They do not.
Faulty hazard switch.
There are two relays, one for the emergency flashers, and one for the turn signals. Your turn signal flasher is defective and needs replacing.
it is behind the glove box.
Yes I believe that Chevy Impalas are grandma cars!
Oshawa, Ontario
176,376
engine
depends, most do
All SS Chevy Impalas' had the LT1.
The flasher is mounted just to the left of the steering column. The turn signal and emergency flashers are built together on this model.
The signal and emergency flashers are located behind the lower dash panel aprox in the center. You need to remove several small screws to drop this plastic panel. Once it is off the flashers are visable.
I would check the switch inside the steering column.