Turn Signal Light Slow Flashing

Check the alternator output, and electrical grounds. Seems when there is a significant electrical drain, (headlights or AC on) is when the issue crops up. Remove and clean all contacts. From the battery clamps, the wires in the clamps if those are not molded to the wire, on down the line. Remove and clean the grounding straps by the firewall, all the way to the trunk of the car.
Report back to us.