Dood, this car sounds like a major lemon, and you have been more than patient.
It is time to get medieval on their buttocks.
You wrote that the light first came on 2 weeks after buying the car. They "fixed" it, and it came back in two weeks later. Taken it back 5 times since then.
Sounds to me like you don't have to worry about the lemon law expiring. If you brought them the problem during the first 30 days, and it is pretty much the exact same problem that keeps coming back, you should be okay......or close enough to make them not want to spend money to argue the point.
You sound like a nice guy. Being tough may go against your character. You'll have to suck it up.
Just because you're normally a level headed guy doesn't mean you can't pretend to be insane. Your next call to the dealer should make you sound like Charlie Manson.
Demand that they take the car back. Tell them enough is enough. You've been ripped off. No, they don't get another chance to fix it. You want your money back. In fact, tell them you are coming over right now to drop the car off. Please have a check ready. Then go.
If they still stonewall you, tell them that the next time they hear from you will be through your attorney. He is just waiting to hear back from you as to whether the dealership will make good. Would they rather deal with you or him?
Let's face it, do you really care if you hurt their feelings at this point? Do you plan to ever buy anything from them ever again? Get mean. It might just be fun.
