2005 Chevrolet Aveo Owner's Manual - Page 208

Cooling System When you decide it is safe to lift the hood, here is what you will see: {CAUTION: An electric engine cooling fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. The vehicle should be parked on a level surface. Make sure that the air conditioning is turned off. The coolant level should be between the MIN and MAX marks on the coolant surge tank when the engine is cool. If it is not, you may have a leak at the pressure cap or in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. A. Coolant Surge Tank with Pressure Cap B. Electric Engine Cooling Fan 5-26