Check tire pressure light stays on after starting vehicle

Check the tire pressure yourself, there should be a specification on a placard in the glove box or on the door jamb. It certainly would be in the owner's manual. there may be some useful information on the tire pressure monitoring system there too. If you can't figure it out, find a Hyundai specialist to sort it out for you. Here's a directory link for you: http://repairpal.com/hyundai-repair-in-buffalo-new-york