NHTSA Complaint #11495551 — 2014 DODGE JOURNEY

My car is showing signs of electrical malfunctioning. My Journey stopped at a traffic light and would not turn back on. It was like the battery had died. When I gave it a jump, the lights would come on but not start. Once the cables were taken off the car would die again. Randomly after letting it rest, the car started and I took it to the shop to get the alternator checked. They kept it for about two days and I was told that the alternator was good. The car also never cut off while they had it. A few days later, While driving the car kept glitching on and off. The screen in the car (radio) would go completely blank. When it came back on it was reset to a default time and radio station. A few days later The Journey would drive fine but only for a short distance. Today my car stopped once again at a stop light. After trying to give it a jump the lights would come on (as long as it was hooked up to another car) but once the cables were off the car would be completely dead. I will be taking it to dodge soon to get a diagnostic test ran. Is there any suggestions or information I should know about before taking it to get tested?