1996 GMC Suburban Owner's Manual - Page 76

3. If your engine still won't start (or starts but then stops), wait 15 seconds and start over. When the engine starts, let go of the key and the acce.leratorpedal. Engine Coolant Heater (Option) In very cold weather, 0°F (-18°C) or colder, the engine coolant heater can help. NOTICE: Your engine is designed to work with the electronics in your vehicle. If you add electrical parts or accessories, you couldchange theway the engine operates. Before adding electrical equipment, check with your dealer. If you don't, your engine might not perform properly. If you ever have to have your vehicle towed, see tells how to do it the partof this manual that without damaging your vehicle. See "Towing Your Vehicle" in the Index. You'll get easier starting and better fuel economy during engine warm-up. Usually, the coolant heater should be plugged in a minimum of four hours prior to starting your vehicle. 2-12