Truck has auto start/stop for fuel efficiency. It automatically engages on startup. Truck is prone to sudden unexpected acceleration when it is engaged. Has almost caused 3 wrecks with my truck. Dealership says they know about the problem and that I should just turn it off everytime I get in the truck. This will kill somebody some day. I forgot to turn it off today and it almost caused me to rear-end another vehicle while at a stoplight.