About a year ago, I was driving about 80 mph and the dash lights and radio just died, then within seconds everything came back on. It only happened that one time. The other day, I was on a busy highway headed home when my battery light came on. I just replaced both the alternator and battery less than a year ago. I started inching over to the left land (just in case) when the car just died and I had to coast to a stop in the middle of the highway WITH MY 3 KIDS!!! The police came and I was able to start the car and pull it on the shoulder, then a tow truck came and dropped it off at Infiniti. They had my car for 2 days and couldn’t find anything and they told me to come and pick it up. Within 30 minutes of me picking it up, it did the same thing so I took it right back to Infiniti and dropped it off. Today, they called me and it was finally doing what I said it was doing. Battery light, electrical cuts off and car just dies.