I got a 18 GT MT82, I had my shop install a steeda clutch spring, steeda short throw shifter, aluminum driveshaft, 4.09 gears, all the steeda irs stability parts, front and rear sway bars. Now I have a wrench light and the screen reads hill assist start unavailable. Put a computer on it and got 2 codes: U0401 ABS module reaction and P0704 clutch switch input circuit. Should I take it to the dealership try to get it done under warranty? Which one of my installs you think got this going? Car only has 800 miles on it.
