On Sunday afternoon, my family went dinner with this vehicle. On the way back home driving this vehicle, it happened. There were any warning sign on the cluster the car slowly stopped on the road. We all shocked as if we would get an accident on the road by another running car. 2 kids were sleeping and my wife and me stuck on the middle of the road. All I can do was turned on the emergency lamp button and try to pull over the vehicle to side of the road which was not easy and dangerous. Because the vehicle didn't react to the acceleration of the acceleration pedal by my foot. After several attempts, It barely move(2~3mph) to the side of the main road.

I thought it might be related AC problem so I turn the ac off first but noting different. I tried to drive with manual gear operation (set the shift gear stick to manual instead of D-automatic drive position) but same thing happened. I got out from the vehicle and I was thinking about calling my insurance company to tow this vehicle. I decided to try one more time before calling insurance. That's when the vehicle get back to normal again. It took about 15~20 minutes to becomes normal. And I drove to home. I'm confused what I should do with this vehicle/problem.