CAUTION:
Make sure you disconnect the power cable from the engine heater connector before driving away.
Note: The engine heater connector is located in the radiator grille at the front of your vehicle.

Connect the engine heater for 2 to 3 hours before starting the engine.
Switching off the engineFord Focus Battery Disconnect
WARNING:
Batteries contain sulfuric acid and produce explosive gases. Work in a well-ventilated
area. Do not allow the battery to come in contact with flames, sparks or burning
substances. Avoid contact with skin, eyes or clothing. Shield eyes when working
near the battery to protect against ...