Volvo XC90 TWIN ENGINE 2019 Owner's Manual page 305

If the car is unlocked and then locked again,
the double lock function must be deactivated
again.
The system is reset the next time the engine is
started.
Related information
Double lock* (p. 302)
•
Alarm* (p. 299)
•
KEY, LOCKS AND ALARM
303
* Option/accessory.