2019 JEEP GRAND CHEROKEE LIMITED Owners Manual

WARNING!(Continued)
•Will bring the vehicle to a complete stop while
following a target vehicle and hold the vehicle for
2 seconds in the stop position. If the target vehicle
does not start moving within two seconds the ACC
system will display a message that the system will
release the brakes and that the brakes must be
applied manually. An audible chime will sound
when the brakes are released.
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.
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 or tire size modifications
to the vehicle will effect the performance of the Adaptive
Cruise Control and Forward Collision Warning System.

Activating Adaptive Cruise Control (ACC)
You can only engage ACC if the vehicle speed is above
0 mph (0 km/h).
The minimum set speed for the ACC system is 20 mph
(32 km/h).
When the system is turned on and in the ready state, the
instrument cluster displays “ACC Ready.”
When the system is off, the instrument cluster displays
“Adaptive Cruise Control (ACC) Off.”
NOTE:You cannot engage ACC under the following con-
ditions:
• When in Four-Wheel Drive Low.
• When you apply the brakes.
• When the parking brake is applied.
• When the automatic transmission is in PARK, REVERSE
or NEUTRAL.
• When the vehicle speed is outside of the speed range.
• When the brakes are overheated.
• When the driver ’s door is open at low speeds.
• When the driver ’s seat belt is unbuckled at low speeds. •
ESC Full-Off Mode is active.To Activate/Deactivate
Push and release the Adaptive Cruise Control (ACC)
on/off button. The ACC menu in the instrument cluster
displays “ACC Ready.”
To turn the system off, push and release the Adaptive
Cruise Control (ACC) on/off button again. At this time, the
system will turn off and the instrument cluster displays
“Adaptive Cruise Control (ACC) Off.”

WARNING!
Leaving the Adaptive Cruise Control (ACC) system on
when not in use is dangerous. You could accidentally
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.
To Set A Desired ACC Speed
When the vehicle reaches the speed desired, push the SET
(+)button or the SET (-)button and release. The instrument
cluster display will display the set speed. If the system is set when the vehicle speed is below 20 mph
(32 km/h), the set speed shall be defaulted to 20 mph
(32 km/h). If the system is set when the vehicle speed is
above 20 mph (32 km/h), the set speed shall be the current
speed of the vehicle.
NOTE:
ACC cannot be set if there is a stationary vehicle in
front of your vehicle in close proximity.
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
instrument cluster display.
• The system will not be controlling the distance between
your vehicle and the vehicle ahead. The vehicle speed
will only be determined by the position of the accelera-
tor pedal.
To Cancel
The following conditions cancel the system:
•The brake pedal is applied.
• The CANC button is pushed.
• An Anti-Lock Brake System (ABS) event occurs.

•The gear selector is removed from the DRIVE position.
• The Electronic Stability Control/Traction Control Sys-
tem (ESC/TCS) activates.
• The vehicle parking brake is applied.
• Driver seatbelt is unbuckled at low speeds.
• Driver door is opened at low speeds.
• The braking temperature exceeds normal range (over-
heated).
• A Trailer Sway Control (TSC) event occurs.
To Turn Off
The system will turn off and clear the set speed in memory
if:
•The Adaptive Cruise Control (ACC) on/off button is
pushed.
• The Normal (Fixed Speed) Cruise Control on/off button
is pushed.
• The ignition is turned OFF.
• You switch to Four-Wheel Drive Low.
To Resume
If there is a set speed in memory push the RES (resume)
button and then remove your foot from the accelerator
pedal. The instrument cluster display will display the last
set speed.
NOTE:
•If your vehicle stays at standstill for longer than two
seconds, then the system will cancel and the brake force
will be ramped-out. The driver will have to apply the
brakes to keep the vehicle at a standstill.
• ACC cannot be resumed if there is a stationary vehicle
in-front of your vehicle in close proximity.

To Vary The Speed Setting
To Increase Speed
While ACC is set, you can increase the set speed by
pushing the SET(+)button.
The driver’s preferred units can be selected through the
instrument panel settings. Refer to “Getting To Know Your
Instrument Panel” for more information. The speed incre-
ment shown is dependant on the chosen speed unit of U.S.
(mph) or Metric (km/h):
U.S. Speed (mph)
• Pushing the SET (+)button once will result ina1mph
increase in set speed. Each subsequent tap of the button
results in an increase of 1 mph.
• If the button is continually pushed, the set speed will
continue to increase in 5 mph increments until the
button is released. The increase in set speed is reflected
in the instrument cluster display.
Metric Speed (km/h)
• Pushing the SET (+)button once will result in a 1 km/h
increase in set speed. Each subsequent tap of the button
results in an increase of 1 km/h. •
If the button is continually pushed, the set speed will
continue to increase in 10 km/h increments until the
button is released. The increase in set speed is reflected
in the instrument cluster display.
To Decrease Speed
While ACC is set, the set speed can be decreased by
pushing the SET (-)button.
The driver’s preferred units can be selected through the
instrument panel settings. Refer to “Getting To Know Your
Instrument Panel” for more information. The speed decre-
ment shown is dependant on the chosen speed unit of U.S.
(mph) or Metric (km/h):
U.S. Speed (mph)
• Pushing the SET (-)button once will result ina1mph
decrease in set speed. Each subsequent tap of the button
results in a decrease of 1 mph.
• If the button is continually pushed, the set speed will
continue to decrease in 5 mph decrements until the
button is released. The decrease in set speed is reflected
in the instrument cluster display.
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Metric Speed (km/h)
•Pushing the SET (-)button once will result in a 1 km/h
decrease in set speed. Each subsequent tap of the button
results in a decrease of 1 km/h.
• If the button is continually pushed, the set speed will
continue to decrease in 10 km/h decrements until the
button is released. The decrease in set speed is reflected
in the instrument cluster display.
NOTE:
• When you override and push the SET (+)button or SET
(-) buttons, the new set speed will be the current speed
of the vehicle.
• When you use the SET (-)button to decelerate, if the
engine’s braking power does not slow the vehicle suffi-
ciently to reach the set speed, the brake system will
automatically slow the vehicle. •
The ACC system applies the brake down to a full stop
when following a target vehicle. If an ACC host vehicle
follows a target vehicle to a standstill, the host vehicle
will release the vehicle brakes two seconds after coming
to a full stop.
• The ACC system maintains set speed when driving up
hill and down hill. However, a slight speed change on
moderate hills is normal. In addition, downshifting may
occur while climbing uphill or descending downhill.
This is normal operation and necessary to maintain set
speed. When driving up hill and down hill, the ACC
system will cancel if the braking temperature exceeds
normal range (overheated).
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Setting The Following Distance In ACC
The specified following distance for ACC can be set by
varying the distance setting between four bars (longest),
three bars (long), two bars (medium) and one bar (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 instrument cluster display.
Distance Setting 3 Bars (Long)
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To increase the distance setting, push the Distance Setting
— Increase button and release. Each time the button is
pushed, the distance setting increases by one bar (longer).
To decrease the distance setting, push the Distance Setting
— Decrease button and release. Each time the button is
pushed, the distance setting decreases by one bar (shorter).
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 instrument cluster displays the “Sensed Vehicle
Distance Setting 1 Bar (Short)
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