2009 GMC Savana Van Owner's Manual - Page 106

When the fast idle is active the Driver Information Center (DIC) will display "FAST IDLE ON." One of the following actions will turn off the fast idle: To Use the Engine Coolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. The cord for the engine coolant heater is located on the driver side of the engine compartment and is attached to the hose for the power steering reservoir. 3. Plug it into a normal, grounded 110-volt AC outlet. Pressing the brake. Selecting the Cancel button. Releasing the Parking Brake. The transmission shifter is moved out of P (Park) or N (Neutral). was previously on. • Selecting the cruise control on/off button when it { 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 will not reach, use a heavy-duty three-prong extension cord rated for at least 15 amps. 4. Before starting the engine, be sure to unplug and store the cord as it was before to keep it away from moving engine parts and prevent damage. Engine Coolant Heater If the vehicle has the DURAMAX Diesel engine, see the DURAMAX Diesel manual for more information. The engine coolant heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below 0°F (−18°C). Vehicles with an engine coolant heater should be plugged in at least four hours before starting. An internal thermostat in the plug-end of the cord may exist which will prevent engine coolant heater operation at temperatures above 0°F (−18°C). 2-22