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2011 Hyundai SONATA Engine Problems, Complaints and Defects

Issue ID	1243717
Internal NHTSA #	10808421
Manufacurer	Hyundai Motor America
Brand	HYUNDAI
Model	SONATA
Model Year	2011
File date	13/10/13
Component	ENGINE
Product type code	VEHICLE
Description of the problem	For the last 2. 2 years my sonata limited has not kept a stable coolant level. We first noticed the problem when on a trip in arizona when we checked the oil just to be safe. I was about 1k from needing an oil change. We added 50/50 coolant and drove home and immediately made an appt with the dealership. They said they didn't find a problem and sent me away. This issue continued, coolant would be low or gone between oil changes (3k miles). I have taken the car back at least 4 times and although they have "fixed" a couple of potential issues, the problem persists. I have lived in extremely warm climates all of my life and i have never had a car where the coolant seemed to vanish for no reason and not leave a trace. I am now at 52,370 miles and am concerned that there may be damage and i will not have a warranty soon. I am considering the song-beverly warranty rights. Please help!
Vehicle Mileage at Failure
Number of Occurences
Source of the issue	NHTSA WEB SITE
City and State	AZUSA, CA
VIN pattern	5NPEC4AC8BHXXXXXX
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:

WBA2C12050V778796 SCBFE63W8EC097035 WVWZZZ3BZYE473825 4JGFF8KE1SB379710 1FTSE3ELXCDA23717 WDD2052772F903495 ZHWUA6ZX9PLA22787 3VV3B7AX4MM056068 MB8ED11M7R8101952 MMFVL34080VT98823 ZFFEZ58C000014946 1GNFC13J68J176253

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2011 Hyundai SONATA Engine Problems, Complaints and Defects, Recalls and Failures

2011 Hyundai SONATA Engine Problems, Complaints and Defects

What is Recall?

What is Failure?

What is Defect?