2007 Nissan Sentra Owner's Manual - Page 80
2007 Nissan Sentra Manual
Page 80 highlights
CAUTION If the gauge indicates a coolant temperature near the hot (H) end of the normal range, reduce vehicle speed to decrease the temperature. If the gauge is over the normal range, stop the vehicle as soon as safely possible. If the engine is overheated, continued operation of the vehicle may seriously damage the engine. See "If your vehicle overheats" in the "In case of emergency" section for immediate action required LIC1020 LIC1114 ENGINE COOLANT TEMPERATURE GAUGE NOTE: The ignition key must be in the ON position for the gauge to give a reading. The gauge indicates the engine coolant temperature. The engine coolant temperature is within the normal range when the reading is within the zone 1 shown in the illustration. The engine coolant temperature varies with the outside air temperature and driving conditions. ENGINE OIL PRESSURE GAUGE (if so equipped) The gauge indicates the engine lubrication system oil pressure while the engine is running. When the engine speed is high, the engine oil pressure is also high. When the engine speed is low, the gauge may indicate low oil pressure. CAUTION ● This gauge is not designed to indicate low engine oil level. Use the dipstick to check the oil level. (See "Engine oil" in the "Maintenance and do-it-yourself" section.) 2-6 Instruments and controls