Subaru Ascent 2023 Manual page 385

1 Starting forward facing uphill
2 Starting backward facing downhill
A Brake pedal
When the vehicle has stopped with the
brake pedal depressed, the Hill start assist
system operates.
Braking power is maintained temporarily
(for approximately 2 seconds) by the Hill
start assist system after the brake pedal is
released. The driver is therefore able to
start the vehicle in the same way as on a
level grade, just using the accelerator
pedal.
If the braking power of the Hill start assist
system is insufficient after the brake pedal
is released, apply more braking power by
depressing the brake pedal again.
The Hill start assist system may not
operate on slight grades. Also, the Hill
start assist system does not operate in the
following cases.
Hill start assist system
. When starting backward facing uphill
. When starting forward facing downhill
. While the parking brake is applied
. While the ignition switch is in the "ACC"
or "LOCK"/"OFF" position
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