2012 Cadillac Escalade Owner Manual - Page 28

9-4 Driving and Operating Using the Engine Coolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. The cord is secured to a wiring harness between the engine and the Hybrid Auxiliary Underhood Fuse Block with a clip. Carefully remove the wire tie which secures the electrical cord. Do not cut the electrical cord. 3. Plug the cord into a normal, grounded 110-volt AC outlet. Engine Coolant Heater The engine coolant heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles with an engine 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 −18°C (0°F). { WARNING 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.