I bought a new 08 tsx about two weeks ago, 5 miles into the trip home the TPMS system function error occurred. So i took it to the dealership today. and they "fixed" it. However when i drove the car tonight, the same TPMS system function error happened. How can i reset or fix this problem.....so annoying....

 

I'd say take it back to the dealership. But when you do, ask LOTS of questions. Make sure they're actually looking into the root cause of the problem, not just resetting the light in the hopes that you'll leave them alone. And be sure to get an explanation of what they think the underlying problem is and what their solution is. The TPMS isn't just some gadget, it's an integral part of the VCS system.