Brake lights not working
check your fuse box
Besides that could it be the brake light switch?
Yes could be the brake light switch, or the bulbs are burnt out. Having a test light to see if there is power for the brake lights back at the bulb sockets is handy to have for testing.
Looking for a Used LeSabre in your area?
CarGurus has 8 nationwide LeSabre listings starting at $3,795.
Search Buick LeSabre Questions
Buick LeSabre Experts
Related Models For Sale