Tire Pressure Monitoring System problems of the 2008 Mitsubishi Lancer

I have a complaint about the Mitsubishi motors I bought my car two years ago in 2007 and the car is a 2008 Mitsubishi lance and right now the car saying there is something wrong with the tire pressure system. The car consumes alot of gas for example yesterday I put ten dollars in the afternoon and in the night I didn't have any gas. The dealer was very rude because its not the first time this incident has happened. Last year the tire pressure monitoring had a defect and they fixed it because I called my bank and told them don't send the car payment through. And they will give a number to contact some principal mitsibishi where they are very rude to me because I have a heavy accent and can't speak english very well. If I get the care fixed it will cost me like 350-400 to fix it thanks thanks a lot.