you have a switch on the brake pedal that activates the lights its hard to see as most are mounted high up the pedal shaft. Check to see if its loose or the connector has become unplugged.
To send a signal to the driver behind you.
Signal to driver’s behind
most likely a bulb b/c if it was the fuse your other brake and signal light wouldn't work... most vehicles the brake and signal light are all in one bulb... try replacing the light bulb
Either under the dashboard on the driver's side or in the engine compartment.
Under the dash, driver seat side of the parking brake.
On driver side under dash, just straight up the emergency brake in a block box
Front seating area, driver side, under dash, mounted on top of brake pedal.
The turn signal flasher on a 1998 Mirage is on the driver's side under the dash. It should be above and just to the left of the brake pedal.
The turn signal flasher on a 1988 Cadillac is located under the dash on the driver's side of the vehicle. It is just above the brake pedal.
The tun signal flasher on a 1998 Chevy Tracker is located in the dash on the driver's side. It is to the left above the brake pedal.
Front seating area, driver side, behind dash, driver side of steering column, mounted above fuse panel.
Front seating area, driver side, under dash, mounted on top of brake pedal.