Newmar Corporation (Newmar) recalling certain model year 2014-2015 Essex, and 2015 Mountain Aire and London Aire motorhomes manufactured from May 20, 2013, through April 09, 2015. These vehicles are built on Freightliner rear engine chassis that have 18,000lb or 20,000lb-capacity front axles. In these motorhomes, the power steering fluid temperature may exceed the power steering hose material rating, subsequently causing the hoses to fail, resulting in a sudden loss of power steering.