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 air conditioning cools and dehumidifies incoming air as needed.
When the air conditioning is activated, it will be switched on and off automatically
by the climate system as needed.
Tap the symbol in the center
of the climate bar to open Climate view in the center display...
Seat belts should always be worn by all occupants in your vehicle. Children should
be properly restrained using an infant seat, adjustable child seat or booster cushion
as determined by age, weight and height.
Most states and provinces make it mandatory for occupants of a vehicle to use
seat belts...