99 Buick Century. Blinkers and emergency lights not working. No clicking noise when the blinkers are engaged. When right blinker is engaged and you depress the brake the right light in the dash lights up but won't do it on the left. I need help ASAP.

SOURCE: 98 Buick Lesabre Blinker Problem

After replacing turn signal fuse under dashboard @ steering column, get a buzzing sound from under the dashboard. It goes off when the right or left turn signal is engaged in the on position. How do we get rid of this buzz sound?

SOURCE: fast blinker and brake lights out

Sounds like the rear brake light bulbs are burnt out.
Try changing the left and right stop light bulbs.

SOURCE: 99 gmc denali dash light, parking lights, tail

You have a short to ground somewhere in the drl-fog lamp circuit. Check for obvious wiring connector or wiring to drl & fog lamps. check wiring for pinched or broken wires coming from sockets. If you don't find problem, you can trace wiring from lamps to main harnesses and hopefully find source of short.
hope this helps.

SOURCE: Blinkers don't work: When I use my blinkers to

The right blinker issue sounds like you have one bulb out either front or rear check them both. The left blinker issue sounds like either bulbs(both out) or fuse, or worst case blinker switch has gone bad on left turn only so not picking up the signal.

SOURCE: Ford f 350 powerstroke, blinkers or reverse lights

The blinkers have a relay under the dash on the driver side. It sounds like your relay isn't working. As far as the reverse lights, there is a switch inside the steering column. So when you put the truck in reverse, it closes the switch and turns on the reverse lights.