What should the tire pressure be on a 2009 Hyundai Elantra?

Answer 1

It should tell you on the tire. Its not specific for the car. I have lo pro tires and after market rims on mine and the tire pressure is supposed to be 5000 pounds. But then again Im too lazy to stop and put air in my tires all the time so my tire light is always on.

That answer is entirely wrong. The number on the tire is exactly what it says "maximum" PSI. Every vehicle has a manufacturer recommended tire pressure and that is what should be used. My 2005 Elantra has it printed in the owner's manual (30 PSI front & back & 50 for spare tire). OEM tires said 42 max. so it's quite different. As long as you replace the tires with the same size (not necessarily same kind) it will be the same. It is normally in the manual or inside the door jam or inside the glove compartment.