You may just have low brake fluid in the brake fluid reservoir causing these warning lights to come the dash of your Saturn. If the fluid is low, this will cause the red brake light to come on and also the traction/stability lights. It can also cause an ABS light.
If you are referring to the ABS brake light on, then you could have a bad front wheel speed sensor or wiring problem that only gets affected on left turns. If this is the case, a scan of the antilock computer is needed.