I had an issue of a dead truck this morning. Bought the truck on 11/22/19, was a demo with 5,000 miles on it, and had been sitting in the showroom floor. Build date is 2/2019.
Today, 12/12/19, went to remote start the truck and nothing happened. Unlock it with remote, nothing. Tried to use the manual key to unlock it, key won't turn. Tried this process probably 20 times, with both key fobs, and could never get into the truck. I called the dealer, and they said to get a tow truck and bring it in. As soon as the tow truck driver arrives, I go to show him that it won't unlock and open, and when I try to put the key in the door, it finally unlocks. Get inside and find the truck completely dead. Tow truck driver jumped me off and we got it started, but the screen wasn't working at all. Drove it straight to the dealer where they have had it all day today.
I spoke to the dealer about an hour ago, and they said the battery is completely dead, but they are having to run it through a machine that charges it completely up, then checks for warranty codes so they can tell what went wrong with it to submit it for a warranty claim. When I talked to them the "machine still had 1.5 hours left to run."
The reason for the dead battery that was given to me is that since the truck sat on the showroom floor for a while, the battery must have gotten weak and may have damaged the battery. Then the cold temperatures here last night (in the single digits, in Michigan), it must have been enough to fully kill the battery. Not sure if I believe this reason or not, and not sure why it would take a full day to check and replace the battery.
I'll update (hopefully tomorrow) on what the outcome of mine is.
Good luck on yours, Twoamen