2013 JEEP GRAND CHEROKEE brakes

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, RE-
VERSE or NEUTRAL.
•When pushing the RES+button without a previously
set speed in memory.
To Activate
Push and release the ON/OFF button. The ACC menu in
the EVIC displays “Adaptive Cruise Control 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.”
Adaptive Cruise Control Ready
222 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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 Indi-
cator” icon, and the system adjusts vehicle speed auto-
matically to maintain the distance setting, regardless 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 automatically disengages
itself.•The distance setting is changed.
•The system disengages. (Refer to the information on
ACC Activation).
The maximum braking applied by ACC is limited; how-
ever, the driver can always apply the brakes manually, if
necessary.
NOTE:The brake lights will illuminate whenever the
ACC system applies the brakes.
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 continues to apply its maximum braking
capacity. When this occurs, you should immediately
apply the brakes as needed to maintain a safe distance
from the vehicle ahead.
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 229

distance to the lane-changing vehicle. Always be atten-
tive 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 suffi-
cient distance to the vehicle ahead.
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.
238 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

NOTE:The ParkSense® system will automatically dis-
able when the system detects that a trailer with trailer
brakes has been connected to the Integrated Trailer Brake
Module. The EVIC will display “PARKSENSE OFF”
message for as long as the vehicle is in reverse.
The ParkSense® switch LED will be ON when ParkSense®
is disabled or defective. The ParkSense® switch LED will
be OFF when the system is enabled.
Service The ParkSense® Rear Park Assist
System
When the ParkSense® Rear Park Assist System is mal-
functioning, the instrument cluster will actuate a single
chime, once per ignition cycle, and it will display the
“CLEAN PARK ASSIST SENSORS” or the “SERVICE
PARK ASSIST SYSTEM” message. Refer to “Electronic
Vehicle Information Center (EVIC)” in “Understanding
Your Instrument Panel” for further information. When
the shift lever is moved to REVERSE and the system hasdetected a faulted condition, the EVIC will display the
“PARK ASSIST SYSTEM OFF” message for as long as the
vehicle is in REVERSE. Under this condition, ParkSense
will not operate.
If “CLEAN PARK ASSIST SENSORS” appears in the
Electronic Vehicle Information Center (EVIC) make sure
the outer surface and the underside of the rear fascia/
bumper is clean and clear of snow, ice, mud, dirt or other
obstruction and then cycle the ignition. If the message
continues to appear, see an authorized dealer.
If “SERVICE PARK ASSIST SYSTEM” appears in the
EVIC, see an authorized dealer.
Cleaning The ParkSense® System
Clean the ParkSense® sensors with water, car wash soap
and a soft cloth. Do not use rough or hard cloths. Do not
scratch or poke the sensors. Otherwise, you could dam-
age the sensors.
252 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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 ap-
proximately two seconds. 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.
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) Light
This 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 to-
gether 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.
310 UNDERSTANDING YOUR INSTRUMENT PANEL

•Adaptive Cruise Off — When the Adaptive Cruise
Control (ACC) system is turned off. Refer to “Adaptive
Cruise Control (ACC)” in “Understanding The Fea-
tures Of Your Vehicle” (if equipped).
•ACC Ready — When the ACC system is activated.
Refer to “Adaptive Cruise Control (ACC)” in “Under-
standing 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 Features Of Your Vehicle” (if
equipped).
•ACC Cancelled — To disable the ACC system. Refer to
“Adaptive Cruise Control (ACC)” in “Understanding
The Features Of Your Vehicle” (if equipped).
•Sensed Vehicle Indicator — The system detects 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 accelerator 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 “Understanding The Features Of Your Ve-
hicle” (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 capacity. When this occurs, you should imme-
diately apply the brakes as needed to maintain a safe
distance from the vehicle ahead. Refer to “Adaptive
Cruise Control (ACC)” in “Understanding The Fea-
tures Of Your Vehicle” (if equipped).
318 UNDERSTANDING YOUR INSTRUMENT PANEL

STARTING PROCEDURES
Before starting your vehicle, adjust your seat, adjust the
inside and outside mirrors, fasten your seat belt, and if
present, instruct all other occupants to buckle their seat
belts.
WARNING!
•When leaving the vehicle, always remove the key
fob from the ignition and lock your vehicle.
•Never leave children alone in a vehicle, or with
access to an unlocked vehicle. Allowing children to
be in a vehicle unattended is dangerous for a
number of reasons. A child or others could be
seriously or fatally injured. Children should be
warned not to touch the parking brake, brake pedal
or the shift lever.
(Continued)
WARNING!(Continued)
•Do not leave the key fob in or near the vehicle (or
in a location accessible to children), and do not
leave a vehicle equipped with Keyless Enter-N-
Go™ in the ACC or ON/RUN mode. A child could
operate power windows, other controls, or move
the vehicle.
Automatic Transmission
The shift lever must be in the NEUTRAL or PARK
position before you can start the engine. Apply the brakes
before shifting into any driving gear.5
STARTING AND OPERATING 439

NOTE:If a malfunction occurs, the system will trap the
key fob in the ignition switch to warn you that this safety
feature is inoperable. The engine can be started and
stopped but the key fob cannot be removed until you
obtain service.
Brake/Transmission Shift Interlock System
This vehicle is equipped with a Brake Transmission Shift
Interlock System (BTSI) that holds the transmission
shifter in PARK unless the brakes are applied. To shift the
transmission out of PARK, the engine must be running
and the brake pedal must be pressed.
In 8-speed vehicles, the brake pedal must also be pressed
to shift from NEUTRAL into DRIVE or REVERSE when
the vehicle is stopped or moving at low speeds.
Five-Speed Automatic Transmission
(3.6L Engine) — If Equipped
The shift lever position display (located in the instrument
cluster) indicates the transmission gear range. You must
press the brake pedal to move the shift lever out of PARK
(refer to “Brake/Transmission Shift Interlock System” in
this section). To drive, move the shift lever from PARK or
NEUTRAL to the DRIVE position.
The electronically-controlled transmission provides a
precise shift schedule. The transmission electronics are
self-calibrating; therefore, the first few shifts on a new
vehicle may be somewhat abrupt. This is a normal
condition, and precision shifts will develop within a few
hundred miles (kilometers).
448 STARTING AND OPERATING