My pronto m51 sure step service light is flashing seven time and it will only turn to the right

9 flash service what?

Sarah check the joystick cable try unplugging it from the rear of the joystick and plugging it back in then unplug it at the back of the chair and plug it back then turn the chair on to see if you are still getting 7 flashes. If you are then you have one of 2 problems the joystick cable somehow is bad or the joystick itself has got a problem try the cables first to see if it fixes the problem If Medicare paid for the chair then they will pay for most of the repair Contact Roadrunner Mobility @ 1-800-467-2668 Hope this helps you