Table 1 shows eleven common power train related problems of the 2015 Hyundai Sonata. The number one most common problem is related to the power train (104 problems). The second most common problem is related to the vehicle shudder (six problems).
While traveling on local roads and highways the vehicle transmission randomly down-shifts one or two gears. This has occurred when traveling in any gear from gears 3 through 6. It probably doesn't happen in 2nd gear because that is a transitory gear and not a cruising gear. Read details...
Was driving about 60 down paved road started hearing knocking noise under engine noise got louder when I tried to push gas because it fealt like I lost power and then suddenly car started vibrating and then turned off. And lost all power. Read details...
The vehicle has intermittently failed to engage in reverse. This is only remedied by shutting the car off and restarting it. There have also been intermittent incidents of severe hesitation when accelerating, surges in the tachometer at inappropriate times accompanied by the engine racing (with Read details...