2012 JEEP GRAND CHEROKEE Owners Manual

To Set A Desired Speed
Turn the Electronic Speed Control ON. When the vehicle
has reached the desired speed, press the SET (-) button
and release. Release the accelerator and the vehicle will
operate at the selected speed.
NOTE:
The vehicle should be traveling at a steady speed
and on level ground before pressing the SET button.
To Deactivate
A soft tap on the brake pedal, pushing the CANCEL
button, or normal brake pressure while slowing the
vehicle will deactivate Electronic Speed Control without
erasing the set speed memory. Pressing the ON/OFF
button or turning the ignition switch OFF erases the set
speed memory.
To Resume Speed
To resume a previously set speed, push the RES (+)
button and release. Resume can be used at any speed
above 20 mph (32 km/h).
To Vary The Speed Setting
When the Electronic Speed Control is set, you can in-
crease speed by pushing the RES (+) button. If the button
is continually pressed, the set speed will continue to
increase until the button is released, then the new set
speed will be established.
Pressing the RES (+) button once will result ina1mph
(1.6 km/h) increase in set speed. Each subsequent tap of
the button results in an increase of 1 mph (1.6 km/h).
To decrease speed while the Electronic Speed Control is
set, push the SET (-) button. If the button is continually
held in the SET (-) position, the set speed will continue to
decrease until the button is released. Release the button
when the desired speed is reached, and the new set speed
will be established.
Pressing the SET (-) button once will result ina1mph
(1.6 km/h) decrease in set speed. Each subsequent tap of
the button results in a decrease of 1 mph (1.6 km/h).
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 199

To Accelerate For Passing
Press the accelerator as you would normally. When the
pedal is released, the vehicle will return to the set speed.
Using Electronic Speed Control On Hills
The transmission may downshift on hills to maintain the
vehicle set speed.
NOTE:The Electronic Speed Control system maintains
speed up and down hills. A slight speed change on
moderate hills is normal.
On steep hills, a greater speed loss or gain may occur so
it may be preferable to drive without Electronic Speed
Control.
WARNING!
Electronic Speed Control can be dangerous where the
system cannot maintain a constant speed. Your ve-
hicle could go too fast for the conditions, and you
could lose control and have an accident. Do not use
Electronic Speed Control in heavy traffic or on roads
that are winding, icy, snow-covered or slippery.
200 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

ADAPTIVE CRUISE CONTROL (ACC) — IF
EQUIPPED
Adaptive Cruise Control (ACC) increases the driving
convenience provided by cruise control while traveling
on highways and major roadways. However, it is not a
safety system and not designed to prevent collisions.
ACC will allow you to keep cruise control engaged in
light to moderate traffic conditions without the constant
need to reset your cruise control. ACC utilizes a radar
sensor 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 acceleration (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 convenience
system. It is not a substitute for active driving
involvement. It is always the driver ’s responsibil-
ity to be attentive of road, traffic, and weather
conditions, vehicle speed, distance to the vehicle
ahead; and, most importantly, brake operation to
ensure safe operation of the vehicle under all road
conditions. Your complete attention is always re-
quired while driving to maintain safe control of
your vehicle. Failure to follow these warnings can
result in a collision and death or serious personal
injury.(Continued)
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 201

WARNING! (Continued)
•The ACC system:
Does not react to pedestrians, oncoming ve-
hicles, and stationary objects (e.g., a stopped ve-
hicle in a traffic jam or a disabled vehicle).
Cannot take street, traffic, and weather condi-
tions into account, and may be limited upon ad-
verse sight distance conditions.
Does not predict the lane curvature or the move-
ment of preceding vehicles and will not compen-
sate for such changes.
Does not always fully recognize complex driv-
ing conditions, which can result in wrong or
missing distance warnings.
Can only apply a maximum of 25% of the
vehicle’s braking capability, and will not bring the
vehicle to a complete stop.
WARNING!
You should switch off the ACC system:
•When driving in fog, heavy rain, heavy snow,
sleet, heavy traffic, and complex driving situations
(i.e., in highway construction zones).
•When entering a turn lane or highway off ramp;
when driving on roads that are winding, icy,
snow-covered, slippery, or have steep uphill or
downhill slopes.
•When towing a trailer up or down steep slopes.
•When circumstances do not allow safe driving at a
constant speed.
Failure to follow these warnings can result in a
collision and death or serious personal injury.
202 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

The Cruise Control system has two control modes:
•Adaptive Cruise Control mode for maintaining an
appropriate distance between vehicles.
•Normal (fixed speed) cruise control mode for cruising
at a constant preset speed. For additional information,
refer to “Normal (Fixed Speed) Cruise Control Mode”
in this section.
NOTE: The system will not react to preceding vehicles.
Always be aware of the mode selected.
You can change the mode by using the Cruise Control
buttons. The two control modes function differently.
Always confirm which mode is selected.
Adaptive Cruise Control (ACC) Operation
The speed control buttons (located on the right side of the
steering wheel) operates the ACC system.
1 — DISTANCE SETTING
2 — RES +
3 — SET -
4 — CANCEL
5 — ON/OFF
6 — MODE
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 203

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
20 mph (32 km/h).
When the system is turned on and in the READY state,
the Electronic Vehicle Information Center (EVIC) dis-
plays “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, RE-
VERSE or NEUTRAL.
•When pushing the RES +button without a previously
set speed in memory.
204 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

To Activate
Push 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.”
WARNING!
Leaving the Adaptive Cruise Control (ACC) system
on when not in use is dangerous. You could acciden-
tally set the system or cause it to go faster than you
want. You could lose control and have a collision.
Always leave the system off when you are not using
it.
Adaptive Cruise Control Ready
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 205

To Set A Desired ACC Speed
When the vehicle reaches the speed desired, push the
SET-button and release. The EVIC will display the set
speed. Remove your foot from the accelerator pedal. If you do
not, the vehicle may continue to accelerate beyond the set
speed. If this occurs:
•The message “DRIVER OVERRIDE” will display in
the EVIC.
•The system will not be controlling the distance be-
tween your vehicle and the vehicle ahead. The vehicle
speed will only be determined by the position of the
accelerator pedal.
ACC Set
206 UNDERSTANDING THE FEATURES OF YOUR VEHICLE