Oh and regarding the battery, see if you can find a date code. If it's much older than 5 yrs, I'd consider replacing it. Our 2011 Suburban had a 2015 battery that would die after leaving interior lights on for 30 min. And a battery tester said it was "good"...$150 later from Costco and we're good for the foreseeable future. Not fun to have a dead battery in the middle of nowhere.