I am having some electrical issues on my 08 hatchback and I am unsure if they are related. They are as follows:

#1 When I press the brake the passenger side brake light dims and the turn signal light burns dimly. I have checked all bulbs and they are good and secure.

#2 Dome light has quit working. Bulb appears to be good.

#3 The seatbelt light on the dashboard flashes and appears to have a short. It will dim repeatedly.

Any help or advice anybody can give me would be greatly appreciated.