1990 chevy suburban tail light?

[Zac]

i have a 1990 chevy suburban in mint condition. for the tail light it has 3 lights one for reverse one on the side and one for turn signals,brakes and parking but it will only light up for parking any one know why

[preddysgarage]

those tail light assemblys are known bad, if u find the ground is good and bulbs are good go to advance or autozone go to the help section u can pick up a set 1 for each side for 30$ both