Volvo 2010 V70 Owner's Manual page 113

HDC can be deactivated at any time. If this is
done while driving down a steep hill, the sys-
tem's braking effect will decrease gradually.
NOTE
Engine response to pressure on the accel-
erator pedal may be slightly slower than
normal when HDC is activated.
03 Your driving environment
Hill Descent Control (HDC)
03
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