Both bottom brake light are out. 3rd brake light and all other rear lights work.

I did, just didn't mention it sorry. What next

If it has the CORRECT bulbs and fuses in it (fuse with correct amperage, bulbs w/correct wattage), then it's probably time to take it somewhere for someone to look at it. There may be a wiring or other issue, so you'll need circuit diagrams and you'll need to test powers and grounds.

Argh... That what i feared. I was hoping that there was a common issue / fix for that. I've found this problem on other cars and the common issues for the same symptoms is multi function switch or hazards switch, but thats on other cars. Thanks for the help though, I'll start testing and go from there.