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:
(Option/accessory.)
Settings for Android devices initially connected with Android Auto1.
Automatic start
Tap Settings in the Top view.
Tap Communication Android
Auto and select setting:
Check the box - Android Auto will start automatically when the USB cable
is connected...
The doors and tailgate can be locked and unlocked from inside the vehicle
using the central lock buttons in the front doors.
Central locking
Button with indicator light for locking and unlocking in front
door.
Unlocking using the front door buttons
Press the button to unlock
all side doors and the tailgate...