Why does my car rev up and not shift

Hello, your vehicle is equipped with a "CVT" - a continuously variable transmission. This means that there is no real "shifting" - but what I'm thinking you're saying is that you don't have transmission engagement. The number one cause that you can check for is a lack of proper fluid level in the transmission. If the transmission was recently serviced, it could also be that the wrong transmission fluid was used. Since you haven't shared any details like that, I'm left to guess wildly at possibilities. Perhaps share what has gone on with your vehicle lately, if there have been any accidents, physical damage, maintenance or repair services. Transmission don't typically just give up and fail on you without some kind of other influential moment.