Engine Coolant HeaterYour vehicle may have an engine coolant heater.In very cold weather, 0°F (−18°C) or colder,the engine coolant heater can help. You will geteasier starting and better fuel economy duringengine warm-up.Usually, the coolant heater should be plugged in aminimum of four hours prior to starting yourvehicle. At temperatures above 32°F (0°C), use ofthe coolant heater is not required. Your vehiclemay also have an internal thermostat in theplug end of the cord. This will prevent operation ofthe engine coolant heater when the temperatureis at or above 0°F (−18°C) as noted on the cord.To Use the Engine Coolant Heater1. Turn off the engine.2. Open the hood and unwrap the electricalcord. For the 2.8L V6 and the 3.6L V6engines, the cord is located in the enginecompartment on the passenger’s side of thevehicle in front of the fuse block. For the6.0L V8 engine, the cord is located inthe engine compartment on the driver’s sideof the vehicle near the inner fender and abovethe strut.Remove the plastic cap to access the plug.3. Plug it into a normal, grounded 110-volt ACoutlet.116
