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 Service Manual: Inhibitor Switch Description and Operation
Description Inhibiter Switch contains two contact points. One of these points connects the engine startup when the lever is in the N or P position and turns on the reverse lights. The other contact point monitors the lever's position (PRND) and is used to control gear setting signals. ...

Hyundai Tucson (LM) 2010-2015 Owners Manual: Storage compartments
WARNING NEVER store cigarette lighters, propane cylinders, or other flammable/explosive materials in the vehicle. These items may catch fire or explode if the vehicle is exposed to hot temperatures for extended periods. WARNING ALWAYS keep the storage compartment covers closed securely while ...