed.
NOTE:The vehicle should be traveling at a steady
speed and on level ground before pressing the SET lever.
To Deactivate
A soft tap on the brake pedal, pulling the speed control
lever towards you “CANCEL”, or normal brake or clutch
pressure while slowing the vehicle will deactivate speed
control without erasing the set speed memory. Pressing
the ON/OFF button or turning off the ignition switch
erases the set speed memory.
To Resume Speed
To resume a previously set speed, push the “RESUME
ACCEL” lever up and release. Resume can be used at any
speed above 20 mph (32 km/h).
To Vary The Speed Setting
When the speed control is ON, speed can be increased by
pushing up and holding “RESUME ACCEL”. Release the
lever when the desired speed is reached, and the new
speed will be set.
Tapping “RESUME ACCEL” once will result ina2mph
(3 km/h) speed increase. Each time the lever is tapped,
speed increases so that tapping the lever three times will
increase speed by 6 mph (10 km/h), etc.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 105
3

To decrease speed while speed control is ON, push down
and hold “SET DECEL”. Release the lever when the
desired speed is reached, and the new speed will be set.
Tapping the “SET DECEL” button once will result in a 1
mph (2 km/h) speed decrease. Each time the button is
tapped, speed decreases.
Manual Transmission
Depressing the clutch pedal will disengage the speed
control. A slight increase in engine RPM before the speed
control disengages is normal.
Vehicles equipped with manual transmissions may need
to be shifted into a lower gear to climb hills without
speed loss.
WARNING!
Speed Control can be dangerous where the system
can’t maintain a constant speed. Your vehicle could
go too fast for the conditions, and you could lose
control. An accident could be the result. Don’t use
Speed Control in heavy traffic or on roads that are
winding, icy, snow-covered, or slippery.
To Accelerate For Passing
Depress the accelerator as you would normally. When the
pedal is released, the vehicle will return to the set speed.
Using Speed Control On Hills
NOTE:The speed control system maintains speed up
and down hills. A slight speed change on moderate hills
is normal.
106 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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

•Do not operate at sustained high engine or road
speeds in lower gears. Engine damage may result.
•Do not downshift into a low gear while traveling at too
high a speed for that gear. Engine, clutch, or transmis-
sion damage may result.
•Do not rest your foot on the clutch pedal. This causes
heat buildup and damages the clutch.
•When you slow down or go up a grade, downshift as
speed requires or the engine may overheat.
•Never hold the vehicle stopped on a hill by using the
clutch pedal. The clutch may be damaged.
•During cold weather, you may experience increased
effort in shifting until the transmission fluid warms
up. This is normal.
•Push in the clutch pedal completely when shifting.
Otherwise, transmission or clutch damage may result.
•When “rocking” a stuck vehicle by shifting between a
forward gear and reverse, do not spin wheels faster
than 15 mph (24 km/h), or drivetrain damage may
result.
Recommended Manual Transmission Shifting
Speeds
The manufacturer recommends that you use the shift
speeds listed in the chart below.
Manual Transmission Shift Speeds in MPH (KM/H)
En-
gineSpeeds 1 to 2 2 to 3 3 to 4 4 to 5 5 to 6
3.8L Accel. 15 (24) 24
(39)34
(55)47
(76)56
(90)
Cruise 10 (16) 19
(31)27
(43)37
(60)41
(66)
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5

Recommended Manual Transmission Downshifting
Speeds
To prevent clutch and transmission damage, your vehicle
should be downshifted at speeds no greater than those
listed in the chart below:
Manual Transmission Downshift Speeds in MPH
(KM/H)
Gear
Selec-
tion6th to
5th5th to
4th4th to
3rd3rd to
2nd2nd to
1st
Maxi-
mum
Speed88 (142) 71 (114) 51 (82) 33 (53) 20 (32)
CAUTION!
Failure to follow the recommended downshifting
speeds may cause the engine to over speed and/or
damage the clutch disc even if the clutch pedal is
depressed.
272 STARTING AND OPERATING

Torque Converter Clutch
A feature designed to improve fuel economy has been
added to the automatic transmission of this vehicle. A
clutch within the torque converter engages automatically
at calibrated speeds. This may result in a slightly differ-
ent feeling or response during normal operation in high
gear. When the vehicle speed drops or during accelera-
tion, the clutch automatically and smoothly disengages.
FOUR–WHEEL DRIVE OPERATION
(COMMAND-TRAC™ OR ROCK-TRAC™) — IF
EQUIPPED
Operating Instructions/Precautions
The transfer case provides four mode positions — two
(rear) wheel drive high range, four wheel drive high
range, neutral, and four wheel drive low range.
4WD Shift Controls
280 STARTING AND OPERATING

The “4WD Indicator Light” (located in the instrument
cluster) will illuminate when the transfer case is shifted
into the 4H position.
N (Neutral) Position
Neutral — Disengages both the front and rear driveshafts
from the powertrain. To be used for flat towing behind
another vehicle. Refer to “Recreational Towing” in Sec-
tion 5 of this manual.
4L Position
Four Wheel Drive Low Range — Locks the front and rear
driveshafts together. Forces the front and rear wheels to
rotate at the same speed. Additional traction and maxi-
mum pulling power for loose, slippery road surfaces
only. Do not exceed 25 mph (40 km/h).
The “4WD Indicator Light” (located in the instrument
cluster) will illuminate when the transfer case is shifted
into the 4L position.
Shifting Procedure
2H to 4H or 4H to 2H
Shifting between 2H and 4H can be made with the
vehicle stopped or in motion. If the vehicle is in motion,
shifts can be made up to 50 mph (80 km/h). With the
vehicle in motion, the transfer case will engage/
disengage faster if you momentarily release the accelera-
tor pedal after completing the shift. Apply a constant
force when shifting the transfer case lever.
4H to 4L or 4L to 4H
With the vehicle rolling at 2 to 3 mph (3 to 5 km/h), shift
an automatic transmission to N (Neutral) or depress the
clutch pedal on a manual transmission. While the vehicle
is coasting at 2 to 3 mph (3 to 5 km/h), shift the transfer
case lever firmly to the desired position. Do not pause in
transfer case N (Neutral).
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5

NOTE:Pausing in transfer case N (Neutral) in vehicles
equipped with an automatic transmission may require
shutting the engine OFF to avoid gear clash while
completing the shift. If difficulty occurs, shift the auto-
matic transmission to N (Neutral), hold foot on brake,
and turn the engine OFF. Make shift to desired mode.
NOTE:Shifting into or out of 4L is possible with the
vehicle completely stopped, however, difficulty may oc-
cur due to the mating teeth not being properly aligned.
Several attempts may be required for clutch teeth align-
ment and shift completion to occur. The preferred
method is with the vehicle rolling at 2 to 3 mph (3 to 5
km/h). Avoid attempting to engage or disengage 4L with
the vehicle moving faster than 2 to 3 mph (3 to 5 km/h).WARNING!
Failure to engage a position completely can cause
transfer case damage or loss of power and vehicle
control. You could have an injury accident. Do not
drive the vehicle unless the transfer case is fully
engaged.
TRAC-LOK™ REAR AXLE — IF EQUIPPED
The Trac-Lok™ rear axle provides a constant driving
force to both rear wheels and reduces wheel spin caused
by the loss of traction at one driving wheel. If traction
differs between the two rear wheels, the differential
automatically proportions the usable torque by providing
more torque to the wheel that has traction.
284 STARTING AND OPERATING