in a pinch, you can manually calibrate if you cant access dash. First, you needed to really center the steer wheel. With an ohmmeter, get pot centered as best you can. this gets you pretty close. With drive tires in air, run in forward then steer all the way left. Left wheel should stop or turn in reverse. Do right...if same you're good to go. If you are not centered, a hard turn may force the inside wheel to aggressively turn. This can blow a controller.
this adjustment depends on how EASY the steer pot is to access. Last Hyundai i did needed counter weight removed! I did adjustment manually as i could not access calibration settings