Battery Propulsion System problems of the 2009 Honda Civic Hybrid

Ima battery is defective, wears out earlier than designed, causes dangerously slow episodes of being able to accelerate from a stand still and accelerate to merge with highway speed traffic. Gets horrible fuel mileage, no where as advertised, especially in very hot weather. */01/2012 updated bf the consumer stated the ima battery light illuminated. The dealer suggested a software upgrade update. When the consumer turned the vehicle off, and back on again, the light did not illuminate. Updated 03/16/12.