Volvo XC90: Starting and driving / Parking brake malfunction
If you are unable to deactivate or activate the parking brake after several attempts,
contact an authorized Volvo workshop. A audible warning signal will sound if the
parking brake is activated while the vehicle is being driven.
If the vehicle must be parked before the problem is rectified, turn the wheels
as when parking on an incline and put the gear selector in P.
Low battery charge level
If the battery charge level is too low, it will not be possible to activate or
deactivate the parking brake. Connect an auxiliary battery to the vehicle if the
battery is discharged.
Replacing brake pads
Due to the design of the electric parking brake, the rear brake pads must be
replaced by a workshop. An authorized Volvo workshop is recommended.
Symbols in the instrument panel

A Canadian models.
B US models.
Settings for automatically activating the parking brake
Choose whether the parking brake should be activated automatically when the
vehicle is switched off...
With the Auto-hold brake function, the driver can release the brake pedal
and the brakes will remain applied, for example, when the vehicle has stopped at
a traffic light or intersection...
Other information:
The headlight bulbs can be replaced without the assistance of a workshop,
but before a bulb can be replaced, the plastic cover over the headlight needs to
be removed.
Lift the rubber strip by pressing
it inward into the engine compartment.
Release the pins in the plastic
cover's four clips by pressing them down with a screwdriver or similar object and
remove the covering...
Sound reproduction quality is preset but can also be adjusted.
The system's volume is normally adjusted using the volume control below the center
display or the right-side steering wheel keypad. This applies, for example, when
playing music or the radio or during phone calls and active traffic messages...