2010 JEEP GRAND CHEROKEE brake

NOTE:
If ACC is resumed or set with the ESC/TCS
off, ESC will automatically be re-engaged.
To Turn OffThe system will turn off and erase the set speed
in memory if:
•You push and release the ON/OFF button.
• You turn OFF the ignition.
• You switch off ESC.
• You switch to Four-Wheel Drive Low.
To Resume SpeedPress the RES +button and release. Then
remove your foot from the accelerator pedal.
The EVIC will display the last set speed.
NOTE:
You can resume ACC from a minimum of
20 mph (32 km/h).
WARNING!
The Resume function should only be used if
traffic and road conditions permit. Resuming a
set speed that is too high or too low for
prevailing traffic and road conditions could
cause the vehicle to accelerate or decelerate
too sharply for safe operation. This could
cause a collision and/or serious injury.
To Vary the Speed SettingWhile ACC is set, you can increase the set
speed by pressing and holding the RES +
button. If the button is continually pressed, the
set speed will continue to increase in 5 mph
(10 km/h) increments until the button is re-
leased. The increase in set speed is reflected in
the EVIC display. Pressing the RES
+button once will result in a
1 mph (2 km/h) increase in set speed. Each
subsequent tap of the button results in an
increase of 1 mph (2 km/h).
While ACC is set, the set speed can be de-
creased by pressing and holding the SET -
button. If the button is continually pressed, the
set speed will continue to decrease in 5 mph
(10 km/h) increments until the button is re-
leased. The decrease in set speed is reflected
in the EVIC display.
Pressing the SET -button once will result in a
1 mph (2 km/h) decrease in set speed. Each
subsequent tap of the button results in a de-
crease of 1 mph (2 km/h).
NOTE:
• When you use the SET - button to decel-
erate, if the engine’s braking power does
not slow the vehicle sufficiently to reach
the set speed, the brake system will auto-
matically slow the vehicle.
• The ACC system can only apply a maxi-
mum of 25% of the vehicle’s braking ca-
pability and will not bring the vehicle to a
complete stop.
Adaptive Cruise Control Cancelled
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•The ACC system maintains set speed
when driving up hill and down hill. How-
ever, a slight speed change on moderate
hills is normal. In addition, downshifting
may occur while climbing uphill or de-
scending downhill. This is normal opera-
tion and necessary to maintain set speed.
Setting the Following Distance in
ACC
The specified following distance for ACC can
be set by varying the distance setting between
3 (long), 2 (medium), and 1 (short). Using this
distance setting and the vehicle speed, ACC
calculates and sets the distance to the vehicle
ahead. This distance setting displays in the
EVIC. To change the distance setting, press the Dis-
tance button and release. Each time the button
is pressed, the distance setting adjusts be-
tween long, medium, and short.
If there is no vehicle ahead, the vehicle will
maintain the set speed. If a slower moving
vehicle is detected in the same lane, the EVIC
displays the “Sensed Vehicle Indicator” icon,
and the system adjusts vehicle speed auto-
matically to maintain the distance setting, re-
gardless of the set speed.The vehicle will then maintain the set distance
until:
•
The vehicle ahead accelerates to a speed
above the set speed.
• The vehicle ahead moves out of your lane or
view of the sensor.
• The vehicle ahead slows to a speed below
15 mph (24 km/h) and the system automati-
cally disengages itself.
• The distance setting is changed.
• The system disengages. (Refer to the infor-
mation on ACC Activation).
The maximum braking applied by ACC is lim-
ited; however, the driver can always apply the
brakes manually, if necessary.
NOTE:
The brake lights will illuminate whenever the
ACC system applies the brakes.Distance Set
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A Proximity Warning will alert the driver if ACC
predicts that its maximum braking level is not
sufficient to maintain the set distance. If this
occurs, a visual alert “BRAKE” will flash in the
EVIC and a chime will sound while ACC con-
tinues to apply its maximum braking capacity.
When this occurs, you should immediately ap-
ply the brakes as needed to maintain a safe
distance from the vehicle ahead.
Adaptive Cruise Control (ACC) MenuThe EVIC displays the current ACC system
settings. The EVIC is located in the upper part
of the instrument cluster between the speed-ometer and the tachometer. The information it
displays depends on ACC system status.
Menu Button
Press the MENU button (located
on the steering wheel) repeatedly
until one of the following displays
in the EVIC:
Adaptive Cruise Control Off When ACC is deactivated, the display willread “Adaptive Cruise Control Off.”
Adaptive Cruise Control Ready When ACC is activated but the vehiclespeed setting has not been selected, the
display will read “Adaptive Cruise Control
Ready.”
ACC SET When ACC is set, the set speed willdisplay.
The set speed will continue to display in
place of the odometer reading when
changing the EVIC display while ACC is
set. The ACC screen will display once again if any
ACC activity occurs, which may include any of
the following:
•Set Speed Change
• Distance Setting Change
• System Cancel
• Acquisition/Loss of Target
• Driver Override
• System Off
• ACC Proximity Warning
• ACC Unavailable Warning
Brake Alert
Example Only
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Precautions While Driving with ACCIn certain driving situations, ACC may have
detection issues. In these cases, ACC may
brake late or unexpectedly. The driver needs to
stay alert and may need to intervene.
Adding a Trailer Hitch
The weight of a trailer hitch may affect the
performance of ACC. If there is a noticeable
change in performance following the installa-
tion of a hitch, such as reduced detection
range, please see your authorized dealer for
service.
Offset Driving
ACC may not detect a vehicle in the same lane
that is offset from your direct line of travel. There
will not be sufficient distance to the vehicle
ahead. The offset vehicle may move in and out
of the line of travel, which can cause your
vehicle to brake or accelerate unexpectedly.Turns and Bends
In turns or bends, ACC may detect a vehicle
ahead too late or too early. This may cause your
vehicle to brake late or unexpectedly. Give
extra attention in curves and be ready to apply
the brakes if necessary. Be sure to select an
appropriate speed while driving in curves.
ACC may occasionally provide braking and/or
a driver alert that you consider unnecessary.
This may be the system’s response to signs,
guardrails, and other stationary objects in a
curve. This may also occur at the base of steep
hills. This is normal operation and your vehicle
does not require service.
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Using ACC on Hills
When driving on hills, ACC may not detect a
vehicle in your lane. Depending on the speed,
vehicle load, traffic conditions, and the steep-
ness of the hills, ACC performance may be
limited.Lane Changing
ACC will not detect a vehicle until it is com-
pletely in the lane in which you are traveling. In
the illustration shown, ACC has not yet de-
tected the vehicle changing lanes and it may
not detect the vehicle until it’s too late for the
ACC system to take action. ACC will not detect
a vehicle until it is completely in the lane. There
will not be sufficient distance to the lane-
changing vehicle. Always be attentive and
ready to apply the brakes if necessary.Narrow Vehicles
Some narrow vehicles traveling near the outer
edges of the lane or edging into the lane are not
detected until they have moved fully into the
lane. There will not be sufficient distance to the
vehicle ahead.
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Stationary Objects and Vehicles
ACC does not react to stationary objects and
stationary vehicles. For example, ACC will not
react in situations where the vehicle you are
following exits your lane and the vehicle ahead
is stopped in your lane. Always be attentive and
ready to apply the brakes if necessary.
Normal (Fixed Speed) Cruise
Control Mode
In addition to Adaptive Cruise Control mode, a
normal (fixed speed) Cruise Control mode is
available for cruising at fixed speeds. The
normal Cruise Control mode is designed to
maintain a set cruising speed without requiring
the driver to operate the accelerator. CruiseControl can only be operated if the vehicle
speed is above 25 mph (40 km/h).
To change modes, press the MODE button
when the system is in either the OFF, READY, or
SET position. “Cruise Ready” will be displayed
if the system was in ACC READY or ACC SET
position. “Cruise Off” will be displayed if the
system was in the ACC OFF position. To switch
back to Adaptive Cruise Control mode, press
the MODE button a second time.
WARNING!
In the normal Cruise Control mode, the sys-
tem will not react to vehicles ahead. In addi-
tion, the proximity warning does not activate
and no alarm will sound even if you are too
close to the vehicle ahead since the presence
of the vehicle ahead nor the vehicle-to-vehicle
distance is detected. Be sure to maintain a
safe distance between your vehicle and the
vehicle ahead. Always be aware which mode
is selected.
To set a Desired Speed
When the vehicle reaches the speed desired,
press the SET
-button and release. The EVIC
will display the set speed.
NOTE:
You must observe the display when setting
or changing speed, not the speedometer.
To Vary the Speed Setting
There are two ways to change the set speed:
• Use the accelerator pedal to adjust the ve-
hicle to the desired speed and press the SET
- button.
• Tap the RES +or SET -button to increase or
decrease the set speed in 1 mph (1 km/h)
increments respectively. Hold the RES +or
SET -button for 5 mph (10 km/h) increments.
To Cancel
The system will disable normal Cruise Control
without erasing the memory if:
• You softly tap or depress the brake pedal.
• You press the CANCEL button.
• The Electronic Stability Control/Traction Con-
trol System (ESC/TCS) activates.
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To Resume
Press the RES+button and then remove your
foot from the accelerator pedal. The EVIC will
display the last set speed.
To Turn Off
The system will turn off and erase the set speed
in memory if:
• You push and release the ON/OFF button.
• You turn off the ignition.
• You switch off ESC.
• You engage Four-Wheel Drive Low.
If the Cruise Control system is turned off and
reactivated, the system will return to the last
driver setting (ACC or Normal Cruise Control).Forward Collision Warning —
If Equipped
Forward Collision Warning (FCW) warns the
driver of a potential collision with the vehicle in
front of you and prompts the driver to take
action in order to avoid the collision.
FCW monitors the information from the forward
looking sensor as well as the Electronic Brake
Controller (EBC), wheel speed sensors, i.e., to
calculate a probable rear-end collision. When
the system determines that a rear-end collision
is probable a visual warning is displayed on the
EVIC, and an audible warning is also provided.
When the system determines a collision with
the vehicle in front of you is no longer probable,
the warning message will be deactivated.
WARNING!
Forward Collision Warning (FCW) is not in-
tended to avoid a collision on its own. The
driver has the responsibility to avoid a colli-
sion by controlling the vehicle via braking and
steering. Failure to follow this warning could
lead to serious injury or death.
FCW Message
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13. Seat Belt Reminder LightWhen 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 the driver or
front passenger’s seat belt is unbuckled, a
chime will sound. After the bulb check or when
driving, if the driver or front passenger seat belt
remains unbuckled, the Seat Belt Indicator
Light will flash or remain on continuously. Refer
to “Occupant Restraints” in “Things To Know
Before Starting Your Vehicle” for further infor-
mation.
14. Brake Warning Light This light monitors various brake
functions, including brake fluid
level and parking brake applica-
tion. If the brake light turns on, it
may indicate that the parking
brake is applied, that the brake
fluid level is low, or that there is a problem with
the anti-lock brake system reservoir.
If the light remains on when the parking brake
has been disengaged, and the fluid level is at
the full mark on the master cylinder reservoir, it
indicates a possible brake hydraulic system malfunction or that a problem with the Brake
Booster has been detected by the Anti-Lock
Brake System (ABS) / Electronic Stability Pro-
gram (ESP) system. In this case, the light will
remain on until the condition has been cor-
rected. If the problem is related to the brake
booster, the ABS pump will run when applying
the brake and a brake pedal pulsation may be
felt during each stop.
The dual brake system provides a reserve
braking capacity in the event of a failure to a
portion of the hydraulic system. A leak in either
half of the dual brake system is indicated by the
Brake Warning Light, which will turn on when
the brake fluid level in the master cylinder has
dropped below a specified level.
The light will remain on until the cause is
corrected.
NOTE:
The light may flash momentarily during
sharp cornering maneuvers, which change
fluid level conditions. The vehicle should
have service performed, and the brake fluid
level checked.
If brake failure is indicated, immediate repair is
necessary.
WARNING!
Driving a vehicle with the red brake light on is
dangerous. Part of the brake system may
have failed. It will take longer to stop the
vehicle. You could have a collision. Have the
vehicle checked immediately.
Vehicles equipped with the Anti-Lock Brake
System (ABS), are also equipped with Elec-
tronic Brake Force Distribution (EBD). In the
event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light.
Immediate repair to the ABS system is re-
quired.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from the
OFF position to the ON/RUN position. The light
should illuminate for approximately two sec-
onds. The light should then turn off unless the
parking brake is applied or a brake fault is
detected. If the light does not illuminate, have
the light inspected by an authorized dealer.
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