Cadillac CTS 2015 Owner's Manual page 219

9-36 Driving and Operating
The ACC indicator displays in the
instrument cluster and Head-Up
Display (HUD) (if equipped). When
the ACC is active, the indicator
turns green.
Be mindful of speed limits,
surrounding traffic speeds, and
weather conditions when selecting
the set speed.
Resuming a Set Speed
If the ACC is set at a desired speed
and then the brakes are applied, the
ACC is disengaged without erasing
the set speed from memory.
To begin using ACC again, press
+RES up briefly. The vehicle returns
to the previous set speed.
Increasing Speed While ACC is at
a Set Speed
If ACC is already activated, do one
of the following:
Use the accelerator to get to the
higher speed. Press SET down.
Release the control and the
accelerator pedal. The vehicle
will now cruise at the higher
speed.
When the accelerator pedal is
pressed, ACC will not brake
because it is overridden.
A warning message will appear
on the Driver Information Centre
(DIC) and the Head-Up Display
(HUD) (if equipped). See Cruise
Control Messages on page 5-37.
Press and hold+RES up until the
desired set speed appears on
the display, then release it.
To increase vehicle speed in
small increments, press +RES
up to the first detent. For each
press, the vehicle goes 1 km/h
(1 mph) faster.
To increase vehicle speed in
larger increments, press +RES
up to the second detent. For
each press, the vehicle speed
increases to the next 5 km/h
(5 mph) mark on the
speedometer.
When it is determined that there is
no vehicle ahead or the vehicle
ahead is beyond the selected
following gap, then the vehicle
speed will increase to the set speed.
The speedometer reading can be
displayed in either English or metric
units. See Instrument Cluster on
page 5-10. The increment value
used depends on the units
displayed.
Reducing Speed While ACC is at a
Set Speed
If ACC is already activated, do one
of the following:
Use the brake to get to the
desired lower speed. Press
SET down and release the