You got warnings,, have dealer do a COMPLETE FAULT CODE SEARCH of all the onboard modules,, since most all is tied together on Communication Area Network,, you want to see everything, and if anything tied together..
I have a 2014 Sonata Hybrid which already had the engine replaced from the class action law suit from the debris in the de-burring process of the block. Now the hybrid system failure light comes on and Techline the company they use here in Las Vegas has no clue on what is wrong with it. They are telling me that the system is overcharging the batteries but they cannot tell me why. I've got Hyundai USA involved to hope to resolve this issue one way or another.