2011 Hyundai SONATA HYBRID Vehicle Speed Control Problems, Complaints and Defects, Recalls and Failures

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2011 Hyundai SONATA HYBRID Vehicle Speed Control Problems, Complaints and Defects

 Issue ID1375633
 Internal NHTSA #10983503
 ManufacurerHyundai Motor America
 Model Year2011
 File date03/04/17
Product type codeVEHICLE
 Description of the problemCharging system malfunctioned, sensors melted in valve trane, radiator elbow and fill neck blew off, complete engine failure and battery failure. I have had a problem with the "check brake" light and an alarm going off. However, when i stopped driving and had it towed to the dealership they could find nothing. Prior to this incident, i took a photo of my dash, i had 76,499 miles and the coolant meter did not read hot. I had had the coolant system flushed at 65,000 miles, and i had all oil and fluids checked again after this incident. The breakdown: three hours into a roadtrip, the a/c began blowing warm, simultaneously - the "the check brake" light and alarm came on, and the "check charging system" light came on. I lost power to accelerate (or brake well) and immediately pulled over and took a photo of my dash warnings (76919 miles). The heat sensor was in the "cool" half, the battery gage showed no power. Battery so low key would not start car. I had the car towed. "tech found that elbow and radiator have holes in them vehicle overheated causing engine to blow." tiffany richardson said "tech believe vehicle was driven with low coolant level causing vehicle to run hot melting sensors in the valve train and the pipes to fail." the tech is wrong, the coolant system was inspected and flushed at 65,000 miles, and was not due for another inspection. I had had coolant levels checked less than 1000 miles ago, and the heating sensor on dash did not read hot, at the point of breakdown or after a road trip 500 miles ago. Others had the problem at 3000 miles! It's the hpcu. The power for both electric motors is routed through hpcu. The inverters allow the a/c motors to be driven by d/c batteries. This caused the "check charging system" error. This is $15,000. 00 and i owe $4000 on the car - 100,000 warranty has denied it & i am original owner.
 Vehicle Mileage at Failure76000
Number of Occurences
Source of the issueNHTSA WEB SITE
 City and StateMIAMI BEACH, FL
 Was vehicle invloved in a crash?N
 Was vehicle involved in a fire?N
 Was incedent reported to police?N
 Was medical attention required?N
 Was part original equipment?
No. of injured persons
No. of fatalities
 Date of purchase29/02/24
Was original owner?N
Anti-lock brakesN
Cruise controlN
Number of cylinders
Drive train type
Transmission type
 Vehicle speed65
 DoT tire identifier
 Tire size
 Location of tire code
 Type of tire failure code
 Was defective tire repaired?
 Date of manufacture
Type of child seat code
Type of restraint
 Dealer's name
 Dealer's telephone number
 Dealer's city
 Dealer's state code
 Dealer's ZIP code
  • What is Recall?

    A recall is when a product is removed from the market or a correction is made to the product because it is either defective or potentially harmful.
  • What is Failure?

    Failure is the state or condition of not meeting a desirable or intended objective, and may be viewed as the opposite of success. Product failure ranges from failure to sell the product to fracture of the product, in the worst cases leading to personal injury, the province of forensic engineering.
  • What is Defect?

    Non-conformance of a car component with the specified requirements, or non-fulfillment of user expectations, including the safety aspects.



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