 Our passenger airbag remains off frequently when there is a full size adult passenger in the front seat with their seat belt fastened and the seat properly adjusted (warning light on dash indicates airbag is off).  We have provided video evidence of the problem, but since the dealer's test equipment finds no fault, they refuse to replace any parts or make further adjustments.  The manufacturer sent a technical expert to examine the car, and he agreed with the dealer that without a computer stored fault no action would be taken.  After viewing the several videos, their position remains unchanged.   We have owned BMW, Porsche, Mercedes, Toyota, Chevrolet and Cadilac cars in the recent past, and in all cases have been pleased with warranty support.  This is our first and last Infiniti.  Also our last purchase from The Porter Group in Newark, DE.