Kia Niro: Cruise Control system / To set cruise control speed
1. Press the CRUISE / 
button on the
steering wheel, to turn the system on. The cruise indicator light will illuminate.
2. Accelerate to the desired speed, which must be more than approximately 30 km/h (20 mph).
3. Move the lever down (to SET-), and release it at the desired speed. The cruise set indicator light will illuminate. Release the accelerator pedal at the same time. The desired speed will automatically be maintained.
On a steep grade, the vehicle may slow down or speed up slightly while going downhill.
Cruise control switch
CANCEL/O : Cancels cruise control operation.
CRUISE / : Turns cruise control system
on or off.
RES+ : Resumes or increases cruise control speed.
SET- : Sets or decreases cruise control speed. ...
To increase cruise control set speed
Follow either of these procedures:
Move the lever up (to RES+) and hold it.Your vehicle will accelerate. Release
the lever at the speed you want.
Move the lever up (to RES+) and release it ...
Other information:
Kia Niro (DE HEV) Owners Manual: To adjust the sensitivity of smart cruise control
The sensitivity of vehicle speed when following the front vehicle to maintain
the set distance can be adjusted. Go to the User Settings Mode and select the Driving
Assist and select SCC (smart cruise control) and select the Response.You may select
one of the three stages you prefer.
Slow:
...
Kia Niro 2017 (DE HEV) Service Manual: Power Door Mirror Switch Schematic diagrams
Circuit Diagram
Driver Power Window Switch (Non-IMS
Type)
[Auto Folding Mirror
Switch]
[Non-Folding Mirror
Switch]
Driver Power Window Module (IMS Type)
...
