yeah it's gonna be hard shifting from park with any automatic on a incline. It will shift from park but not really easy like. Use the E brake before going to park will prevent this from happeneing in the near furure. Also when you do get it into reverse lightly give it gas before letting your foot off the brake cause the atx is prone to rolling forward in reverse and backwards in drive or in 1st-2nd onslightly steep to steep inclines. Kep us posted and if you can't get it into reverse call the rental agency. If for some odd reason they can't help then 1-800-866-1998. Call the rental agency 1st before attempting the # I gave you.