Check the bulbs Check the stop light switch
left on brake bleed valves
On a 1994 Buick LaSabre why does the engine continue to rev up while driving even when the brake is applied ? or when driving why doesn't the engine return to idle when the brake is applied? I would check for a vacuum leak
Two mounting bolts at rear of caliper - then slide caliper off rotor
I have 05 with no brake lights
That sounds like a wheel cylinder leaking brake fluid.
Have you checked the fuses?
Bad fuse or bad brake light switch.
Check the bulbs, if o/k check the wiring to it
fluid leak, empty fluid, bad master cylinder. nothing else.
Try chamging the bulb, and if that doesnt solve your problem, check all the wiring.
Sounds like it's not your bulb that is bad. It may be your brake switch isn't working.
more than likely its your brake switch on the brake pedal. pull up on the brake pedal and see if it goes off. if it does you need a new brake switch if it doesnt you might be able to adjust it. if adjusting it doesnt do it your still going to need to replace the brake switch.