Start by swapping out the transmission fluid. This probably won't fix the problem but will at least fix other issues with hard shifting. Next, there are cables running from the gear shift to the transmission. These cables need to be aligned properly for the transmission to move properly into the high gears and reverse. Take a look at post #22 at https://www.cruzetalk.com/forum/9-g...eco-manual-transmission-issue-question-3.html for more information.