sometimes when i'm backing out my car it will pop out of reverse gear and make the grinding noise. the gear seems to be fully engage and it does that once in a while.. and sometimes unable to shift into reverse.. is that something normal? or should i be taking it back to dealership? there's only 6000km on it so far. only issue going to dealership is they'll probably not be able to replicate the issue and say something like you probably don't know how to drive manual lol.