1997 Chevrolet Lumina Owner's Manual - Page 208

If No Steam Is Coming From Your Engine If you get the overheat warning see or hear no but steam, the problem may not be too serious. Sometimes the engine can get alittle too hot when you: Climb a long hill ona hot day. 0 If you nolonger have the overheat warning, you can drive. Just to be safe, drive slower about 10 minutes. for If the warning doesn't come back on, youcan drive normally. If the warning continues, pull over, stop, and park your vehicle right away. If there's still no sign of steam, you idle theengine can for two or three minutes while you're parked, to see if the warning stops. then, if you still have But the warning, turn o f t h e engine and get everyone out of the vehicle until it cools down. You may decide not to lift the hood but to get service help right away. Stop after high-speed driving. Idle for long periods in traffic. Tow a trailer. If you get the overheat warning with no sign of steam, try this for a minuteor so: 1. Turn off your air conditioner. 2. Turn on your heater to hot at the highestfan full speed and open window as necessary. the 3. If you're in a trafficjam, shift to NEUTRAL(N); otherwise, shift to highest gear while driving the which is AUTOMATIC OVERDRIVE (0). 5-14