On some cars the bulbs screw in from the rear and you have to take the light assy off to get to it.
The 1991 Pontiac turn signal flasher relay switch can be found beneath the drivers side dashboard. The turn signal flasher relay switch will be above the gas pedal.
It will be under the dash on the driver side. It is clipped in just to the right of the steering column.
you need to change the flasher can for the signal lights
HOW DO YOU GET THE LEFT TURN SIGNAL BULB OUT ON A 2000 PONTAIC FIREBIRD
To replace a turn signal switch on a 2003 Pontiac Aztek, also known as a flash relay, the steering column must be removed. The flash relay is located under the turn signal. Remove the mounting hardware and the unit can be taken off.
on the right hand side of the steering column by the column support bracket. It is tucked in behind and you need to feel for the round device.
Look on or around the fuse panel under the dash on the drivers side! It is round!
Either the flasher or the turn signal switch is bad.
Under the dash...driver side. It will be to the right of the steering column. Should be held in with a clip.
open the hood, grab ahold of the black pod which is on the signal light , turn and pull out. light just pulls out of socket , replace by pushing in new bulb then put back in slot of signal light holder and twist to tighten again,,,,,,done deal
Remove the panel under steering wheel. There will be 2 flashers. Replace one on right.
pull the lining of the trunk away from the back of the trunk