Odometer light is dim. Fuse is ok. What is the problem?
So either the dash light dimmer is set too low or you may have some dash lights that are burned out.
I've got a similar problem , dash goes dim , shift indicator and radio , touched the dimmer switch on the light switch all worked , was going to replace that switch for 50 bucks but, read that it could be the day night sensor or resistors in the dash cluster electrical panel , this is a much cheaper fix but more labor , my Buick has 145,000 miles so I'm just going to replace , day night sensor & either re-solder or replace those resistors , search for this on the net & you will find videos on this fix
Looking for a Used Century in your area?
CarGurus has 859 nationwide Century listings starting at $2,300.
Search Buick Century Questions
Buick Century Experts