Well, about two days ago I had been driving my RX around and everything was fine. Then, I parked it and was at home for about 3 hours. I then got ready to go out again, and when I started my car, my coolant buzzer was going off. I thought maybe I had let the coolant slip below, even though I check it once a week. But I looked and the coolant was filled. I figured I just wouldn't drive it until I figured out exactly what the problem was. I went to try and start it the next day and it wouldn't even turn over. It sounds like it is trying to start, but it just won't go. Like maybe it is only firing on 1 of the rotors? If I put the key into the starting position the coolant buzzer is still going off. Any ideas? Coolant has been completely filled the entire time. So, I don't know what is making the coolant buzzer go off. Any ideas would be greatly appreciated. Thanks!

 

For the starting problems, check your compression to begin with.
For the coolant buzzer, if you are certain that there are no air bubbles in your system then check the level sensor on the top of the radiator. Those things are notorious for breaking but are cheap to replace.
-John

 

check your oil level too, I believe it uses the same buzzer