2013 JEEP GRAND CHEROKEE brake sensor

ADAPTIVE CRUISE CONTROL
(ACC) — IF EQUIPPED
Adaptive Cruise Control (ACC) increases the
driving convenience provided by cruise control
while traveling on highways and major road-
ways. However, it is not a safety system and not
designed to prevent collisions.
ACC will allow you to keep cruise control en-
gaged in light to moderate traffic conditions
without the constant need to reset your cruise
control. ACC utilizes a radar sensor and a
forward facing camera designed to detect a
vehicle directly ahead of you.
NOTE:
•If the sensor does not detect a vehicle
ahead of you, ACC will maintain a fixed
set speed.
• If the ACC sensor detects a vehicle ahead,
ACC will apply limited braking or accel-
eration (not to exceed the original set
speed) automatically to maintain a preset
following distance, while matching the
speed of the vehicle ahead.
WARNING!
•Adaptive Cruise Control (ACC) is a conve-
nience system. It is not a substitute for
active driving involvement. It is always the
driver’s responsibility to be attentive of
road, traffic, and weather conditions, ve-
hicle speed, distance to the vehicle ahead;
and, most importantly, brake operation to
ensure safe operation of the vehicle under
all road conditions. Your complete atten-
tion is always required while driving to
maintain safe control of your vehicle. Fail-
ure to follow these warnings can result in a
collision and death or serious personal
injury.
• The ACC system:
• Does not react to pedestrians, on-
coming vehicles, and stationary ob-
jects (e.g., a stopped vehicle in a
traffic jam or a disabled vehicle).
(Continued)
WARNING!(Continued)
•Cannot take street, traffic, and
weather conditions into account, and
may be limited upon adverse sight
distance conditions.
• Does not always fully recognize com-
plex driving conditions, which can
result in wrong or missing distance
warnings.
• Can only apply a maximum of 40% of
the vehicle’s braking capability, and
will not bring the vehicle to a com-
plete stop.
11 9

To Vary The Speed Setting
There are two ways to change the set speed:
•
Use the accelerator pedal to adjust the vehicle
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 (1.6 km/h)
increments respectively. Hold the RES +or
SET -button for 5 mph (8 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.
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 the Normal Fixed Speed ON/OFF
button.
• You turn off the ignition.
• You engage Four-Wheel Drive Low.
Forward Collision Warning — If
Equipped
The Forward Collision Warning (FCW) system
provides the driver with audible and visual
warnings (within the EVIC) when it detects a
potential frontal collision. The warnings are in-
tended to provide the driver with enough time to
react and avoid the potential 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 warning message (both audible and
visual) will be displayed on the EVIC. When the
system determines a collision with the vehicle in front of you is no longer probable, the warning
message will be deactivated.
NOTE:
•
The minimum speed for FCW activation is
10 mph (16 km/h).
• When entering or driving in a curve, the
FCW alerts may be triggered on objects
other than vehicles such as guard rails or
sign posts based on the course predic-
tion. This is expected and is a part of
normal FCW activation and functionality.
FCW Message
131

•Unstored Messages Until RUN
These messages deal primarily with the Re-
mote Start feature. This message type is dis-
played until the ignition is in the RUN state.
Examples of this message type are "Remote
Start Aborted - Door Ajar" and"Press Brake
Pedal and Push Button to Start".
• Five Second Unstored Messages
When the appropriate conditions occur, this
type of message takes control of the main
display area for five seconds and then returns to
the previous screen. Examples of this message
type are "Memory System Unavailable - Not in
Park" and"Automatic High Beams On".
The Reconfigurable Telltales section is divided
into the white telltales area on the right, amber
telltales in the middle, and red telltales on the left.
When the appropriate conditions exist, the
EVIC displays the following messages:
•Vehicle Not In Park
• Key Left Vehicle
• Key Not Detected •
Service Keyless System
• Service Tire Pressure System
• Service Park Assist System
• Park Assist System Blinded
• Park Assist Disabled
• Front Sensor Blinded
• Rear Sensor Blinded
• Keyfob Battery Low
• Liftglass Open
• Left Front Turn Signal Lamp Out
• Right Front Turn Signal Lamp Out
• Left Rear Turn Signal Lamp Out
• Right Rear Turn Signal Lamp Out
• Check Tire Pressure
• ESC System Off
• Service Blind Spot System
• 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).
170

•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 Control
(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 “Adaptive
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 tempo-
rary malfunction that limits functionality. Refer
to “Adaptive Cruise Control (ACC)” in “Under-
standing The Features Of Your Vehicle” (if
equipped).
• ACC/FCW Unavailable Service Radar Sen-
sor — If the ACC system turns off due to an
internal system fault that requires service
from an authorized dealer. Refer to “Adaptive
Cruise Control (ACC)” in “Understanding The
Features Of Your Vehicle” (if equipped).
• Coolant Low
• Service Air Suspension System
• Oil Change Due
• Key In Ignition
• Lights On
• Key In Ignition Lights On
• Ignition Or Accessory On
• Ignition Or Accessory On. Lights On
• Turn Signal On
• Turn Signal On
• Park Assist On
• Warning Object Detected
• Memory 1 Profile Set
• Memory 2 Profile Set
171

WARNING!
•The BAS cannot prevent the natural laws
of physics from acting on the vehicle, nor
can it increase the traction afforded by
prevailing road conditions.
• The BAS cannot prevent collisions, includ-
ing those resulting from excessive speed
in turns, driving on very slippery surfaces,
or hydroplaning.
•
The capabilities of a BAS-equipped vehicle
must never be exploited in a reckless or
dangerous manner which could jeopardize
the user’s safety or the safety of others.
Electronic Roll Mitigation (ERM)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 steer-
ing wheel angle and vehicle’s speed are suffi-
cient to potentially cause wheel lift, it then
applies the appropriate brake and may also 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 ma-
neuvers. It cannot prevent wheel lift due to other
factors, such as road conditions, leaving the
roadway, or striking objects or other vehicles.
WARNING!
Many factors, such as vehicle loading, road
conditions, and driving conditions, influence
the chance that wheel lift or rollover may
occur. ERM cannot prevent all wheel lift or
rollovers, especially those that involve leav-
ing the roadway or striking objects or other
vehicles. The capabilities of an ERM-
equipped vehicle must never be exploited in
a reckless or dangerous manner, which
could jeopardize the user’s safety or the
safety of others.
Electronic Stability Control (ESC)This system enhances directional control and
stability of the vehicle under various driving
conditions. ESC corrects for oversteering or
understeering of the vehicle by applying the
brake of the appropriate wheel to assist in
counteracting the oversteer or understeer con-
dition. Engine power may also be reduced to
help the vehicle maintain the desired path.
ESC 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, ESC applies the brake of the
appropriate wheel to assist in counteracting the
oversteer or understeer condition.
•
Oversteer - when the vehicle is turning more
than appropriate for the steering wheel posi-
tion.
• Understeer - when the vehicle is turning less
than appropriate for the steering wheel posi-
tion.
253

NOTE:
To improve the vehicle’s traction when driv-
ing with snow chains, or starting off in deep
snow, sand, or gravel, it may be desirable to
switch to the “Partial Off” mode by pressing
the “ESC OFF” switch. Once the situation
requiring ESC to be switched to the “Partial
Off” mode is overcome, turn ESC back on by
momentarily pressing the “ESC OFF”
switch. This may be done while the vehicle
is in motion.
WARNING!
•When in "Partial Off" mode, the TCS func-
tionality of ESC, (except for the limited slip
feature described in the TCS section), has
been disabled and the "ESC Off Indicator
Light" will be illuminated. When in "Partial
Off" mode, the engine power reduction
feature of TCS is disabled, and the en-
hanced vehicle stability offered by the ESC
system is reduced.
• Trailer Sway control (TSC) is disabled
when the ESC system is in the "Partial Off"
mode.
4WD Low Range
Partial Off
This is the normal operating mode for ESC in
4WD LOW range. Whenever the vehicle is
started in 4WD LOW range, or the transfer case
(if equipped) is shifted from 4WD HIGH range or
NEUTRAL to 4WD LOW range, the ESC sys-
tem will be in the “Partial Off” mode.Trailer Sway Control (TSC)TSC uses sensors in the vehicle to recognize
an excessively swaying trailer and will take the
appropriate actions to attempt to stop the sway.
The system may reduce engine power and
apply the brake of the appropriate wheel(s) to
counteract the sway of the trailer. TSC will
become active automatically once an exces-
sively swaying trailer is recognized. No driver
action is required. Note that TSC cannot stop all
trailers from swaying. Always use caution when
towing a trailer and follow the trailer tongue
weight recommendations. Refer to “Trailer Tow-
ing” in “Starting and Operating” for further infor-
mation. When TSC is functioning, the “ESC
Activation/Malfunction Indicator Light” will flash,
the engine power may be reduced and you may
feel the brakes being applied to individual
wheels to attempt to stop the trailer from sway-
ing. TSC is disabled when the ESC system is in
the “Partial Off” mode.
ESC OFF Switch
255