Tail Light Switch problems of the 2006 Kia Motor Sedona

The turn signals work intermittently and probably only work 15% of the time, however beginning about 2 years ago the bulbs have never both worked at the same time (meaning when you turn the switch to the left the left signal will turn on but when you then turn the switch to the right it does not work). The bulbs have been changed several times yet this never fixes the problem. The turn signal bulbs have actually only been burned out one time, proving there is some form of a short. All of the other lamps, whether it be head lamps (low or high beam), fog lights, tail lights, running lights, reverse light or tag lights, keep burning out bulbs. Every 6 weeks I'm having to replace a bulb. This is so dangerous not to mention expensive! with as many complaints as there has been posted due to this very same issue, I do not understand why kia has not found/created a solution for these issues. This really makes me not want to purchase another kia vehicle. Also, I've had intermittent problems with one of the electric sliding side doors. One door will not close on it's own. If you pull gently to get it started closing, it will then close the rest of the way by itself. There's nothing internally blocking the release pin from disengaging. This problem just started about 2 months ago.