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I recently purchased a 2009 Hyundai Genesis sedan, 4.6 liter V8 with 108,000 miles on it. My wife and I were running errands over the past weekend and made a stop at the store. We got out, locked the car and did our shopping. When we were done, we came back, unlocked the car, got in and attempted to start the vehicle.
The car was totally dead. There were no dash lights, the radio did not come on, and the nav screen was pitch black. I opened and closed the drivers side door, and for a split second, the lights on the dash came on, and the drivers seat slid forward to my preset position. After that, there was a complete loss of power again and the car would not start.
I got out and checked the battery, which is located in the trunk. There were no signs of corrosion on the battery posts. The battery cables were secure, as were the ground connections. I checked the 50 amp and 10 amp fuses located near the positive cable, and they were not blown. I checked the fuses under the hood as well as ones located on the drivers side compartment, but these fuses were good as well.
I had to call a taxi to take me home and get my second vehicle. When I returned, I removed the battery and took it to two different auto parts stores to get tested. The battery was tested a total of 3 times, and all 3 times I was told that the battery had a 100% charge. The battery was an OEM battery (manufacture date Feb 2018) and not a Hyundai factory battery.
I then took the battery back to my car and reinstalled it, and as soon as I connected the battery cables to the battery posts, the power to the car was regained, and I was able to start the car and drive it home with no issues. I did read some posts on the Genesis forum, where other people reported similar issues. The most common theme among the posts that I read was that the issue was most likely being caused by a faulty battery. Most of posts said that the Genesis is very particular when it comes to batteries, and that OEM batteries should not be used, due the difference in battery post size. It seems that battery cables have a tendency to come loose when an OEM battery is installed.
I went to the Hyundai dealership this morning, bought a new Hyundai battery, and installed it. It's way too early to tell if this is going to fix the issue, but I sure hope it does. I bought the car for my wife, and now she is scared to death to even drive the car. I can't say that I blame her. If the car had lost power while driving, there is no telling what would have happened.
Long story short, I think this failure mode is recall worthy. This issue could cause an accident or death, and I hope the Quality Team at Hyundai will take this seriously and do something about it.
- JJ C.,
Arlington, TX, US