Charge Air Cooling System Caution
WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
To avoid being burned, do not remove the charge air coolant cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if the charge air coolant cap is removed while the engine and charge air cooling systems are still hot.