How do you change the blinker light in a 1995 Olds Cutlass when the light is on but just not blinking?

With the key in the "on" position, turn the signal switch to the turning direction that is ***not***the problem. Check the front and rear of the car so you know which lights are flashing. Now switch the turn signal switch to the bad side and compare the lights that are illuminated (but not flashing) to the side that was working. One or more of the bulbs are out and will not be illuminated. Change that bulb (s).