Before you head out on the big, fun trip of the summer, make sure to have your vehicle inspected prior to the big trip. The National Traffic Highway Safety Administration (NTHSA), recommends inspecting several components for summer driving. One of them is the lights on the vehicle. It’s easy to see when a headlight is out, but can you see when one of your tail lights are out?
See and be Seen! So, before you head out, check the headlights, tail lights, turn signals, hazard lights, interior lights, and, if towing, trailer lights.
Denny, TIA Certified Instructor
Source, NHTSA http://www.safercar.gov/summerdrivingtips