2012 Ford F350 Super Duty Owner Guide 4th Printing - Page 265

Driving STARTING Positions of the ignition 1. Off- shuts off the engine and all accessories/locks the steering wheel and allows key removal. Note: In order to switch off the engine while the vehicle is in motion, shift to neutral and use the brakes to bring the vehicle to a safe stop. After the vehicle has stopped, turn the engine off and shift into park. Then, turn the key to the accessory or off position. 2. Accessory- allows the electrical accessories such as the radio to operate while the engine is not running. This position also unlocks the steering wheel. 3. On- all electrical circuits operational. Warning lights illuminated. Key position when driving. 4. Start- cranks the engine. Release the key as soon as the engine begins cranking. Note: Do not store the key in the ignition after the vehicle is turned off and you have left the vehicle. This could cause a drain on the battery. Preparing to start your vehicle Engine starting is controlled by the powertrain control system. The powertrain control system meets all Canadian interference-causing equipment standard requirements regulating the impulse electrical field strength of radio noise. When starting a fuel-injected engine, don't press the accelerator before or during starting. Only use the accelerator when you have difficulty starting the engine. For more information on starting the vehicle, refer to Starting the engine in this chapter. WARNING: Extended idling at high engine speeds can produce very high temperatures in the engine and exhaust system, creating the risk of fire or other damage. 265 2012 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)