My 2007 has DRL and when you turn the turn signal on that side headlight goes out to make the turn signal more noticeable. I noticed it when my wife was following me in it. I thought I had a headlight out but then noticed that when ever the signal was on that headlight went out.
A forum community dedicated to Dodge Cummins Diesel truck owners and enthusiasts. Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!