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 2010 Hyundai Genesis owners, lightly cleaned up (personal details are redacted by NHTSA).
Engine cranks normally attempting to start. When failed to start, the 'start' button is pushed to stop the attempt. Tried again. Took 3 attempts to finally start. Once started the engine revs at high RPM's. When put in 'd' the car lurches and accelerates without pushing gas pedal. If the car is turned off after starting and restarted, fast acceleration is eliminated. Car has ultimately started, but the fear is it will get worse and ultimately fail to start stranding the driver. Car runs perfectly in normal driving on the highway. This has occurred almost daily for 90 days. Hyundai service: taken to Hyundai on two occasions. They say they could not duplicate problem and no computer error codes generated. Stumped! Can do nothing if problem can't be duplicated by service tech! Keeping quiet? New condition 4/26/18! Car has shut down twice at a stop light, 4/26 and 4/29. …
Tl* the contact owns a 2010 Hyundai Genesis coupe. After being parked for three months, the vehicle failed to start. The contact looked under the hood and found rodent excrement, food particles, and noticed that the wiring harness was chewed through. The vehicle was towed to bob baker Hyundai (located at 5285 car country dr, carlsbad, ca 92008, [phone]) where it was diagnosed that the starter needed to be replaced. The vehicle was repaired; however, the contact stated that the mechanic failed to properly diagnose the vehicle. The repair cost $1,300. The contact stated that the check engine and tire pressure monitoring system warning indicators illuminated after the vehicle was repaired. Additionally, the contact was informed that the engine's wiring harness was soy-based. After the vehicle was repaired, it failed to operate as intended. The manufacturer was notified of the failure. …
This vehicle has a feature where the door mirrors angle down when the car goes into reverse, and then comes back to normal viewing position when you change to any other gear (e.g. Park, drive). Intermittently, one mirror (driver or passenger) does not come back up. The driver will not likely notice the mirror not returning to it normal viewing position until he uses the mirror again, like when he changes lanes. I have had this happened almost a dozen times to me. I have almost side swiped other drivers on three occasions. I have been to the dealership nine times so far, but they have not fixed it. It is hard to diagnose because it doesn't happen often. Many other Hyundai Genesis owners have seen this issue. Http://www.genesisowners.com/Hyundai-Genesis-forum/showthread.php?t=10483.
The tire pressure monitoring system (TPMS) displays erroneous tire pressure readings during cold weather climates despite having the correct psi or adding air to reach an ultimate psi reading. This has been an issue with other models of Hyundai vehicles with the TPMS feature according to other owners.
Vehicle suddenly loses acceleration and drops to a maximum speed of 20 MPH. Check engine light turns on but goes away after shutting down the car and leaving it on standby for a few minutes. Occurs every few hundreds miles. It's happened while the car is in motion, both on the street and highway.
Headights turn off for several seconds while driving then come on again eventually. Both headlamps go off together. Headlight switch in manual on position, not the auto on/off position which I do not use.
Electrical Battery Draining Replaced Battery In Oct 2023 Within 1 to 3 Weeks No Power Battery Dead . Cannot Find What Is Drawing Power That Is Draining The Battery.
Hello NHTSA administrator, I bought a new Hyundai Genesis in March 2010. Around August 2010, I had a small fender bender in the parking lot. To keep warranty intact on the car, Hyundai insisted that the wiring harness on the car be replaced, which I did for approximately $5000. Since then, I have had multiple electronic items go bad in the car. I replaced some of these at my own expense. But the problem has gotten worse with some expensive electronic components going bad over the last 2 years. In normal circumstances, these components should not go bad over the life of the car, and certainly not at a frequency that they have failed in my car. I attribute these failures to bad/defective job done during wiring harness replacement. But Hyundai has refused to accept responsibility since the car is out of warranty. …
I began having this issue 10 days ago with my 2010 Genesis coupe. The concern I had was not only was the interior flickering but it resulted in my running night brake lights not working. I took the car to the dealer I'm at 62K miles just out of warranty. They ran diagnostic and thought it was a lose bracing for the wires. I picked it up and the issue began again. I took it in 4 days ago they then said it was a fuse switch issue and replaced it but the issue continued. They then said it May be a fuse box issue couple of hundred $$ or worst case a main issue with total wiring from internal fuse box and fuse box in the engine area which could run $2K! But no definite answer to what was causing this. The Hyundai representative said they even happen to have a senior electric engineer on location that day and he couldn't pinpoint exactly the problem.
2010 Hyundai Genesis 3.8l v6 w/ premium navigation package (touchscreen): Bluetooth connects to phone even when accessory power is off. The following was observed with or without the Smart key: 1. Every time a door is opened, or the remote is used to lock the door, the Bluetooth gets connected; 2. Once inside the car, the Bluetooth keeps connected without starting engine or turning accessory power on: 3. Step out of the car, close the door, and wait a minute or so, the blue tooth disconnects. Cell phone becomes useless in these situation unless I: 1. Turn phone's Bluetooth off; or 2. Start engine or turn accessory power on to use car's speaker and mic; or 3. Move away from the car, 20' or so; or 4. Step outside, close door and wait for a minute before using the phone -- all appear safety hazard in an emergency.
Related recalls
Electrical system › Ignition › Interlock/lockout
Hyundai Motor America (Hyundai) is recalling certain 2010-2013 Genesis Coupe vehicles. A return spring in the ignition lock switch may fracture, which can result in unintended vehicle movement when the vehicle is started in gear, without the parking brake applied.
Remedy: Dealers will replace the ignition lock switch, free of charge. Owner notification letters were mailed September 4, 2024. Owners may contact Hyundai customer service at 1-855-371-9460.
Electrical complaints in other Genesis years
Frequently asked questions
How common are electrical problems on the 2010 Hyundai Genesis?
NHTSA has 23 complaints about the electrical system of the 2010 Hyundai Genesis, 15% of the model year's 156 complaints. The component named most often is ignition (1 mentions).
Is there a recall for 2010 Hyundai Genesis electrical problems?
Yes — NHTSA recall 24V-562 (interlock/lockout, Jul 25, 2024). Recall repairs are free at authorized dealers.
At what mileage do 2010 Hyundai Genesis electrical problems start?
Half of the complaints with a recorded mileage happened before about 55,000 miles, and 24% before 25,000 miles.
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.