Why wont my dodge durango start?

did you throw something out does the suspention look right is there any fluids dripping is there gas in the vehicle

Things have been acting up for awhile. One time the brake lights stayed on and made the battery go dead. The passenger windows work when they feel like it! The blinkers and radio stopped working but the next time i used the vehicle, they were working. My mechanic said he couldnt do anything if the stuff is working when i bring it in!

Does ur odometer say no bus when this happens if so it's ur pcm