2010 Hyundai Genesis Electrical system Problems

“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. …”

“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. …”

“This is a recurring hesitation problem. I first noticed this when making a turn into traffic. The hesitation is significant. In some cases there is an acceleration pause of 1-2 seconds. This does not occur every time I accelerate but its lack of predictability is a problem in and of itself. I have come close to being rear ended because the car would just not move when I pressed the accelerator. Also, when the car windows are up and the car sits in the sun for a few hours the central nav and communication system over heats and will not function until it cools off (maybe 20 minutes). …”

“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.”

“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.”