Radiator Cap Removal and Installation: Notes
WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
If the radiator cap is removed when the engine and radiator are still hot, extremely hot fluid and steam may spew out under pressure. This can cause severe burns. Wait until the engine coolant temperature has lowered before removing the radiator cap.