2002 Pontiac Grand Prix Owner's Manual - Page 235

Engine Overheating You will find a coolant temperature gage and a warning light concerning an overheated engine condition on the instrument panel cluster. See "Engine Coolant Temperature Gage" and "Engine Coolant Temperature Light" in the Index. You also have a low coolant light on your instrument panel cluster. See "Low Coolant Light" in the Index. NOTICE: After driving in the overheated engine protection operating mode, to avoid engine damage, allow the engine to cool before attempting any repair. The engine oil will be severely degraded. Repair the cause of coolant loss, change the oil and reset the oil life system. See "Engine Oil" in the Index. Overheated Engine Protection Operating Mode This emergency operating mode allows your vehicle to be driven to a safe place in an emergency situation. If an overheated engine condition exists, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. In this mode, you will notice a significant loss in power and engine performance. The low coolant light may come on and the temperature gage will indicate an overheat condition exists. Driving extended miles (km) and/or towing a trailer in the overheat protection mode should be avoided. 5-11