My best suggestion to you is to read the owners manual, there is a whole section on how to do that, step by step. That is where i have learned alot about the 1999 Century I own, and how to fix any problems.
how to replace window toggle switch 1999 buick century
1999 Buick Century Turn Signal Bulb Numbers can be looked up with the link below in Sources and Related Links.
Remove the air bag fuse and disconnect the yellow cable at the base of the steering column.
Where are the relay switches on a 1999 Buick Century for the headlights
how do I remove the sunvisors off a 1999 Buick Century
you can find it down the dasshb next to the gas pedal. Good Luck simplementegrandioso
Replace the light bulb, if you've already tried that, then the switch is bad.
how much would it cost to replace the heater coil on a 1999 buick leSabre
Replace control unit located under dash usually in the middle section
Try it, if it doesn't work then all you have to do is go to Walmart and get an adapter for it.
99 ?
5