Honda Civic 2021 Owner's Manual page 425

uuWhen DrivinguStarting the Engine
■
Hill start assist system
Hill start assist keeps the brake engaged briefly to help prevent the vehicle from
rolling on inclines as you move your foot from the brake pedal to the accelerator.
Put the transmission into
downhill, then release the brake pedal.
424
D , S , or L when facing uphill, or
( ( (
1Hill start assist system
Hill start assist may not prevent the vehicle from
rolling downhill on a very steep or slippery slope, and
will not operate on small inclines.
R when facing
(
Hill start assist is not a replacement for the parking
brake.
Hill start assist will operate even when VSA® is
switched off.