There is a long bolt on top of the headlight/blinker assembly. Remove this bolt and slide the entire headlight/blinker assembly out just enough that you can see the bulb socket. Twist the socket and it will pop right out.
It would depend on what model of Buick you are referring to.
You can change the front wheel bearings on your 2000 Buick Regal without replacing the entire hub assembly. You can change each individual wheel bearing, if you choose.
The Question Is To Vague
I think the light assembly screws out from the inside of the trunk.
How do you replace the morror assembly for a 2001 Buick Regal
Blown bulb.
It means the bulb is out or something else is wrong.
will a ABS hub assembly fit on anon ABS assembly hub for 2005 buick lacrosse
From inside thr trunk remove two plastic covers that are for cargo nets. They screw off. The black plastic inside piece will now come off (width of trunk. You will see nuts on the studs that the black plastic covers were on these will release the light assembly which pulls out from the outside.
wheel bearings are going bad, need to change your hub assembly
pull the blinker lever towards you. and they will click off