See also:

Tire Pressure Monitoring System (TPMS)
The tire pressure monitoring system1 uses sensors mounted in the tire valves to check inflation pressure levels. When the vehicle is moving at a speed of approximately 20 mph (30 km/h) or faster, ...

Security
The Volvo C30's security systems were developed in association with the security experts at Thatcham. The C30 is fitted with a wide range of features designed to protect against burglary, theft or a ...

Automatic relocking
If the doors are unlocked, the locks will automatically reengage (re-lock) and the alarm will rearm after 2 minutes unless a door or the tailgate has been opened. ...