Hyundai Tucson: Cruise control operation / Cruise control will be canceled when

Hyundai Tucson (LM) 2010-2015 Owners Manual / Driving your vehicle / Cruise control system / Cruise control operation / Cruise control will be canceled when

Depressing the brake pedal.
Pressing the CANCEL switch located on the steering wheel.
Pushing the cruise ON/OFF button. Both the CRUISE indicator and the SET indicator will turn OFF.
Moving the shift lever into N (Neutral).
Decreasing the vehicle speed lower than the memory speed by 9 mph (15 km/h).
Decreasing the vehicle speed to less than approximately 25 mph (40 km/h).
The ESC is operating.
Downshifting to the 2nd gear with sports mode.

✽ NOTICE

Each of the above actions will cancel cruise control operation (the SET indicator light in the instrument cluster will go off), but only pressing the cruise ON/OFF button will turn the system off. If you wish to resume cruise control operation, push the lever up (to RES+) located on your steering wheel. You will return to your previously preset speed, unless the system was turned off using the cruise ON/OFF button.

To temporarily accelerate with the cruise control ON

Depress the accelerator pedal.When you take your foot off the accelerator, the vehicle will return to the previously set speed. If you push the lever (1) down (to SET-) at the increased speed, the ...

To resume preset cruising speed

Push the lever (1) up (to RES+). If the vehicle speed is over 25 mph (40 km/h), the vehicle will resume the preset speed. ...

Other information:

Hyundai Tucson (LM) 2010-2015 Owners Manual: Safety precautions
Adjusting the seats so that you are sitting in a safe, comfortable position plays an important role in driver and passenger safety together with the seat belts and air bags in an accident. WARNING Do not use a cushion that reduces friction between the seat and the passenger. The passenger's ...

Hyundai Tucson (LM) 2010-2015 Owners Manual: Seat belt warning light
Seat belt warning light (for driver’s seat) The driver’s seat belt warning light and chime will come on according to the following table when the ignition switch is in the ON position. *1 : The Warning Pattern repeats 11 times with an interval of 24 seconds. If the driver's seat belt i ...