Cadillac 2013 ATS Owner's Manual page 215

Press and hold SET down until
the desired lower speed is
reached, then release it.
To decrease the vehicle speed in
smaller increments, press SET
down to the first detent. For
each press, the vehicle goes
about 1 km/h (1 mph) slower.
To decrease the vehicle speed in
larger increments, press SET
down to the second detent. For
each press, the vehicle goes
about 5 km/h (5 mph) slower.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster on
page 5 8. The increment value used
depends on the units displayed.
Selecting the Follow Distance
When a slower moving vehicle is
detected ahead, ACC will adjust the
vehicle's speed and attempt to
maintain the follow distance gap
selected.
Press on the steering wheel to
adjust the following gap. Each press
cycles the gap button through three
settings: Far, Medium, or Near.
When pressed, the current gap
setting displays briefly on the
instrument cluster and HUD (if
equipped). The gap setting will be
maintained until it is changed.
Since each gap setting corresponds
to a following time (Far, Medium,
or Near), the following distance will
vary based on vehicle speed. The
faster the vehicle speed, the further
back your vehicle will follow a
vehicle detected ahead. Consider
traffic and weather conditions when
selecting the following gap. The
range of selectable gaps may not be
appropriate for all drivers and
driving conditions.
Changing the gap setting
automatically changes the alert
timing sensitivity (Far, Medium,
or Near) for the Forward Collision
Driving and Operating
Alert (FCA) feature. See Forward
Collision Alert (FCA) System on
page 9 51.
Alerting the Driver
If ACC is engaged, driver action
may be required when:
ACC cannot apply sufficient
braking because of approaching
a vehicle too rapidly.
A temporary condition prohibits
ACC from operating. See
Vehicle Messages on page 5 29.
A malfunction is detected in the
system. See Vehicle Messages
on page 5 29.
When any of these conditions occur,
the collision alert symbol on the
HUD will flash on the windscreen.
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