I reported this to the Nissan Customer Service website and received a response saying that they were forwarding it to the technical folks. I hope they can come up with some clearer instructions on how to restart a totally dead NAH.

The car was definitley left in Park with the headlights in Auto for 5 days. both the 12 v and high voltage batteries were dead. There were several gallons of gas left in the tank. Shouldn't the engine have come on and recharged everything?

I realize now that it probably would have charged in Park if I had tried it after I got it going. The problem was that the ICE was coming on and then dying when it was in P, so I drove it 100 yards and then put the parking brake on and waited for the HVB to charge up.

Regarding the key issue. I don't think you should be able to walk away from the vehicle with the I-Key in your pocket. My wife must have had a premonition about this happening because that was one of her concerns when we bought the car. If you want to leave the car running, leave the I-key in the car. The car should shut off if it loses communication with the I-Key and sound the horn, not some weak beep.

Tom
San Diego, California
2007 Nissan Altima Hybrid
Radiant Silver - Black Leather
Technology Package
Purchased 5/26/2007