See also:

Loss of a remote key
If either of the remote keys is lost, the other should be taken with the car to a Volvo retailer. As an anti-theft measure, the code of the lost remote key must be erased from the system. NOTE ...

Using City Safety
NOTE The City Safety™ function is activated automatically each time the engine has been switched off and restarted. On and Off In certain situations, it may be desirable to switch City Safety ...

Immobilizer (start inhibitor)
Each of the keys supplied with your vehicle contains a coded transponder. The code in the key is transmitted to an antenna in the ignition slot where it is compared to the code stored in the s ...