2011 JEEP GRAND CHEROKEE brakes

Adaptive Cruise Control (ACC)
Operation
The speed control buttons (located on the right
side of the steering wheel) operates the ACC
system.NOTE:
Any chassis/suspension modifications to
the vehicle will effect the performance of the
Adaptive Cruise Control.
Activating Adaptive Cruise Control
(ACC)
You can only activate ACC if the vehicle speed
is above 25 mph (40 km/h).
When the system is turned on and in the READY
state, the Electronic Vehicle Information Center
(EVIC) displays “Adaptive Cruise Ready.”
When the system is OFF, the EVIC displays
“Adaptive Cruise Control Off.”
NOTE:
You cannot enable ACC under the following
conditions:
•
When in Four-Wheel Drive Low.
• When you apply the brakes.
• When the parking brake is set.
• When the automatic transmission is in
PARK, REVERSE or NEUTRAL.
• When pushing the RES + button without a
previously set speed in memory.
To ActivatePush and release the ON/OFF button. The ACC
menu in the EVIC displays “Adaptive Cruise
Ready.”
To turn the system OFF, push and release the
ON/OFF button again. At this time, the system
will turn off and the EVIC will display “Adaptive
Cruise Control Off.”
1 — DISTANCE SETTING
2 — RES +
3 — SET -
4 — CANCEL
5 — ON/OFF
6 — MODE
Adaptive Cruise Control Ready
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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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The light also will turn on when the parking
brake is applied with the ignition switch in the
ON/RUN position.
NOTE:
This light shows only that the parking brake
is applied. It does not show the degree of
brake application.
15. Anti-Lock Brake (ABS) LightThis light monitors the Anti-Lock
Brake System (ABS). The light will
turn on when the ignition switch is
turned to the ON/RUN position and
may stay on for as long as four
seconds.
If the ABS light remains on or turns on while
driving, it indicates that the Anti-Lock portion of
the brake system is not functioning and that
service is required. However, the conventional
brake system will continue to operate normally
if the BRAKE warning light is not on.
If the ABS light is on, the brake system should
be serviced as soon as possible to restore the
benefits of Anti-Lock brakes. If the ABS light
does not turn on when the ignition switch is turned to the ON/RUN position, have the light
inspected by an authorized dealer.
16. 4 LOW
This light alerts the driver that the
vehicle is in the four-wheel drive
LOW mode. The front and rear
driveshafts are mechanically
locked together forcing the front
and rear wheels to rotate at the
same speed. Low range provides a greater
gear reduction ratio to provide increased
torque at the wheels.
For further information on four-wheel drive op-
eration and proper use, refer to “Four-Wheel
Drive Operation — If Equipped” in “Starting
And Operating”.
17. Speedometer
Indicates vehicle speed.
18. Fuel Door Reminder The fuel pump symbol points to the
side of the vehicle where the fuel
door is located. 19. Fuel Gauge
The pointer shows the level of fuel in the fuel
tank when the ignition switch is in the ON/RUN
position.
20. Electronic Vehicle Information Center
(EVIC) White Telltale Area
This area will display the EVIC reconfigurable
white telltales. For further information refer to
“Electronic vehicle Information Center (EVIC)”.
21. Electronic Vehicle Information Center
(EVIC) Amber Telltale Area
This area will display the EVIC reconfigurable
amber caution telltales. For further information
refer to “Electronic vehicle Information Center
(EVIC)”.
22. Electronic Vehicle Information Center
(EVIC) Red Telltale Area
This area will display the EVIC reconfigurable
red telltales. For further information refer to
“Electronic vehicle Information Center (EVIC)”.
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•Blind spot detection unavailable
• Blind spot system off
• Blind spot system unavailable sensor
blocked
• Blind spot system unavailable astronomy
zone — When the Blind Spot Module senses
a tower on the same frequency that it is
interfering with, it will automatically turn the
Blind Spot System off.
• Normal Cruise Ready — When Adaptive
Cruise Control (ACC) system is turned off
and Normal (Fixed Speed) Cruise Control
mode is available. Refer to “Adaptive Cruise
Control (ACC)” in “Understanding The Fea-
tures Of Your Vehicle” (if equipped).
• Adaptive Cruise Off — When the Adaptive
Cruise Control (ACC) system is turned off.
Refer to “Adaptive Cruise Control (ACC)” in
“Understanding The Features Of Your Ve-
hicle” (if equipped).
• ACC Ready — When the ACC system is
activated. Refer to “Adaptive Cruise Control
(ACC)” in “Understanding The Features Of
Your Vehicle” (if equipped). •
ACC Set — After setting the desired speed
in the ACC system. Refer to “Adaptive Cruise
Control (ACC)” in “Understanding The Fea-
tures Of Your Vehicle” (if equipped).
• ACC Cancelled — To disable the ACC sys-
tem. Refer to “Adaptive Cruise Control
(ACC)” in “Understanding The Features Of
Your Vehicle” (if equipped).
• Sensed Vehicle Indicator — The system de-
tects a slower moving vehicle in the same
lane. Refer to “Adaptive Cruise Control
(ACC)” in “Understanding The Features Of
Your Vehicle” (if equipped).
• Driver Override — If you apply the accelera-
tor after setting the desired speed in the
ACC system. Refer to “Adaptive Cruise Con-
trol (ACC)” in “Understanding The Features
Of Your Vehicle” (if equipped).
• Distance Set — After changing the desired
following distance in the ACC system, this
message will display momentarily. Refer to
“Adaptive Cruise Control (ACC)” in “Under-
standing The Features Of Your Vehicle” (if
equipped). •
Brake — If the ACC system predicts that its
maximum braking level is not sufficient to
maintain the set distance, this message will
flash and a chime will sound while ACC
continues to apply its maximum braking ca-
pacity. When this occurs, you should imme-
diately apply the brakes as needed to main-
tain a safe distance from the vehicle ahead.
Refer to “Adaptive Cruise Control (ACC)” in
“Understanding The Features Of Your Ve-
hicle” (if equipped).
• Clean Radar Sensor in the Front of Vehicle —
If the ACC system deactivates due to perfor-
mance limiting conditions. Refer to “Adap-
tive Cruise Control (ACC)” in “Understanding
The Features Of Your Vehicle” (if equipped).
• ACC/FCW Unavailable Vehicle System Error
— If the ACC system turns off due to a
temporary malfunction that limits functional-
ity. Refer to “Adaptive Cruise Control (ACC)”
in “Understanding The Features Of Your Ve-
hicle” (if equipped).
• ACC/FCW Unavailable Service Radar Sen-
sor — If the ACC system turns off due to an
internal system fault that requires service
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