AC System JEEP LIBERTY 2007 KJ / 1.G Repair Manual

•Performance is maximized under:
•low-to-medium blower setting,
•low-to-medium vehicle speed,
•low road noise,
•smooth road surface,
•fully closed windows,
•dry weather condition.
•Even though the system is designed for users speaking
in North American English, French, and Spanish ac-
cents, the system may not always work for some.
•When navigating through an automated system, such
as voice mail, or when sending a page at the end of
speaking the digit string, make sure to saysend.
•Storing names in phonebook when vehicle is not in
motion is recommended.
•It is not recommended to store similar sounding
names in the UConnect™ phonebook.
•UConnect™ phonebook nametag recognition rate is
optimized for the voice of the person who stored the
name in the phonebook.
•You can sayO(letterO) for0(zero).800must be
spokeneight-zero-zero.
•Even though international dialing for most number
combinations is supported, some shortcut dialing
number combinations may not be supported.
Far End Audio Performance
•
Audio quality is maximized under:
•low-to-medium blower setting,
•low-to-medium vehicle speed,
•low road noise,
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•smooth road surface,
•fully closed windows, and
•dry weather condition.
•Operation from driver seat.
•Performance, such as audio clarity, echo, and loudness
to a large degree rely on the phone and network, and
not the UConnect™ system.
•Echo at far end can sometime be reduced by lowering
the in-vehicle audio volume.
Bluetooth Communication Link
Occasionally, Cellular phones have been found to lose
connection to the UConnect™ system. When this hap-
pens, the connection can generally be re-established by
switching the phone off/on. Your cell phone is recom-
mended to remain in Bluetoothonmode.
Power-Up
After switching the ignition key from OFF to either ON
or ACC position, or after a reset, you must wait at least
five (5) seconds prior to using the system.
104 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Intermittent Wiper System
The intermittent feature of this system was designed for
use when weather conditions make a single wiping cycle,
with a variable pause between cycles, desirable. For
maximum delay between cycles, rotate the control knob
into the upper end of the delay range.
The delay interval decreases as you rotate the knob until
it enters the LOW continual speed position. The delay
can be regulated from a maximum of about 15 seconds
between cycles, to a cycle every 2 seconds. The delay
intervals will double in duration when the vehicle speed
is 10 mph (16 km) or less.WARNING!
Sudden loss of visibility through the windshield
could lead to an accident. You might not see other
vehicles or other obstacles. To avoid sudden icing of
the windshield during freezing weather, warm the
windshield with defroster before and during wind-
shield washer use.
Windshield Washers
To use the washer, pull the lever toward you and hold
while spray is desired. If the lever is pulled while in the
delay range, the wiper will operate for two wipe cycles
after the lever is released, and then resume the intermit-
tent interval previously selected.
If the lever is pulled while in the OFF position, the wipers
will operate for several wipe cycles, then turn off.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 121
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WARNING!
Tilting the steering column while the vehicle is
moving is dangerous. Without a stable steering col-
umn, you could lose control of the vehicle and have
an accident. Adjust the column only while the ve-
hicle is stopped. Be sure it is locked before driving.
ELECTRONIC SPEED CONTROL
When engaged, this device takes over accelerator opera-
tions beginning at speeds of approximately 30 mph (48
km/h). The controls are mounted on the steering wheel
and consist of ON·OFF, SET, RES·ACCEL, CANCEL, and
DECEL controls.
To Activate
Press and release the ON·OFF button to turn the system
on. To turn the system off, press the ON·OFF button
again. The system should be turned off when not in use.
The CRUISE indicator light in the instrument cluster
illuminates when the system is on.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 123
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To Accelerate for Passing
Depress the accelerator as you would normally. When the
pedal is released, the vehicle will return to the set speed.
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.
A full throttle (high RPM) acceleration, while the system
is engaged, will cause the system to disengage.
Vehicles may exhibit several 4-3 downshifts under the
above conditions. To reduce the frequency of the down-
shifts and to improve vehicle performance, it is advisable
to lock out overdrive. Press the O/D OFF button on the
right side of the shift lever.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.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system that includes ABS (Anti-Lock Brake
System), TCS (Traction Control System), BAS (Brake
Assist System), ERM (Electronic Roll Mitigation) and ESP
(Electronic Stability Program). All five systems work
together to enhance vehicle stability and control in vari-
ous driving conditions are commonly referred to as ESP.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 125
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ABS (Anti-Lock Brake System)
This system aids the driver in maintaining vehicle control
under adverse braking conditions. The system controls
hydraulic brake pressure to prevent wheel lock-up and
help avoid skidding on slippery surfaces during braking.
Refer to “Anti-Lock Brake System” in Section 5 of this
manual for more information about ABS.
WARNING!
ABS (Anti-Lock Brake System) cannot prevent the
natural laws of physics from acting on the vehicle,
nor can it increase the traction afforded by prevail-
ing road conditions. ABS cannot prevent accidents,
including those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. Only a safe, attentive, and skillful driver
can prevent accidents. The capabilities of an ABS-
equipped vehicle must never be exploited in a reck-
less or dangerous manner which could jeopardize
the user’s safety or the safety of others.
126 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

TCS (Traction Control System)
This system monitors the amount of wheel spin of each of
the driven wheels. If wheel spin is detected, brake
pressure is applied to the slipping wheel(s) and engine
power is reduced to provide enhanced acceleration and
stability. A feature of the TCS system functions similar to
a limited slip differential and controls the wheel spin
across a driven axle. If one wheel on a driven axle is
spinning faster than the other, the system will apply the
brake of the spinning wheel. This will allow more engine
torque to be applied to the wheel that is not spinning.
This feature remains active even if TCS and ESP are in the
“Partial Off” mode. Refer to “ESP (Electronic Stability
Program)” in this section.
BAS (Brake Assist System)
The BAS is designed to optimize the vehicle’s braking
capability during emergency braking maneuvers. The
system detects an emergency braking situation by sens-
ing the rate and amount of brake application and then
applies optimum pressure to the brakes. This can help
reduce braking distances. The BAS complements the
anti-lock brake system (ABS). Applying the brakes very
quickly results in the best BAS assistance. To receive the
benefit of the system, you must apply continuous brak-
ing pressure during the stopping sequence. Do not
reduce brake pedal pressure unless braking is no longer
desired. Once the brake pedal is released, the BAS is
deactivated.
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WARNING!
BAS (Brake Assist System) cannot prevent the natu-
ral laws of physics from acting on the vehicle, nor
can it increase the traction afforded by prevailing
road conditions. BAS cannot prevent accidents, in-
cluding those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. Only a safe, attentive, and skillful driver
can prevent accidents. The capabilities of a BAS-
equipped vehicle must never be exploited in a reck-
less or dangerous manner which could jeopardize
the user’s safety or the safety of others.
ERM (Electronic Roll Mitigation)
This system anticipates the potential for wheel lift by
monitoring the driver ’s steering wheel input and the
speed of the vehicle. When ERM determines that the rate
of change of the steering wheel angle and vehicles speed
are sufficient to potentially cause wheel lift, it applies the
appropriate brake and may reduce engine power to
lessen the chance that wheel lift will occur. ERM will only
intervene during very severe or evasive driving maneu-
vers. ERM can only reduce the chance of wheel lift
occurring during severe or evasive driving maneuvers. It
can not prevent wheel lift due to other factors such as
road conditions, leaving the roadway or striking objects
or other vehicles.
128 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING!
Many factors, such as vehicle loading, road condi-
tions and driving conditions, influence the chance
that wheel lift or rollover may occur. ERM can not
prevent all wheel lift or rollovers, especially those
that involve leaving the roadway or striking objects
or other vehicles. Only a safe, attentive, and skillful
driver can prevent accidents. The capabilities of an
ERM-equipped vehicle must never be exploited in a
reckless or dangerous manner which could jeopar-
dize the user’s safety or the safety of others.
ESP (Electronic Stability Program)
This system enhances directional control and stability of
the vehicle under various driving conditions. ESP cor-
rects for over/under steering of the vehicle by applyingthe brake of the appropriate wheel to assist in counter-
acting the over/under steer condition. Engine power
may also be reduced to help the vehicle maintain the
desired path.
ESP uses sensors in the vehicle to determine the vehicle
path intended by the driver and compares it to the actual
path of the vehicle. When the actual path does not match
the intended path, ESP applies the brake of the appropri-
ate wheel to assist in counteracting the oversteer or
understeer condition.
•Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
•Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.
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ESP/TCS Indicator Light
TheESP/TCS Indicator Lightlocated in the
instrument cluster, starts to flash as soon as the
tires lose traction and the ESP system becomes
active. TheESP/TCS Indicator Lightalso
flashes when TCS is active. If theESP/TCS Indicator
Lightbegins to flash during acceleration, ease up on the
accelerator and apply as little throttle as possible. Be sure
to adapt your speed and driving to the prevailing road
conditions.WARNING!
ESP (Electronic Stability Program) cannot prevent
the natural laws of physics from acting on the
vehicle, nor can it increase the traction afforded by
prevailing road conditions. ESP cannot prevent acci-
dents, including those resulting from excessive
speed in turns, driving on very slippery surfaces, or
hydroplaning. Only a safe, attentive, and skillful
driver can prevent accidents. The capabilities of an
ESP-equipped vehicle must never be exploited in a
reckless or dangerous manner which could jeopar-
dize the user’s safety or the safety of others.
The ESP system has 2 available operating modes in 2WD,
4WD Part Time, 4WD Full Time (Selec-Trac Only), and on
2WD vehicles. The system has a single operating mode in
4WD Low Range.
130 UNDERSTANDING THE FEATURES OF YOUR VEHICLE