2003 Lincoln Aviator Owner Guide 1st Printing (Spanish) - Page 383
2003 Lincoln Aviator Manual
Page 383 highlights
Instrument Cluster GAUGES Engine coolant temperature gauge Indicates the temperature of the engine coolant. At normal operating temperature, the needle remains within the normal area (the area between the "H" and "C"). If it enters the red section, the engine is overheating. Stop the vehicle as soon as safely possible, switch off the engine immediately and let the engine cool. Refer to Engine coolant in the Maintenance and specifications chapter. Never remove the coolant reservoir cap while the engine is running or hot. Steam and scalding liquid from a hot cooling system can burn you badly. This gauge indicates the temperature of the engine coolant, not the coolant level. If the coolant is not at its proper level the gauge indication will not be accurate. If the gauge enters the red section, the oil pressure/engine coolant and Check Engine/Service Engine Soon indicators illuminate, refer to What you should know about fail-safe cooling in the Maintenance and specifications chapter. 15