Since I have owned my car I have had a bulb out indicator on the dash for both the left and right side directional signals. Are the side front and rear marker lights suppose to flash with the directionals?
Only the turn signals flash, the side marker lights that are on the bumpers (if that's what you're referring to) do not flash with the turn signals. Are you certain both left and right, front and rear turn signals are working correctly? Flip your hazard lights switch on and take a look.