Subaru Impreza 2017 Owner's Manual page 81

(4) When the vehicle speed is between approximately 20 MPH (30 km/h) and 90 MPH (145
km/h), press the RES/SET switch to the "SET/-" or "RES/+".
The vehicle speed at the time the switch is pressed becomes the set vehicle speed, and
constant-speed driving is engaged.
changes from white to green.
The "Obstacle Detected" warning will not activate while Conventional Cruise
Control is functioning.
During Conventional Cruise Control use, accelerator and brake control to
follow the vehicle in front is not performed. Operate the accelerator and brake
pedals as necessary.
On a downhill grade, automatic braking may operate in order to maintain
the set vehicle speed.
When driving on a curve, the vehicle may not accelerate, or may deceler-
ate, even if the set speed is higher than the current vehicle speed.
To return to Adaptive Cruise Control use, cancel the Conventional Cruise
Control then briefly press the
switch. A buzzer will sound (one short beep) when switching to Adaptive
Cruise Control.
S02424
WARNING
CAUTION
NOTE
Conventional Cruise Control
(Green)
/ (following distance setting)
S02414
77