The heater i cant figure out how to turn on the heater in my chrysler sebring lxi. i turn thr thermostat to hot and turn it on and it just blows cold. it is a fairly easy heating and cooling system,but their is not a special heater button and im not sure if i just dont have it on the right setting or if their is a problem under the hood.

If the heater hoses are hot, the usual problem is a blend door under the dash.

You have to bleed airfrom the system.take to the shop

Look for a leaky duct blowing hot air (or worse, damp air) on the body computer module under the dashboard.

Sounds like maybe a stuck thermostat. or a blocked heater core. Just cause the system was flushed dosent mean the heater core was cleaned out.

so what happens when you turn on the lights? what doesnt work? blower stops? blows, but not hot?

I would and sometimes you have to hold the recharge hose down on the fitting with some pressure to get it to take the R134.

I would expect this is more to do with a low coolant level than an electrical issue. If your coolant is low when you turn off the headlights your engine revs will increase slightly increasing the pressure in your coolant system and pushing fluid into your heater core.
Check your coolant reservior when your car is cold (first thing in the morning), it should be at max cold. If it is lower than this you may not have warm coolant in your heater core.
If this is the case...then where did your coolant go?
Most likely the thermostat/temp housing is leaking...replaced both on my two 2001 sebrings...common issue..~$150 for parts and a little awkward to install but fairly easy fix.

I would have the heater core checked. It could be something as simple as a fuse but unlikely. not likely to be the thermostat as that would make the car overheat if it wasnt working.

I would suggest to check the evaporator, normally found underneath the glove compartment. Check out the coils and the fan. While you are at it you can do some cleaning and see if it helps.

bad thermostat