I have a Caliber with error codes P0700 and P0730. The transmission is not whining or grinding but the wife says it feels like it is slipping when accelerating ~40 mph going up to 55 mph and going up a slight grade. The car only has 59k. I took the car to a tramission shop today it drove ok to me and they are supposed to give me a diagnoises tomorrow. Is there anything I can check or should have them check?

 

I would start by having the dealer check the fluid level. It has to be done with a Starscan tool from what I have read. It takes a special fluid for the CVT2 transmission.
That is a code for slipping. Not very common on these cars.