Thoughts on frustrating situation.

So what would be helpful advice be???? Pay the dealers bill, 3 weeks later pay another bill, try and see what DTC's were stored in the ECM.....who gives a **** and what would he do with that info as far as getting his car repaired for free???? NOTHING

Helpful advice would include legal ways to get the dealer he bought the car from to either fix it or take it back and refund his money. What he does from there is a whole different situation. But he has to solve the current issue first, which is that his son has a broken car which may very well be under warranty and is NOT covered by lemon laws.

So unless you have a legally supported way for the OP to get his car exchanged for a Toyota in Missouri, nothing you've said is relevant, helpful, or reasonable.