Investigations


NHTSA IDManufacturerDate openDate closeSubjectRecall campaign
VEHICLE SPEED CONTROL - CRUISE CONTROL
PE09003HYUNDAI MOTOR COMPANY01/14/200904/24/2009STOP LAMP SWITCH FAILURE09V122000
 By letter dated april 15, 2009, hyundai notified the agency that it will conduct a safety recall (nhtsa recall number 09v122) to replace the stop lamp switches on many of its model year 2005-2008 vehicles.see recall 09v122 for a complete list. the agency opened its investigation based on five complaints of stop lamp failure across several 2007 hyundai models. the agency also received early warning (ewr) reports on this issue.most of those failures were traced to the improper operation of the stop lamp switch that controls stop lamp illumination.a malfunctioning stop lamp switch can cause the vehicle's brake lights not to light during braking, or alternatively, it can cause the brake lights to stay lit even when a driver takes the foot off the brake pedal. failure of the stop lamps to illuminate properly creates the hazard of rear end collisions when drivers following the subject vehicle do not recognize that the vehicle is slowing or stopping. hyundai reported one crash incident (a frontal impact), without injury, that was alleged to have been caused by this defect.the agency reviewed the incident and cannot conclude that it is related to this defect. there are other potential problems related to failure of the stop lamp switch: failure of the cruise control to disengage, interference with proper functioning of antilock brakes and electronic stability control, and inability to move the gear shift lever out of park position.based on the above safety recall, this investigation is closed.

Consumer Complaints


Fail datemilesoccurencesPurchase date
VEHICLE SPEED CONTROL
02/19/201351000
 Tl-the contact owns a 2007 hyundai sonata. the contact stated that while attempting to park, the vehicle accelerated independently. the vehicle was not taken to the dealer for inspection. the vehicle was not repaired. the manufacturer was not notified of the failure. the failure mileage was 51,000. kmj
02/19/201351000
 Tl-the contact owns a 2007 hyundai sonata. the contact stated that he was parking and the vehicle began to accelerate on its own. the contact stated that he did not crash into anything. the contact stated that the vehicle was not taken to the dealer for inspection. the vehicle was not repaired. the manufacturer was not notified. the failure mileage was 51,000. ap
04/14/201277000
 Tl-the contact owns a 2007 hyundai sonata. the contact was driving 5 mph when the brakes were depressed and the vehicle accelerated unexpectantly, crashing into a wall. the crash caused the air bags to deploy. the contact and passenger suffered injures to their chest areas as a result of the crash. the police were notified and a report was on file. the vehicle was then towed to a local repair shop. the manufacturer was not notified. the vehicle was not repaired. the failure and current mileages were 77,000. sm.
04/14/201277000
 Tl- the contact owns a 2007 hyundai sonata. the contact was driving 5 mph when the brakes were depressed and the vehicle accelerated unexpectantly crashing into a wall. the crash caused the air bags to deploy.the contact and passenger suffered injures to chest area as a result of the crash. the police were contacted and a report was on file. the vehicle was towed to a local repair shop. the manufacturer was not contacted. the vehicle was not repaired. the failure and current mileages were 77,000. rds
11/24/201025728
 While operating my 2007 hyundai sonata, i experienced sudden unintended acceleration (sua) whcih resulted in an accident of moderate property damage and no injuries. i had pulled to a curbside to park, and had stopped approximately 8 feet behind a large suv. as i began to raise my foor off the gas pedal, the engine started to accelerate. i applied the brakes which initially began to hold the car which was starting to move forward, but as the acceleration increased, the brakes became unable to hold the car, and it lurched forward and struck the unoccupied suv. even though my car only accelerated and traveled 8 feet, the impact was strong enough to cause $6000 worth of damage (actual allowance by insurance company). i've since found out that the hydraulic breaking system and the electronic throttling system are inversely connected to the vacuum generated by the car's engine which means that braking power decreases as throttle increases. cause of the sua has not been determined. after i got the car repaired, i took it to hyundai and they were very consiliatory but after checking it for an hour, state that they were unable to recreate the condition and that they did a complete safety check and scanned all the electronic systems to no avail. i had never experienced this condition in the past in this vehicle, however, i had experienced it 3 times in my wife's 2003 hyundai sante fe. in those situations, there was not anything directly in front of me, and i was able to shift into neutral and regain control of the vehicle.
11/19/201042538
 Uncontrolled acceleration incident report incident occurred at 5:05 pm friday november 19, 2010 vehicle: 2007 hyundai sonata from about 50 mph, i changed lanes and accelerated into the lane
05/07/2010106950
 Upon startup, the check engine light illuminated. car was put into gear, but accelerator pedal had no effect; car was in limp mode. turned car off and restarted several times before it went back to normal mode. check engine light turned off. took to dealership and was informed that this was their number one problem/complaint. service manager at tuscaloosa hyundai said they replace the $500+ throttle positioning sensor on 4-5 cars per week. he said hyundai wouldn't issue a recall until someone got hurt. i called hyundai customer service to compalin that this sounds like a major problem that should warrant a recall. agent claimed there were no problems; that mine was an isolated incident. called manager back, and he said that a hyundai representative had talked to him about the wide-spread problem. i believe that hyundai should pay for this repair, as it seems it is widespread, and perhaps being covered up or hidden.
04/12/20082000
 Tl* the contact owns a 2007 hyundai sonata. the contact stated while sitting idle at a traffic stop behind a truck, there was an unusual increase in engine rpms. the vehicle suddenly accelerated into the rear of the truck. the vehicle was towed to the dealer yet the dealer was unable to duplicate the failure. the dealer also advised that if the failure were to occur again, that the contact should put the vehicle into neutral to stop the unintended acceleration. the failure occurred again and the contact was able to stop the acceleration by following the dealer
08/14/200829776
 Tl*the contact owns a 2007 hyundai sonata. while driving approximately 65 mph on normal road conditions. there was pressure applied to the accelerator, pedal, followed by a slow power response. the warning light indicator illuminated on the instrument panel. the driver pulled over to the side of the road and the engine was turned off. the vehicle restarted and he resumed normal operation. the vehicle was taken to an authorized dealer on three separate occasions for identical failures. the failures were contributed to the throttle position sensor. the vehicle was repaired for the malfunctions. the failure mileage was 29,776.
01/06/2010699541
 Tl*the contact owns a 2007 hyundai sonata. the contact was parking the vehicle in his garage when he applied pressure to the brake pedal, followed by an unintended aggressive and forceful acceleration. the engine revved excessively and the rpm's rapidly increased. he immediately forced the gear shift into the park position; however, the vehicle lunged forward and crashed into the garage wall. there were no personal injuries or damage to the vehicle. the cause of failure has not been determined. the failure and current mileages were 69,954. the vin was rejected from the system which will be updated upon receipt of the complaint form. updated 3/8/10 *cn the consumers husband was driving the vehicle up the driveway, when it began to accelerate on its own. he had the brake to the floor, but the vehicle would not stop. he threw the gear into park and the vehicle still did not stop. the consumer hit the garage wall which ultimately stopped the vehicle. updated 06/18/10.*jb
VEHICLE SPEED CONTROL - ACCELERATOR PEDAL
03/03/20084950109/28/2007
 On 3/3/08 i was returning home from picking up my daughter from school. i made a left hand turn onto jones chapel road and when i went to accelerate the car full throttled on it's own. i tried mashing the brakes and it only slowed my car by 10 miles an hour or so. i finally put the car in neutral(the engine continued to rev very high) and shut my car off. i had roadside tow it and it is still at the dealership. they have been unable to duplicate the problem. there was nothing in the floor board and my car floor mat is secured by a peg. when the car took off it literally jerked mine and my daughter's heads back. *tr