Two problems related to fog light switch have been reported for the 2005 Chevrolet Trailblazer. The most recently reported issues are listed below.
When leaving work at night on 8/21/18, started the car and the low beams came on, and then immediately went off. They would not come back on. Had to drive home using the fog lights and high beams. Have only had this car for a week. Doesn't seem safe. See that lots of Trailblazers have this issue. Looks like recall begins with the 2006 for this same issue.
Headlights went off and would not turn back on. (low beams only) fog lights, turn lights and high beams all work.