Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2009 Hyundai Genesis owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2009 Hyundai Genesis. The contact stated while driving approximately 40-45 MPH, the vehicle stalled and lost electrical power temporarily. There were no warning lights illuminated. The vehicle was taken to the dealer who test drove the vehicle and diagnosed that no issues were found. The contact stated that the failure reoccurred several times while driving and the vehicle was taken to the dealer, where unknown repairs were completed; however, the failure persisted. The vehicle was towed to the dealer and was diagnosed that the wiring harness had failed. The contact followed up with the dealer and was advised that an unknown module needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 100,120.
Odometer Fraud. The contact purchased a 2009 Hyundai Genesis. The contact discovered a mileage discrepancy after the purchase of the vehicle. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 121,000. It was later discovered through auto check that the mileage was 199,985.
I was on the freeway and my car suddenly shut off completely.. engine, dashboard, lights EVERYTHING.. it was off for maybe 2 seconds and then the car Powered itself back up the car did not stop abruptly, so I was thankful for that. I didn't panic or pull the wheel. I just continue straight and then thankfully it cut back on and then I got off the freeway as I was driving down the street not going more than 1015 miles my car cut off on me again it did the same exact thing everything just went off and then it cut back on mid drive and I have a four year-old toddler and I have been scared out of my life. Something is clearly wrong I need help please , no one can tell me what the problem is
Vehicle was in motion on city street when another motorist signaled that flames were coming out of front drivers side bumper. Fortunately, my wife was nearing home and pulled over in front our house where I sprayed and soaked area of fire until it receded. When I was able to view damage, the drivers side fog light bulb and housing had dropped thru the large hole which had burned thru the plastic bumper. The bulb and housing evidently dislodged from the fog light socket and dropped into the surrounding plastic bumper below and triggered the fire . Our complaint is that the car has at least ten dealer service repairs which shows replacement of several lights and bulbs including the fog light involved in the fire. …
Was driving car to meet my husband and when I turned the corner, he was frantically waving me to get out of the car because it was on fire, in the front under the driver's side bumper. I got out and saw flames shooting from under the bumper. With the fire department on the way, we made several attempts to put the fire out w/water to no avail. A nearby store owner came out with a fire extinguisher and was able to put the fire out. Once fire department arrived, he indicated that it appeared to be an electrical fire. Once they moved the car, my husband attempted to start it and it started billowing out smoke. At that point, the fire department ordered him to turn it off and have the car towed and to not drive the vehicle again
I visited Hyundai dealer near my home sage Hyundai located at 200 n vermont ave, los angeles, ca 90004 for stop lamp of my 2009 Genesis sedan 3.8 stopped working about a week ago after one of vehicle behind almosted rear ended my car and they informed me about stop lamp did not illuminated. I discovered it was Hyundai recall campaign NHTSA #: 14V713000, Hyundai recall # 125. They service department of the dealer did not do any repair and just let me go. And service rep. Stated that the recall is limited to only on stoplamp switch not on any other related circuit. They never had any diagonostics performed. I had to drive home in very dangerous situation without stop lamp light working. There are always stop and go traffic where my home is. I was very scared when I drove home.
At approximately 7:50 am on my way to work, heading westbound on rodeo rd and was going to make a left turn at cloverdale my car stalled. During the stall the engine cutoff and the electrical power in the car seemed to reset itself. As I was coming to a stop, I could feel the brakes not working and I put the car into park and tried to restart the engine by pushing on the start/stop button. When that didn't work, all the power in the car went out and nothing worked, no emergency lights, no power anything. I called roadside assistance and had them tow to the nearest dealership. This is the second time this has happened. The first was on Sunday night September 6th, 2015 at around 8 pm in san jose. I put that as a complaint on this system at that time.
Tl* the contact owns a 2009 Hyundai Genesis. The contact stated that the vehicle was recently purchased. The contact experienced a failure in starting the vehicle. The vehicle was towed to south loop Hyundai located (8811 lakes at 610 dr, houston, tx 77054, [phone]) to be diagnosed. The contact was informed that all the wiring harnesses in the vehicle needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and informed of the failure. The approximate failure mileage was 120,000.
This car has electrical problems. I saw a low battery indicator light on my dashboard while driving. I replaced the battery with a new battery from auto parts store. That new battery died on one week. Had to tow my car to the mechanic. Diagnosed with a weak alternator. Not a dead alternator but a weak alternator. I was told this is common with the Genesis cars. The weak alternator caused electrical problems for the rest of the car causing weird electrical problems occasionally.
Power steering has failed while driving multiple times during the past 18 months. I have brought the car in for service at my local dealership for the same problem multiple times. The power steering has been replaced twice and the rack and pinion has been replaced but the problem persists. A fault code generated from the power steering failure but Hyundai mechanics and Hyundai corporate do not recognize the code. Unbelievable!
Electrical complaints in other Genesis years
Frequently asked questions
How common are electrical problems on the 2009 Hyundai Genesis?
NHTSA has 29 complaints about the electrical system of the 2009 Hyundai Genesis, 12% of the model year's 235 complaints. The component named most often is 12v/24v/48v battery (1 mentions).
Is there a recall for 2009 Hyundai Genesis electrical problems?
No. NHTSA lists no electrical system recall for the 2009 Hyundai Genesis, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2009 Hyundai Genesis electrical problems start?
Half of the complaints with a recorded mileage happened before about 68,000 miles, and 16% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 2 fires and 0 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.