The ask the Motor Medics short form show is a three minute call taken from the Under The Hood radio show. Listen to our full show on iTunes search Under The Hood Automotive Advice Show. On this episode Marshall has a 2001 Chevy Silverado with a security light on all the time. The Motor Medics give their opinion of a few possibilities. Join them for their full shows of Under The Hood on your favorite podcast site. Search Under The Hood automotive advice show.