2013 Chevrolet Express 1500 Cargo Owner Manual - Page 267
2013 Chevrolet Express 1500 Cargo Manual
Page 267 highlights
Vehicle Care How to Add Coolant to the Recovery Tank for Gasoline Engines How to Add Coolant to the Radiator 10-19 { WARNING You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. Notice: This vehicle has a specific coolant fill procedure. Failure to follow this procedure could cause the engine to overheat and be severely damaged. If coolant is needed, add the proper DEX-COOL coolant mixture at the coolant recovery tank. { WARNING Steam and scalding liquids from a hot cooling system can blow out and burn you badly. Never turn the cap when the cooling system, including the surge tank pressure cap, is hot. Wait for the cooling system and surge tank pressure cap to cool. If coolant is needed, add the proper mixture directly to the radiator, but be sure the cooling system is cool before this is done. 1. Remove the radiator pressure cap when the cooling system, including the radiator pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise until it first stops. Do not press down while turning the pressure cap. If a hiss is heard, wait for that to stop. A hiss means there is still some pressure left. 2. Keep turning the pressure cap, but now push down as you turn it. Remove the pressure cap.