Welcome to the forum. How many miles do you have on your car and what kind of 2014 Cruze, Front/Rear. Fronts I would look at @35K. You may need to adjust the rear drums. Front is disc and the rear depending on model is drum. Regardless the fronts are easy. There are several how to posts about how to do the front. If you have anything other than a LTZ, chances are you have drum on the back and probably need to be adjusted. Check the first few how tos in here:http://www.cruzetalk.com/forum/153-gen1-brakes-suspension-tutorials/.
That will depend on the type of driving you do (hwy vs city). Hwy they may last that long city you have lots of stop and go which will wear them quicker but the ceramic pads put on the Cruze will last a good long time. I only had to change mine at 38K bc my front calipers were seized and it was like I was driving with my brakes on always. If not I probably could have left them go to @50K esp since I do lots of stop and go. If I were you, I would check @40K miles not KMThey'll really last that long? Wow that's impressive.