Truck wouldn’t start. Had to Jump. Dealership says everything fine.

I had this happen last fall on my 2019. It was only 1 year old and battery kept going dead. Put meter in line with negative lead and found my Dash Cam was draining. It had done a firmware update through the phone app and I did not know it. One setting that changed was how the camera operates with ignition off. The old default was to hibernate. The new default was always on. I changed the setting back via the phone app and haven't had the issue since.

Or the battery is bad

 

first glance

 

Have you checked the water level of the Battery? Don't assume the dealer did.

 

You also have an ECU that can't properly charge an AGM. AGM battery requires a tune to up the alternator output, or to be put on a charger occasionally to keep from failing.

 

Optima has gone downhill over the last few years. Look around a few places at the "Autopsy" videos on failed units and you can see they have started to cut corners on construction.

 

That is sad to hear. I guess I will have to do some research and pick the best cold weather battery out there. My friends in the great white north will know!

I hear they love Odyssey batteries but I am not familiar with them.

 

One of these will work very well. US made and top quality. Great bang for your buck.

https://www.rockauto.com/en/moreinfo.php?pk=8936996&cc=3443373&pt=2476&jsn=377

 

There was a post about the stock alternator not charging these correctly? Is that just BS or do I need to work some magic?

 

Update: It was the battery.