2005 Chevrolet Silverado 3500 Pickup Owner's Manual - Page 431

Notice: If your engine catches fire because you keep driving with no coolant, your vehicle can be badly damaged. The costly repairs would not be covered by your warranty. See Overheated Engine Protection Operating Mode (V8 Engines Only) on page 5-40 for information on driving to a safe place in an emergency. 3. If you are in a traffic jam, shift to NEUTRAL (N); otherwise, shift to the highest gear while driving - DRIVE (D) or THIRD (3). If you no longer have the overheat warning, you can drive. Just to be safe, drive slower for about 10 minutes. If the warning does not come back on, you can drive normally. If the warning continues, pull over, stop, and park your vehicle right away. If there is still no sign of steam and your vehicle is equipped with an engine-driven cooling fan, push down the accelerator until the engine speed is about twice as fast as normal idle speed for at least three minutes while you are parked. If there is still no sign of steam and your vehicle is equipped with an electric engine cooling fan, idle the engine for three minutes while you are parked. If you still have the warning, turn off the engine and get everyone out of the vehicle until it cools down. Also, see "Overheated Engine Protection Operating Mode" later in this section. You may decide not to lift the hood but to get service help right away. If No Steam Is Coming From Your Engine An overheat warning, along with a low coolant condition, can indicate a serious problem. If you get an engine overheat warning but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you: Climb a long hill on a hot day. Stop after high-speed driving. Idle for long periods in traffic. Tow a trailer. See Towing a Trailer on page 4-69. If you get the overheat warning with no sign of steam, try this for a minute or so: 1. If your air conditioner is on, turn it off. 2. Turn on your heater to full hot at the highest fan speed and open the windows as necessary. 5-39