Personally I'd get it back to the dealer ASA you're sure how to duplicate the bang consistently.
I'm in a HUGE fight with my dealership on that right now. They've had my car for a solid month - finally able to reproduce the problem and sent the data off to some data center in California (!!??!!??) and were waiting on instructions on how to repair the problem. After a week of hearing nothing, I went to the dealership and was told they'd ordered a replacement shift solenoid and will replace that. I know from other research that that is not the solution to this problem. The transmission is bad, and the only fix is replacing the transmission with a new one.Anyone actually sort this issue out? Other than replacing the tranny? Our 2017 XL is doing the same thing as everyone on here has mentioned. Took it to our mechanic and he spent the day off and on driving it and could not duplicate.
I took to the dealer. It's the same thing, they ran 15 miles but couldn't recreate the case. They told me they check the Hyundai "Black Box" records, there was nothing about transmission issue.Anyone actually sort this issue out? Other than replacing the tranny? Our 2017 XL is doing the same thing as everyone on here has mentioned. Took it to our mechanic and he spent the day off and on driving it and could not duplicate.