While driving the vehicle, I received a notice on the dash screen stating that the engine was overheated and to pull over as soon as possible. I followed the instructions (within 30 seconds) and shut the engine off but before I could exit the vehicle, there was a large amount smoke/steam coming from the engine area and it had also gotten into the inside of the vehicle. I began coughing and had a hard time catching my breath. I exited the vehicle. Once I was able, I raised the hood and found that the coolant reservoir was empty. I went up to the local parts store and purchased some coolant and once the engine had cooled off, I added it to the coolant tank. The temperature gauge returned to normal and I was able to drive it to my mechanic's shop. Upon inspection, it was found that the engine head was cracked and warped as well as the engine block. I will need to replace thye engine.