Check fuse for parking/tailights Could be a bad headlight switch Could be an open in the dimmer rheostat
sounds like you need a new dimmer switch, or there is a loose wire
It was the dimmer switch..
Replace ignition switch for 1993 buick century?
The solution is easy. There is a little button that you press on the body of the switch that releases the 'shaft and knob'. A little jiggling is required sometimes.
how to replace window toggle switch 1999 buick century
Removing the dimmer switch starts at the steering column. To plan this task out, access the steering column by removing the screws holding the steering column shroud in place. This will expose the turn signal lever. Remove the lever by twisting it forward, and pulling it out of the switch.
Check the dimmer switch
open the hood and pull out the bulb
To replace the lights in your car you need to unscrew the headlight cover on your Buick. Once this is removed you can unscrew and replace the old bulb.
You will need to replace the turn signal/ dimmer switch as an assembly.Thru a dealer the parts are over $300.00. I buy salvage yard units for $75.00. You will need to disable the air bag, drop the column, pull the wheel. I suggest you obtain a HAYNES repair manual or a similar repair manual to properly disable the air bag. I hope this helps you. Mark
The headlight switch and or the headlight switch electrical plug may be bad. Inspect the switch/plug and you may find the plug melted.