The contact owns a 2007 Hyundai Sonata. The contact stated that while driving at approximately 60 mph, the ESC and the engine warning lights illuminated intermittently. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 69,000.

- San Jose, CA, USA

I was just driving to work and the ESC off light came on, the only way I have been able to get it to go off is to restart the car. One of the times I had trouble getting the car in to park but after playing around with the brake pedal it final allowed me to shift. It has been happening randomly, I had it check for error codes and nothing could be found.

- Parma, OH, USA

During a snow storm, I was attempting to make a stop. My brakes would not engage (as if something was keeping the brake shoes from engaging onto the wheel). There also was a loud clatter. I disengaged my electronic stability control and was only then able to apply the brakes. Today I took my vehicle in for service and was told that the stop switch needed to be replaced. I saw Hyundai had a recall NHTSA campaign #: 09V-122 which was published April 15, 2009.. according to my VIN history, my stop lamp switch had been previously replaced on 4/4/09 by malone Hyundai. I contacted Hyundai corporation and asked if perhaps my stop switch, since being replaced before the recall, might have been replaced with also a defective stop switch. The case manager told me that the 5 year, 60,000 mile warranty on parts was 5 years, 60,000 miles from the time the vehicle was first driven new off the lot and Hyundai would not replace my defective stop switch unless I took the vehicle to a certified Hyundai dealership and they could certify that my switch was installed incorrectly. On safercar.gov, you have several documents published related to this recall. In the document entitled "owner notification letter", page 2 which is a notification to Hyundai dealership & service managers dated 6/24/2009, paragraph 5 says: "all Hyundai dealers will be shipped a supply of stop lamp switches..." which implies all existing stock of these switches were potentially defective! your assistance is greatly appreciated in getting Hyundai to take responsibility for this defect!

- Tulsa, OK, USA

ESC off light comes on periodically; cruise control not working. Stop lamp switch replaced in 2010 but problem persists. Dealer wants to charge fee to diagnose problem and additional charges to repair. Should have part of recall.

- Washington Dc, DC, USA

The ESC off dashboard warning light is on and the brake lights are not working correctly.

- Las Vegas, NV, USA

I recently read an article about the NHTSA investigating Sonata faulty rear control arms that affect the electronic stability control. On occasion, my Sonata will light up the electronic stability control disabled dashboard indicator. The electronic stability control will indicate that it's off for a few miles of driving and then the disabled light will turn off and I am presuming that the electronic stability control is back on. I have not felt any difference in the driving when stability control becomes disabled, but that very well could be because I usually asee the indicator light up (on the occasions that it happens) in the morning after starting the engine and driving slowly through the neighborhood to exit. After driving at speeds of about 40 for a few miles, the disabled indicator disappears. Total times issue occurred: About 10 or less since first occurrence mid 2012.

- Tucson, AZ, USA

2007 Sonata with 37,000 miles. Check engine light and ESC light come on and car goes into limp mode. Extremely unsafe. Happens randomly. Have to pull over because car won't accelerate. Car needs to be shut off and turned back on. Code P2135 and P2106.

- Scranton, PA, USA

2007 Hyundai Sonata 3.3L failure of the throttle sensor and computer programming caused the vehicle to stop accelerating. The engine malfunction light and ESC off light came on. The vehicle was being operated at 65 mph in very busy morning traffic when this occurred, putting the two occupants in a potentially extremely hazardous situation. The vehicle was on an inside lane behind a heavy truck and beside another heavy truck when the vehicle would not accelerate and went to idle. This occurred on I-84 in the boise, id corridor. The vehicle was towed to the local Hyundai dealer via Hyundai roadside assistance. There was no advance indication that the vehicle had any mechanical issues. This incident could have caused a potentially fatal accident.

- Meridian, ID, USA

On June 2, 2008 the ESC (electronic stability control) light on the dash indicated the ESC was not engaged. It went off after I stopped the car and restarted. The light came on 2 more times in the next 4 days. On June 6, I was making a "Y" turn on a residential street and the shift would not move out of drive. Having read the owner's manual previously, I popped the button on top of the shift console and pushed the button with my knife. I was able to get into reverse, but the shift locked down again keeping me from going into drive. I had to push the button. I brought the car to my dealer on June 16. The brake light switch was faulty and sticking causing the problem. Since I have only 8,456 miles on the car, warranty covered the repair.

- Rome, GA, USA