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:
A number of symbols and messages related to Electronic Stability Control (ESC1)
may be displayed in the instrument panel. Several examples are provided below.
A text message can be erased by briefly pressing the
button in the center of the rightside
steering wheel keypad...
(Option/accessory.)
Settings for an iOS device connected through CarPlay1,2.
Automatic start
Tap Settings in the Top view.
Tap Communication Apple
CarPlay and select the desired setting:
Check the box - CarPlay will start automatically when the USB cable
is connected...