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164 STARTING AND OPERATING
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 (if
equipped). Refer to “Getting To Know Your Instru-
ment Panel” for more information. The speed
decrement shown is dependent on the chosen
speed unit of U.S. (mph) or Metric (km/h):
U.S. Speed (mph)
Pushing the SET (-) button once will result in a
1 mph decrease in set speed. Each subse-
quent 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 instru-
ment cluster display.
Metric Speed (km/h)
Pushing the SET (-) button once will result in a
1 km/h decrease in set speed. Each subse-
quent 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 5 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 (-) button, 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 sufficiently to reach the set speed, the
brake system will automatically slow the
vehicle.
The ACC system decelerates the vehicle to a
full stop when following a target vehicle. If an
ACC host vehicle follows a target vehicle to a
standstill, after two seconds the driver will
either have to push the RES (resume) button,
or apply the accelerator pedal to reengage the
ACC to the existing set speed.
The ACC system maintains set speed when
driving uphill and downhill. 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 uphill and downhill,
the ACC system will cancel if the braking
temperature exceeds normal range (over-
heated).
If “Sport” mode is chosen on the Dynamic
Selector, the ACC system will switch to Sport
mode. The system will become more reactive in
case of acceleration.
2020_FIAT_500X_OM_USA=GUID-B0E0CFCD-ED13-4DFD-975F-620984F05523=1=en=.book Page 164
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