Just put in a new radiator and thermostat as well as radiator hoses. Do I need to bleed air from the system? Car is a 2001 Elantra with AT.

To get air out, after you fill the radiator (and the overflow reservoir), leave the cap off the radiator and squeeze the upper radiator hose a few times. You should see a little air bubble out of the cap (and the coolant level will go down to take its place). Do this for awhile, then top off the radiator again. Run the engine for awhile (up to normal operating temp) with the heat control all the way to hot and the fan control on full blast. Then check the level in the overflow and fill as needed. You'll want to check the overflow level for your first few trips.

Tahnks, that is the way I normally do the bleed. I have a 3 series BMW and it has a bleeder screw on the thrermostat housing to accomplish coolant bleeding, wanted to make sure Hyundai did not have similar set up.