2016 Hyundai Equus

The contact owns a 2016 Hyundai Equus. The contact stated that while driving at an undisclosed speed, the headlights and both turn signals became inoperable and failed to illuminate. The vehicle was taken to the dealer where the vehicle was not diagnosed or repaired. The contact was informed that the failure could not be duplicated. The contact further stated that the failure persisted after the vehicle was returned from the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 66,000.

There are actually 3 problems that my dealer has not been able to fix/diagnose. The first is the headlights, when set to the auto position, they will often turn off and on while driving at night. Service says that they were unable to duplicate the problem, but it keeps happening. The second is the Navigation system updates, that they claim they cannot provide any updates to my 2016 Equus (just about all other years and models are available). The third is the voice recognition system, which only recognizes my voice for phone calls, but not for directions. The dealer (Gettel Hyundai of Sarasota FL) had my vehicle for two weeks and was not able to fix any of these problems, although they charged me over $500 for diagnostics. If I look at the Hyundai Owners Forum, I see these problems documented over and over and I provided the dealership with that information to no avail. I also notified the BBB of my problems, (case# [XXX]), but they are not returning my calls to them in order to update them on my lack of resolutions to my problems. What if anything can I do to pursue this ? I have copied in the CEO of Hyundai USA (J. Munoz) and after initially designating someone under him to get involved, has since been unresponsive (since October 6th, 2023). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)