Coolant Surge Tank Pressure CapNotice: If the pressure cap is not tightly installed,coolant loss and possible engine damage mayoccur. Be sure the cap is properly and tightlysecured.SeeEngine Compartment Overview on page 5-12 forinformation on location.Engine OverheatingYou will find an COOLANT OVER TEMP message oran ENGINE HOT, STOP ENGINE message displayed inthe Driver Information Center (DIC). You will alsohear a chime. There is also an engine coolanttemperature gage on the instrument panel cluster. SeeEngine Coolant Temperature Gage on page 3-49.Overheated Engine ProtectionOperating ModeThis operating mode allows your vehicle to be driven toa safe place in an emergency situation. If an overheatedengine condition exists and the DIC message ENGINEHOT, STOP ENGINE is displayed, an overheatprotection mode which alternates firing groups ofcylinders helps prevent engine damage. In this mode,you will notice a significant loss in power and engineperformance. Driving extended miles (km) in theoverheat protection mode should be avoided.Notice: After driving in the overheated engineprotection operating mode, to avoid engine damage,allow the engine to cool before attempting anyrepair. The engine oil will be severely degraded.Repair the cause of coolant loss, change the oil andreset the oil life system. See “Engine Oil” in theIndex.5-23
