Hyundai Tucson: Braking system / Hill-Start Assist Control (HAC)
The Hill-Start Assist Control (HAC) prevents the vehicle from rolling backwards when starting a vehicle from a stop on a hill. The system operates the brakes automatically for approximately 2 seconds and releases the brake when the accelerator pedal is depressed or after 2 seconds.
WARNING
Always be ready to depress the accelerator pedal when starting off on a incline. The HAC activates only for approximately 2 seconds.
✽ NOTICE
- The HAC does not operate when the shift lever is in P (Park) or N (Neutral)
- The HAC activates even though the ESC (Electronic Stability Control) is off but does not activate when the ESC has malfunctioned.
Vehicle Stability Management (VSM)
Vehicle Stability Management (VSM) helps ensure the vehicle stays stable when
accelerating or braking suddenly on wet, slippery and rough roads where traction
over the four tires can suddenly beco ...
Downhill Brake Control (DBC)
The Downhill Brake Control (DBC) supports the driver come down a steep hill without
depressing the brake pedal. It slows down the vehicle under 5mph (8 km/h) and lets
the driver concentrate on ...
Other information:
Hyundai Tucson (LM) 2010-2015 Service Manual: Pressure Sensor Description and Operation
Description
The 4WD ECU makes a Motor Pump(Actuator) turn round for
generating an oil pressure. And then it presses a multiple disk clutch
and transfers the generated torque into rear wheels. Its torque value
varies according to a pressure status. ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Oil Pump Description and Operation
Description
The oil pump is built-in as a single unit with the 2/6 brake
chamber. Rotation of the pump builds the hydraulic pressure needed for
the lubrication of the various parts of the transaxle and operation of
the clutch and brakes. The oil also circulates through the torque
converte ...
