I'm not really surprised Toyota is mentioned as being involved in half the cases. Because they sell large numbers of hybrids and those have a much higher risk.

I'm not really surprised Toyota is mentioned as being involved in half the cases. Because they sell large numbers of hybrids and those have a much higher risk. The car can be "on" without the combustion engine running, so there is no sound to alert the driver that the car is still on. Then over time when the battery charge decreases the car will automatically start the engine to recharge.