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2012 Hyundai SONATA Power Train Problems, Complaints and Defects

Issue ID	1590008
Internal NHTSA #	11242346
Manufacurer	Hyundai Motor America
Brand	HYUNDAI
Model	SONATA
Model Year	2012
File date	27/07/19
Component	POWER TRAIN
Product type code	VEHICLE
Description of the problem	2012 hyundai sonata hybrid has been experiencing rough transmission operation after software update service was completed for the car at a dealership. The software update to the car computer system was know as "service campaign 953" (knock sensor detection system - engine monitoring technology). Ever since the car computer system was updated, the transmission has been operating very rough. The car started jerking when in motion and the engine would race when i stepped on the accelerator. Also, the service light on dashboard illuminates. When l called the dealership and reported the transmission hesitation problem, they tried to fix the issue by running diagnostic tests and replacing the esc relay. All did not solve the problem. Later, l was told there was nothing they can do about about it, unless am ready to take care of the expenses (diagnosis and mechanical), because the car is out of warranty due to mileage. I told them the car transmission was operating smoothly until after the software update was applied to the car computer system. As of right now, i believe the software service to the car has caused this changes in the transmission. I also think, the dealership should have worked on fixing the issues on my car regarding the software service update. I want to this issue to be critically looked into, since there may be many out there with hyundai sonata transmission predicament.
Vehicle Mileage at Failure	153700
Number of Occurences
Source of the issue	NHTSA WEB SITE
City and State	LITHIA SPRINGS, GA
VIN pattern	KMHEC4A44CAXXXXXX
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 purchase	07/08/26
Was original owner?	N
Anti-lock brakes	N
Cruise control	N
Number of cylinders
Drive train type
Transmission type
Vehicle speed
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.

Last decoded VIN:

WDD1770122J082298 5WFBU1410MW106448 KMRH381EDKU043387 WAUZZZGA9LA048F61 WB101880XGZ668293 ZFA334000GP440721 WF0HXXGAJH3S83564 WBA3A5C52CF257173 JTEBZ29J500200051 W0LLH6E11BB021830 5J6RM4870EL520069 1GTW7BFG1G1215090

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2012 Hyundai SONATA Power Train Problems, Complaints and Defects, Recalls and Failures

2012 Hyundai SONATA Power Train Problems, Complaints and Defects

What is Recall?

What is Failure?

What is Defect?