2021 Jeep Grand Cherokee - Owner's Manual (412 pages)
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If the engine fails to start after you have followed the "Normal Starting" or "Extreme Cold Weather" procedure it may be flooded. Push the accelerator pedal all the way to the floor and hold it there. Crank the engine for no more than 15 seconds.
This should clear any excess fuel in case the engine is flooded. Leave the ignition key in the RUN position, release the accelerator pedal and repeat the “Normal Starting” procedure. The engine block heater warms the engine, and permits quicker starts in cold weather.
Connect the cord to a standard 110-115 Volt AC electrical outlet with a grounded, three-wire extension cord. The engine block heater must be plugged in at least one hour to have an adequate warming effect on the engine.
If the engine fails to start after you have followed the "Normal Starting" or "Extreme Cold Weather" procedure it may be flooded. Push the accelerator pedal all the way to the floor and hold it there. Crank the engine for no more than 15 seconds.
This should clear any excess fuel in case the engine is flooded. Leave the ignition key in the RUN position, release the accelerator pedal and repeat the “Normal Starting” procedure. The engine block heater warms the engine, and permits quicker starts in cold weather.
Connect the cord to a standard 110-115 Volt AC electrical outlet with a grounded, three-wire extension cord. The engine block heater must be plugged in at least one hour to have an adequate warming effect on the engine.
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