1993 Pontiac Grand Prix Owner's Manual - Page 100

Engine Coolant Temperature Gage You have a gagethat shows the engine coolant temperature. If the gage pointer moves into the red area, your engineis too hot! Low Coolant WarningLight That reading means the same thing as the warning light. It means that your engine coolant has overheated. If you have been operating your vehicle under normal driving conditions, you should pull off the road, stop your vehicleand turn off the engine as soon as possible. HOT COOLANT CAN BURN YOU BADLY! In Problems on the Road, this manual shows what to do. See the Index under Engine Overheating. If this light comeson, your system is low on coolant and the engine may overheat. See the Index under Engine Coolant and have your vehicle serviced as soon as you can.