2020 Hyundai Ionic Blue Hybrid

I'm selling my 2020 Hyundai ionic hybrid they give 50mpg. Clean title current registration 2026 super cold ac back up camera car play stereo . Good motor around 155,000 miles only when car is cold start reverse won't work and transmissions will jerk a little after running for 10-15 min car will run like new I was told to check transmission oil but have no idea how to check it need special pump or something might just need transmission fluid wors case new transmission which I found for $500 and $50 the tire cap . I just bought hybrid accord instead my loss your gain I'm asking $3900 feel free to bring own mechanic or scanner no problem . Tambien español