Hyundai Equus

I am writing to log an immediate emergency update to my vehicle safety report regarding my 2012 Hyundai Equus Signature 5.0L. On Friday afternoon, July 10, 2026, Hyundai Motor America’s corporate office formally initiated a high-level Tier-2 supervisor review to investigate the severe powertrain safety hazard currently present on my vehicle—specifically, a catastrophic internal rupture of the transmission fluid cooler loop that has cross-contaminated and flooded my engine block infrastructure…

I am reporting a severe vehicle safety hazard involving a sudden loss of motive power and extreme thermal failure on my 2012 Hyundai Equus Signature 5.0L. In July 2022, at 88,845 miles, an authorized Hyundai dealership replaced the transmission under a factory warranty event. Rather than replacing the transmission oil cooler assembly—which was contaminated with heavy metal shrapnel from the original mechanical breakdown—the servicing dealer chose to only flush the lines, creating a latent…

I was driving on the highway and my transmission due to a failed transmission service done to my vehicle caused my vehicle’s transmission to overheat a blowout my transmission cooler and mix coolant and transmission fluid unknown to me because of a clogged transmission cooler line improperly flushed instead of replaced by the Patrick Hyundai dealership there could’ve been and electrical fire or a crash due to these things.

For the last year or so when driving my Equus the signal lights left or right side has been working intermittently. I can go months without any issues but lately it seems to be worsening. I transport my Mom that has dementia around and its scary because it seems never know when the lights may not work at all. People drive so crazy and if its dark or light they dont see my arm out the window. Please tell me that you can assist with this issue. I inherited this car from her brother that died of…

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…

Airbag suspension bags keep unable

The contact owns a 2014 Hyundai Equus. The contact stated that while driving approximately 40 MPH, the driver's side head restraint suddenly deployed from the seat. The vehicle was taken to the dealer and the contact was informed that the head restraint needed to be replaced. The vehicle was not repaired. The contact stated that the failure had occurred with the passenger's side headrest, and the headrest was replaced. The manufacturer was not made aware of the failure. The failure mileage was…

I am reporting a recurring safety-related defect in the headrest mechanisms of my 2014 Hyundai Equus. The first incident occurred in the front passenger seat. While driving, I lightly leaned my arm on the passenger headrest when it suddenly popped up with a loud, startling noise and occurring an road incident . The internal components crumbled instantly, requiring a complete replacement. This was a costly repair, which I first inquired about with the service department at AutoNation Hyundai in…

To: National Highway Traffic Safety Administration (NHTSA) – Office of Defects Investigation From: [XXX] Date: 2 June 2025Vehicle: 2014 Hyundai Equus Location: Columbus, GA   (Other driven locations: Buford, GA; Alpharetta, GA; Duluth GA)1. Summary of Vehicle Cyber Incident:My 2014 Hyundai Equus has been compromised through what I believe to be a remote cyberattack targeting the vehicle’s infotainment and navigation systems. This began shortly after I reported widespread digital and identity…

The contact owns a 2011 Hyundai Equus. The contact stated that the front shocks were previously replaced under an unknown recall. The contact stated that while driving at various speeds, the vehicle experienced rear suspension failure. The vehicle was taken to the dealer, where the rear springs were replaced; however, the failure recurred. The vehicle was taken to another dealer, where the rear springs were replaced a second time; however, the failure persisted. The contact stated that while…