So I pull into a convenient store or something like that and the wife and kids are in the car. I am only going to be gone a sec. so I don't want the engine to shut off. As soon as I open my driver's side door though it cuts off. But sometimes it doesn't. I have not been able to figure out what prompts the engine to shut off or stay on? Keeping my foot on the brake while opening the door does not seem to affect it as it still seems random (it has shut off with foot on brake and without). My particular V-60 does not have the keyless drive feature. So, what am I missing? THANKS!