Volvo XC90: Starting and driving / Activating and deactivating Hill Descent Control using the function button
(Option/accessory.)
There is a function button for assistance on steep gradients with Hill
Descent Control in the center display's Function view if the vehicle is not
equipped with a drive mode control in the tunnel console.
Selecting Hill Descent Control in the center display's Function view
HDC only works at low speeds.
- Tap the Hill Descent Control button to activate or deactivate the function.

- An indicator light in the button will illuminate when the function is
activated.
When the engine is switched off, the function will be automatically deactivated.
NOTE
The function is deactivated when driving at high speeds and must be reactivated
at lower speeds if so desired.
(Option/accessory.)
The function for assisting when driving downhill (HDC1) is a low-speed
function with increased engine braking. The function makes it possible to increase
or decrease the vehicle's speed on steep downhill gradients by only using the accelerator
pedal, without applying the brakes...
A more economical driving style can help lower fuel consumption.
Before driving
If possible, precondition the vehicle before driving.
If preconditioning is not possible when it is cold outside, use seat and
steering wheel heating first...
Other information:
The low beam bulbs in the halogen headlights can be changed without the help
of a workshop.
Before the bulbs can be replaced, the plastic covering over the headlight must
be removed.
CAUTION
Never touch the bulb glass with your bare fingers. Grease and oils from
your fingers vaporize in the heat and will leave a deposit on the reflector, which
may damage it...
Owner's information is available in several different formats, both digital and printed. The Owner's Manual is available on the vehicle's center display, as a mobile app and on Volvo Cars' support website. There is also a Quick Guide in the glove compartment, as well as a supplement to the Owner's Manual containing information about e...