2003 Chevrolet Impala Owner's Manual - Page 288

Notice: In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant and the proper coolant --You can be burned if ,- u spil oolant o l o t engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Don't spill coolant on a hot engine. When the coolant in the coolant recovery tank is at the COLD mark, start your vehicle. If the overheat warning continues, there's one more thing you can try. You can add the proper coolant mixture directly to the radiator, but be sure the cooling system is cool before you do it. The coolant recovery tank is located in the rear of the engine compartment on the passenger's side of the veilick. Set: Elryiljt: Cu/ijparirijt:r/i Gver view utr page 5-12 for more information on location. 5-35