2007 Jeep Commander Owner Manual - Page 252

252 STARTING AND OPERATING NOTE: The starter motor may run up to 30 seconds in very cold conditions until the engine is started. The starter can be disengaged by turning the ignition key to the OFF position, if required. Extreme Cold Weather (below -20°F (-29°C) To insure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from your authorized dealer) is recommended. If Engine Fails to Start If the engine fails to start after you have followed the "Normal Starting" or "Extreme Cold Weather" procedures, it may be flooded. Push the accelerator pedal all the way to the floor and hold it there while cranking the engine. This should clear any excess fuel in case the engine is flooded. CAUTION! Ignition Key Positions To prevent damage to the starter, do not crank the engine for more than 15 seconds at a time. Wait 10 to 15 seconds before trying again.