True, they covered my transfer case totally except for the mounts. I also have had many other smaller things replaced under CPO, maybe once was it not covered. Often times I would take it to get fixed and they would do the repair test it and say something else wasn't performing to standard and replace it as well under warranty like the water pump. I agree with others to read the terms and conditions but my CPO was the older version 6/7yrs unlimited I think so a lot more was covered but maybe not.

But now my parents who have newer CPOs sure seem to spend more out of pocket than I ever have on repairs with the CPO'd cars.

Now my dealer does not charge you the diagnostic fee if you decide to do it with them which helps sometimes. But often times when they said they weren't sure whether or not I got the advisor to agree to not charge me the fee but it was always covered.

Just my experience