I have a Honda Grace 2015. Suddenly, I noticed an issue. When I try to move forward, after stopping it on a small hilly area, the car moves backwards. This happens till I get enough acceleration for pick up. So, now I have to hold the hand brake and accelerate so that it won't move backwards. This is very embarrassing.
Is it time to change gear oil? It has run for 30000 km.
Your experience will be helpful.