
I agree. Any vehicle that has to be started every few days to charge the batteries has an issue.
If the batteries are in fact draining when the truck sits, as opposed to when it’s running (have they even confirmed that?), you have an issue with parasitic drain and/or you have bad batteries.
If the batteries drain when the vehicle is running, like I had when the 150A fuse array blew that cuts the charging circuit between the alternator and the main battery (but not the Aux battery), you have a charging issue.
You have a $90K that can’t sit for a few days without the batteries dying? Seriously?
If that was the position of my dealer’s service manager I’d be looking for a new dealer to service my vehicle.