Volvo XC90 T8 TwinEngine Plug-In Hybrid, Owner'S Manual

Page: 345 / 534

STARTING AND DRIVING
* Option/accessory, for more information, see Introduction. 343
Activating HDC
HDC only functions at low speeds.
Using the driving mode control
*
Select the
Off Road
driving mode to activate
HDC.
Select a different drive mode to turn HDC off. If
this is done while the vehicle is on a steep down-
grade, engine braking will decrease gradually.
NOTE
When LSC with HDC is activated by the
Off
Road
drive mode, the feel of the accelerator
pedal and engine response will change.
The function is deactivated when driving at
higher speeds and must be reactivated at
lower speeds if so desired.
Related information
•
Brake functions (p. 340)
•
Low Speed Control (LSC) (p. 391)
•
Drive modes (p. 382)
Hill Start Assist
Hill Start Assist (HSA) helps prevent the vehicle
from rolling backwards when starting up a hill. If
you are backing up a hill, HSA helps prevent the
vehicle from rolling forward.
HSA makes it easier to start or back up on a hill
by retaining pressure on the brake pedal for sev-
eral seconds after the pedal has been released in
order to keep the vehicle at a standstill.
The brakes will be released after several seconds
or when the driver presses the accelerator pedal.
HSA is available even if the Auto-hold braking
function is turned off.
Related information
•
Brake functions (p. 340)
•
Auto-hold brake function (p. 341)