general problems of the 2009 Mazda MAZDA6

The driver's side low beam headlight wiring harness melts and seems to be continuing problem. Even after replacing stock, (which melted,) with a better wiring harness it still began to melt and loose circuit, but like I said it was doing this before ever being replaced. Happens every couple months are so depending on amount of night driving. I have read several complaints about this happening to several owners of the same vehicle on the same drivers side with the same original harness and replacements doing this same melting and frequent on/off short circuit malfunctioning. Possibly causing a fire or fried wiring or loss of headlight causing unsafe conditions.

The door lock actuators go bad on this car which causes the car to believe one of the doors is open when it is not. The dome lights are driven by the door actuators sensing that a door is open, so when you are driving, the interior lights will flash on and off. Very distracting, especially at night. The lights turning on and off only happens when the car is being driven, I have not noticed it when stationary. Usually it occurs during turns and the lights stay on for a few seconds. The door actuators are a common problem on this car and has many complaints about this issue online. This has been going on for several months now. The door actuator being faulty also causes the security alarm to go off and start sounding the car's horn sporadically. The car will be parked in a driveway with nobody around through all hours of the day and it will go off. Although not a safety concern like the problem with the lights, it is still symptomatic of the malfunctioning door actuators.