2011 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 433

Vehicle Care If Steam is Coming from the Engine Compartment . 10-27 Idles for long periods in traffic Tows a trailer; see Trailer Towing on page 9‑89. WARNING (Continued) See Overheated Engine Protection Operating Mode on page 10‑28 for information on driving to a safe place in an emergency. . { WARNING Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Turn it off and get everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood. If you keep driving when the vehicles engine is overheated, the liquids in it can catch fire. You or others could be badly burned. Stop the engine if it overheats, and get out of the vehicle until the engine is cool. (Continued) If the ENGINE OVERHEATED STOP ENGINE or the ENGINE OVERHEATED IDLE ENGINE message appears with no sign of steam, try this for a minute or so: 1. Turn the air conditioning off. 2. Turn the heater on to the highest temperature and to the highest fan speed. Open the windows as necessary. 3. If stopped in a traffic jam, apply the brake, shift to N (Neutral); otherwise, shift to the highest gear while driving - D (Drive) or 3 (Third). If the temperature overheat gauge is no longer in the overheat zone or an overheat warning no longer displays, the vehicle can be driven. If No Steam is Coming from the Engine Compartment The ENGINE OVERHEATED STOP ENGINE or the ENGINE OVERHEATED IDLE ENGINE message, along with a low coolant condition, can indicate a serious problem. If there is an engine overheat warning, but no steam is seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle: . . Climbs a long hill on a hot day Stops after high-speed driving