After owning my car for ~2 years, the first problem had come up. It has to do with the transmission (this brings back good old memory from my 7th gen V6). The symptom is heavy jolting at gear shift during acceleration.
I've made a video of it here:
Often times, the problem would go away if I restart the vehicle but would come back in a few days or so. I do long commutes to work everyday so I have plenty of opportunities to run experiments. I have tried various combination of ECO mode, sports mode, none seems to trigger it or remedy the problem while it was happening. It was not temperature dependent or did it have anything to do with driving style.
I eventually caught a break, with the problem going on and off for a few months, the car finally decided to throw a code. Unfortunately, I did not take a photo and it has been too long that I no longer remember what's exactly being thrown at the dash.
Nonetheless, the problem has to do with the 3rd gear pressure switch malfunctioning. I got it replaced under warranty and it turns out to be the root cause of the transmission slip/jolt.
