2002 Pontiac Grand Prix Owner's Manual - Page 98

Engine Coolant Heater (Option) To Use the Engine Coolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. The cord is located below the engine air cleaner/filter near the coolant reservoir bottle. See "Engine Compartment Overview" in the Index for more information on location. 3. Plug it into a normal, grounded 110-volt AC outlet. CAUTION: Plugging the cord into an ungrounded outlet could cause an electrical shock. Also, the wrong kind of extension cord could overheat and cause a fire. You could be seriously injured. Plug the cord into a properly grounded three-prong 110-volt AC outlet. If the cord won't reach, use a heavy-duty three-prong extension cord rated for at least 15 amps. In very cold weather, 0_F (-18_C) or colder, the engine coolant heater can help. 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. At temperatures above 32_F (0_C), use of the coolant heater is not required. 2-38