I just got my 2015 QX60 Hybrid two days ago. I've noticed that it seriously lacks any kind of power in reverse. I had to back up my street (slight incline) and into my driveway, and it seemed like the transmission wasn't even engaging, at first, or it took a while to decide between electric or gas power. I've had several vehicles over the past 30 years (but this is my first hybrid) and have never experienced this. Is this normal for a hybrid?