The temperature will increase by turning the knob to the right.
The temperature will decrease by turning the knob to the left.
Hyundai Elantra AD (2016-2020) Owners Manual: Limitations of the System
The Smart Cruise Control system may have limits to its ability to detect distance
to the vehicle ahead due to road and traffic conditions.
On curves
The Smart Cruise Control system may not detect a moving vehicle in your
lane, and then your vehicle could accelerate to the set speed. Also ...
Hyundai Elantra AD (2016-2020) Service Manual: Trunk Lid Assembly Components and Components Location
Component Location
1. Trunk lid assembly
...