2014 Chevrolet Express 3500 Cargo Owner Manual - Page 209

Driving and Operating . 9-19 Selecting the cruise control on/ off button when it was previously on. Pressing the cruise control SETbutton a second time. Pressing the accelerator more than one-quarter of the way down. Turning the ignition switch to the LOCK/OFF position. which will prevent engine coolant heater operation at temperatures above −18°C (0°F). Warning (Continued) 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. The length of time the heater should remain plugged in depends on several factors. Ask a dealer in the area where you will be parking the vehicle for the best advice on this. . . 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. . Engine Heater If the vehicle has a diesel engine, see the Duramax diesel supplement 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 −18°C (0°F). 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 { 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 (Continued)