Table 1 shows one common unknown or other related problems of the 2009 Hyundai Sonata.
| Problem Category | Number of Problems |
|---|---|
| Unknown Or Other problems |
The radio was change by hynudia because the navigation system failed and now after the warrenty up the navigation system failed to work the voice does not get loud.
I bought my 2009 hyunia in for 16,500 mile check and was informed that my rear brakes failed and the brake shoes and rotor needed replacement. I told them I had not noted any symptoms of or sound of brake failure and would get a second opinion. At 18,701 miles I noticed noise while breaking and returned to the dealer the service manager suggested the damage was caused by driving with the emergency brake on. I told him that I do not ever need to use the emergency break and surely didn't drive with it on! he then said it was caused by rust. I wouldn't expect rear brakes to fail at 16,000 miles. After checking on-line I found it is a common failure with Sonata. I had to pay $423. 00 to repair what I consider to be a design or manufacturing defect.
While driving my car I attempted to shift to third gear and discovered I had no clutch pedal. This problem continued for the next half hour till I arrived at my destination, where I parked it. A few hours later I started to go home and the clutch worked fine. Indicating that the problem is not in the clutch. I believe the hydraulic master cylinder loses pressure somehow causing the problem.
I have had 2 instances of sudden acceleration. 1st incident I was backing out of my garage and the car shot backward narrowly missing my house. 2nd incident about a month later I was pulling into a parking spot when the vehicle suddenly accelerated. The car shot forward & I had to slam on the brakes to avoid hitting a fence. Both incidents the vehicle was going less than 5 mph. I have also noticed the vehicle jerking occasionally in traffic when you ease up on the gas pedal.
Rear brake failure on a 2009 Hyundai sonota. Brake slides clog with dirt or rust causing them to become inoperable. They either get stuck in the applied position wich causes them to wear to the point of metal to metal causing extreme heat and possible fire or they stick open and do not engage when applied.
I started my car and as I started to turn the steering wheel so I could pull out of the parking space smoke spewed from my dashboard. I looked up under the dash and noticed the wiring harness in flames. I extinguished the fire. I then had the car towed to a Hyundai dealer. They examined the damage and said tat it would cost me $4000 to repair it as I needed a new wiring harness. Hyundai claims it wasn't a manufacturers defect, even though the car was purchased brand new and therehas been no alterations or modifications, the same wiring harness is used in kia which has a recall on a wiring harness. I am in possession of the burnt harness and it clearly has kia written on it.