See also:

Keyless drive information messages
If all of the PCCs are removed from the vehicle while the engine is running or if the ignition is in mode II (see page 82) and all of the doors are closed, a message will appear in the instrumen ...

Refrigerant
Volvo cares about the environment. The air conditioning system in your car contains a CFC-free refrigerant – R134a. This substance will not deplete the ozone layer. The air conditioning system ...

Heated oxygen sensors
The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The r ...