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DRIVING
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HILL HOLD CONTROL (HHC)
As the subsystem of ESP, HHC can prevent accidents caused by sliding when
the vehicle is started on a slope without using the parking brake.
Driving uphill, without HHCDriving uphill, with HHC
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HILL DESCENT CONTROL (HDC)*
As the subsystem of ESP, HDC allows the vehicle to run at a con﹣
stant low speed while going downhill on an escarpment, slippery
road and other steep slopes by active braking according to input
signals such as engine speed, torque, gear position, etc., so as to
ensure the driver drives the vehicle downhill along the steep slope
safely at a low speed.
Without HDC
With HDC
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