Functions and Activation Conditions
Adaptive Cruise Control (ACC) controls speed and
the distance from a vehicle detected in front.
If there is no vehicle in front, ACC operates in the
same way as cruise control when the vehicle is trav-
eling above 10 mph (15 km/h).
If ACC detects a vehicle in front driving at a slower
speed, the engine is defueled, the engine brakes are
activated, and the service brakes are applied, slow-
ing the vehicle to maintain the set following distance.
The standard factory set following distance is 3.6
seconds; this can be adjusted under the Cruise Con-
trol menu under Vehicle Settings.
ACC allows the vehicle to operate in cruise all the
way down to 0 mph (0km/h); as traffic in front of the
vehicle slows and eventually stops, the vehicle will
adjust with the traffic all the way to 0 mph (0km/h).
If the vehicle ahead is stopped for two seconds or
less, ACC will resume when the vehicle ahead
moves. If the vehicle ahead is stopped for more than
two seconds, the driver—after carefully checking sur-
rounding traffic—will need to press the resume but-
ton or tap the accelerator pedal to resume moving
forward.
The ACC will also slow the vehicle if it exceeds the
set speed (on a downhill grade, for example).
When a slower vehicle in front is no longer detected,
the ACC will accelerate the vehicle to the set speed.
IMPORTANT: Nothing should be put between
the driver and the seat, such as a heating pad,
massage pad, or similar items. Doing so may
keep the seat occupancy sensor from function-
ing correctly.
Adaptive Cruise Control cannot be activated, or is
automatically deactivated, if:
•
the driver is not in their seat to activate the
seat occupancy sensor;
•
the vehicle is traveling slower than 10 mph (15
km/h);
•
the transmission is in neutral for more than 5
seconds;
•
reverse gear is selected;
•
the Anti-Lock Braking System (ABS) is deacti-
vated;
•
there is a malfunction in the brake system or
the electronic management system; or
•
the distance sensor initialization is not yet com-
plete.
Activating Adaptive Cruise Control and
Setting the Speed
Activate Adaptive Cruise Control (ACC) by setting the
cruise speed, using the controls on the steering
wheel. See
When driving at the desired speed, press the –/SET
switch on the steering wheel switch pod. ACC will be
activated and the set speed stored.
If cruise control is deactivated, the stored speed can
be activated again by pressing the +/RES switch on
the steering wheel switch pod. When activated, the
driver display will show the adaptive cruise control
symbol and the set speed. ACC will automatically
brake or accelerate the vehicle to maintain the set
speed.
If the brake pedal is pressed, ACC is deactivated au-
tomatically.
If Adaptive Cruise Control becomes unavailable in
vehicles equipped with Detroit Assurance 5.0, a
pop-up message will inform the driver. If the vehicle
is programmed to allow for standard cruise control, a
f611392
09/14/2016
Fig. 6.4, Adaptive Cruise Control (ACC) Screen - ICUC
Detroit Assurance 5.0
6.3
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