Volvo XC90: Starting and driving / Activating and deactivating Low Speed Control using the function button
(Option/accessory.)
There is a function button for driving at low speeds 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 Low Speed Control in the center display's Function view
- 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.
The low-speed function (LSC1) facilitates and improves control
and traction on rough roads and slippery surfaces, e.g. when towing a trailer on
grass or up boat ramps...
(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...
Other information:
In addition to Volvo factory training, Volvo supports certification by the
National Institute for Automotive Service Excellence (A.S.E.).
Certified technicians have demonstrated a high degree of competence in specific
areas. Besides passing exams, each technician must also have worked in the field
for two or more years before a certificate is issued...
The battery in the remote key must be replaced when it is discharged.
NOTE
All batteries have a limited service life and must eventually be replaced
(does not apply for Key Tag). The battery's service life varies depending on how
often the vehicle/key is used...