Hyundai Tucson: Cruise control operation / To increase cruise control speed

Hyundai Tucson (LM) 2010-2015 Owners Manual / Driving your vehicle / Cruise control system / Cruise control operation / To increase cruise control speed

Push the lever (1) up (to RES+) and hold it, while monitoring the SET speed on the instrument cluster. Release the lever when the desired speed is shown and the vehicle will accelerate to that speed.
Push the lever (1) up (to RES+) and release it immediately. The cruising speed will increase 1.0 mph (1.6 km/h) each time the lever is operated in this manner.
Depress the accelerator pedal. When the vehicle attains the desired speed, push the lever (1) down (to SET-).

To set cruise control speed

1.Push the cruise ON/OFF button on the steering wheel to turn the system on. The CRUISE indicator will illuminate. 2.Accelerate to the desired speed, which must be more than 25 mph (40 km/h). ...

To decrease cruise control speed

Push the lever (1) down (to SET-) and hold it. Your vehicle will gradually slow down. Release the lever at the speed you want to maintain. Push the lever (1) down (to SET-) and release it ...

Other information:

Hyundai Tucson (LM) 2010-2015 Service Manual: Oil hydraulic Motor(Actuator) Description and Operation
Description The 4WD ECM controls the Pump Motor Pump (Actuator) to generating an oil pressure. The pressure engages a multiple disk clutch to transfer torque to the rear wheels. The torque to the rear wheels varies according to the pressure on the clutch. ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Manifold Absolute Pressure Sensor (MAPS) Schematic Diagrams
Circuit Diagram (M/T) (A/T) ...