Hyundai Sonata: To cancel cruise control, do one of the following

Sixth generation YF (2011–2019) / Hyundai Sonata YF 2011-2019 Owner's Manual / Driving your vehicle / Cruise control system / To cancel cruise control, do one of the following

Press the brake pedal.
Press the clutch pedal with a manual transaxle.
Shift the shift lever into N (Neutral) with an automatic transaxle
Press the CANCEL switch located on the steering wheel.
Decrease the vehicle speed lower than the memory speed by 9 mph (15 km/h).
Decrease the vehicle speed to less than approximately 25 mph (40 km/h).

Each of these actions will cancel cruise control operation (the SET indicator light in the instrument cluster will go off), but it will not turn the system off. If you wish to resume cruise control operation, push the RES+ switch located on your steering wheel. You will return to your previously preset speed.

To temporarily accelerate with the cruise control on

If you want to speed up temporarily when the cruise control is on, depress the accelerator pedal. Increased speed will not interfere with cruise control operation or change the set speed. To retu ...

To resume cruising speed at more than approximately 25 mph (40 km/h)

If any method other than the cruise ON/OFF switch was used to cancel cruising speed and the system is still activated, the most recent set speed will automatically resume when the RES+ switch ...