Battery Dead problems of the 2014 Buick Verano

Purchased this vehicle January 2015. At this time I now have 73000 miles on it. While driving the wrench and lightening bolt flashes on and off really fast multiple times and the car began to jerk. It only lasts a few seconds but now it keeps doing it and im scared it will cause an accident. I took it to my local Buick dealership and they said no codes were found, but my battery test failed so I paid for a battery replacement. However the battery that was replaced was only a year old! even with the battery replaced it still happens and we cannot figure out why. What would cause a battery to fail in a years time? what would cause that specific light to flicker and the car began jerking. No codes are showing up on their system so they cannot figure out why it is happening. And of course it doesn't happen when they drive it for a bit, but it happens when I drive so they cannot see what it is doing.

Car will not start. Battery totally dead. Could not even get the key out of the ignition. Aaa came and jumped battery, found no cause or reason for the problem. Car is used every day; this problem was found in the morning after sitting in the garage all night. No sign of anything left on or anything causing the dead battery. Battery took charge and car perform well during the day (today). . This has been reported by others on this model and also on 2012 and 2013 Verano models.

Car would not start. Battery totally dead. Could not even get the key out of the ignition. Aaa came and jumped battery, found no cause or reason for the problem. Car is used every day; this problem was found in the morning after sitting in the garage all night. No sign of anything left on or anything causing the dead battery. Battery took charge and car perform well until 09/19/2015 when the same thing happened again. Dealer says no cause found or known. This has been reported by others on this model and also on 2012 and 2013 models.