I just recently bought a 1999 zx2 the "hot model with the DOHC. I noticed that they coolant is low whch leads me to believe that the guy didn't take very good care of the cooling sytem. I was thinking I should flush the coolant system and put new coolant in. I was also thinking as long as I'm doing it I might as wll change the thermostat. Can anyone tell me the procedure for flushing the coolant system and any ideas as to whether I should change the thermostat and that procedure as well. Also, the car syas on the original window sticker that the car came with keyless entry but the guy I bought it from had no idea that it had it and I did not receive any remotes with the car. Any idea how I find out if it has it or not?

Thanks