Volvo XC90: Key, locks and alarm / Arming and disarming the alarm
The alarm is armed when the vehicle is locked and disarmed when the vehicle
is unlocked. The alarm can also be disarmed without a functioning key.
Arming and disarming the alarm
The alarm is armed when the vehicle is locked and disarmed when the vehicle is
unlocked.
Disarming the alarm without a functioning remote key
The vehicle can be unlocked and disarmed even if the remote key is not functioning
e.g. if the battery is discharged.
- Open the driver's door using the detachable key blade.
- This will trigger the alarm.

Location of the backup key reader in the cup holder.
- Place the remote key on the key symbol in the backup reader in the tunnel
console's cup holder.
- Turn the start knob clockwise and release.
- The alarm will be disarmed.
Turning off a triggered alarm
- Press the unlock button on the remote key or put the ignition into mode
I by turning the start knob clockwise and then releasing it.
The alarm emits sound and light signals if anyone without a valid remote key
attempts to break into the vehicle or interferes with the start battery or alarm
siren...
Driver support systems
The vehicle is equipped with a number of driver support systems that can provide the driver with active or passive assistance in various situations...
Other information:
Service and repairs on the air conditioning system should only be done by
an authorized workshop.
Troubleshooting and repairs
The air conditioning system contains a fluorescent tracer substance. Ultraviolet
light is used to search for leaks in the system...
This overview shows some service-related components.
The layout of the engine compartment may vary depending
on model and engine variant.
Coolant expansion tank
Brake fluid reservoir (located
on the driver's side)
Washer fluid filler pipe
Fusebox
Air filter
Engine oil filler pipe
Location of warning decal for the engine compartment...