• the engine Hybrid electrical network & anti lock braking system (ABS) failed. The independent scan confirmed codes P136 (engine knock signal) U2093/U1004 ( hybrid control module communication loss) and C1614 (ABS CAN TIMEOUT). The vehicle is fully available upon request. • while driving at highway speeds on the freeway every single light on the dashboard suddenly lit up all at once & the vehicle immediately starting loading acceleration & propulsion power. This sudden loss of speed on a active freeway created a immediate severe hazard of a of a high speed for myself & other motorists. • Yes, the electronic faults components have been confirmed & documented by an independent service center (oreilly auto parts veriscan diagnostic report. 05621260920003155). • No the vehicle hasn’t been inspected by the manufacturer, police , or the insurance representatives. • there were no symptoms or warning lamps prior to the failure everything happened instantly while driving on the freeway when the entire dashboard illuminated at once & the power was lost the physical odometer reads exactly 138,764( (note the third party scanner printout manually estimated 152,000 due to a tool discrepancy but the true mileage is 138,764.
2014 Hyundai Sonata Hybrid engine problems
13 complaints (46% of all complaints for this car). Typical mileage when it fails: 79,684. 1 crash reported.
- owner complaints
- 13
- of this car's complaints
- 46%
- typical mileage
- 79,684
- crashes
- 1
- recalls
- 0
Which part fails
Owners did not name a specific part.
At what mileage
Complaints by mileage at the time of the problem.
Hyundai Sonata Hybrid engine problems in other years
Related recalls
No recalls on record for this model year.
Related investigations
Loss of Motive Power
the federal safety agency received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitionersâ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODIâs evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to the federal safety agency which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan assemblies of the subject vehicles. Based on a review of the available information, a loss of motive power resulting from an oil drain plug back out has not occurred between the initial sale of a vehicle and the completion of its first oil change. If during an oil change service, a technician fails to remove the existing drain plug gasket before installing a new gasket, it is likely that a proper seal between the drain plug and the oil pan will not be made. An improper seal between the drain plug and oil pan could lead to the backing out on the drain plug, resulting in the sudden loss of oil while driving. Additionally, the provided examples of oil pan cracks were localized to the immediate vicinity of the oil drain plug and/or appeared to be the result of direct-contact with a tool during servicing. Â There is no information to support that a vehicle-based defect exists relating to the oil pan assembly, and instead the documented incidents are related to the failure to follow the proper maintenance procedures during oil change service. In October 2023, Hyundai published a Technical Service Bulletin (TSB) that provided detailed instructions for oil change service on its gasoline powered vehicles, specifically highlighting the need to remove and replace the existing drain plug gasket prior to reinstalling the drain plug. After a thorough review of the material submitted by the petitioner, the information already in the federal safety agency's possession, and the potential risks to motor vehicle safety implicated by the petitioners' allegations, the federal safety agency does not believe that a formal investigation is warranted. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing the federal safety agencyâs reasons for denial of the petition will be published. The reference numbers for the complaints to the federal safety agency cited by the petitioner can be found in the petition submission documents in the public file for DP22-003. To review those complaints and the additional complaints ODI added to its evaluation which are cited in the Closing Resume ODI Report Identification Number document, go to
DP22003
What 2014 Hyundai Sonata Hybrid owners say
Most recent owner complaints, unedited.
The contact owns a 2014 Hyundai Sonata Hybrid. The contact stated while driving 60 MPH, there was a knocking sound coming from the engine compartment, after which the vehicle lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle stalled and failed to restart. Several unknow warning lights were illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the rod bearings and observed metal shavings inside the short block. After investigating the failure, the contact related the failure to the federal safety agency Campaign Number: 17V226000 (Engine and Engine Cooling) however, the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the federal safety agency Hotline for assistance. The failure mileage was 134,000.
The contact owns a 2014 Hyundai Sonata Hybrid. The contact stated while driving onto an on-ramp at an unknown speed, an abnormal knocking noise was heard. The vehicle was able to accelerate to approximately 40 MPH. The contact stated there was no warning light illuminated. The vehicle was driven home and then to a dealer. While at the dealer, the failure was diagnosed as a piston failure. The contact referenced the federal safety agency Campaign Number: 20V746000 (Engine), and the VIN was included in the recall. The contact stated that the vehicle was not repaired under the recall. The contact stated that the dealer provided the test results to the manufacturer. The contact stated that the recall repairs were denied by the manufacturer due to negligent maintenance. The contact stated that he had owned the vehicle for 3-weeks. The manufacturer was not notified of the failure. The approximate failure mileage was 116,000.
I was driving 20 MPH straight down a flat residental street. A loud dash alarm sounded in my 2014 hyundai sonada hybrid. The dash displayed "hybrid system warning, safely stop and do not drive" . Below the warning a yellow caution triangle displayed. I attempted to give the vehicle gas, so I could pull to the side of the road, but the engine acted like it had no power. A blinking green "ready" light was displayed. The eco guide display was moving up and down from the top to bottom. I took my foot off the gas pedal and began braking. The brakes felt mushy and the vehicle was not stopping. Within a few seconds the vehicle shook and was the engine was revving up and down but like it was out of gear. After approximately 10-15 seconds, I lost the power steering and the it was almost impossible to turn the steering wheel. I again tried braking but the brakes just felt mushy and were not stopping the vehicle. I continued coasting down the road and eventually used the emergency brake to stop the vehicle. Once the vehicle was stopped I shut it off and attempted to started the vehicle again. The green "ready" light displayed on the dash as well as the warning lights. The vehicle would turn on but not start again. I put the vehicle in neutral and had several people push me to the curbside. The brakes were very mushy and almost non-existent. I again used the emergency brake to stop it. I notified my local hyundai dealer and advised I would be towing the vehicle to them. I had just came off the freeway and had this happened a few minutes earlier, I would not have been able to get to the shoulder of the freeway. I believe this issue could have caused serious injury or death. It was literally terrifying to lose control of the vehicle the way this occurred. There was no prior warning of an issue and not enough time to react once the warning symbol was displayed.
While in motion going 60mph, vehicle sputtered and then an alarm sounded along with a warning displayed on the drivers side screen stating "hybrid safety warning. Pull over and do not drive." the car would no longer accelerate and came to a stop. Had to restart the car. The same warning happened again the following day while in motion going 50mph. Had to get out of the roadway and restart the car. Hyundai replaced the entire engine under manufacturer warranty (took about 5 months). Upon receiving vehicle back, the same issue happened in the first 10 mins of driving it (issue not fixed). It is back at the hyundai service center awaiting repair.
2 times the engine stalled in the middle of an intersection due to hybrid system failure. A simple fuse for the hybrid system went out and turned off all power. The main issue is that this is a very dangerous design flaw. Other hybrid vehicles have a safety feature that when the hybrid system is not working the gasoline engine will still be in full operation. Everytime the engine light goes on it kills the whole car. I got stuck on an expressway and was put in a dangerous situation when this did not have to happen because they don't have to make the 2 motors completely dependent on each other. Having the gasoline engine continue to run and be able to power the car in a hybrid system failure will save someone's life. I am not sure why this is not a requirement by law to have this safety feature
While driving car system warning came on to" safely stop and do not drive". Was able to pull over and stop car. Could not restart it. Had it towed then changed battery which was low. Tried to restart and did not turn on until 3rd time starting. Let engine run for about 10 min and warning came back on.
I bought my used car september 1 it's a 2014 hyundai sonata hybrid, with a little over 61000 miles on it, I had to evacuate from a hurricane about week after that, when I returned I checked the oil on my car there was no oil showing on the stick the oil light never came on, I took it to the dealership they said engine oil drain bolt washer had crack in it, they put oil in and said everything was fine. I had to go out of town this past week and on the way back I checked the oil it was about a quart and a half low I called the dealership and ask the service manager what type of oil they used was it synthetic or regular oil she went and ask the mechanic she came back and said do not put oil in it because it would void the warranty I ask her how that would void it, she didn't have an answer for me and I got kinda mad cause they would not tell me what oil to put in it, then I drove to the next rest area a checked it again there was no oil on the stick I tried to call the dealership they would never answer the phone I guess they had caller id , so I called a tow truck and took it to the closet hyundai dealership they put it on the rack the under belly was clean there had been no leak, he then took off the oil cap and there was so much sludge build up he said the engine was torched no way it could be fix, I ask way the oil light never came on, he said because of all the sludge in there, he said this should have never been sold
Tl* the contact owns a 2014 hyundai sonata hybrid. While attempting to start the vehicle, the engine failed to start although the lights and radio were activated. The vehicle rolled when placed in gear. The vehicle was taken to hyundai of columbia (1370 nashville hwy, columbia, tn 38401). The dealer could not diagnose a failure and recommended that the battery be changed. The battery was changed, but the failure recurred. The manufacturer was not made aware of the failure. The approximate failure mileage was 36,000.
El carro tryna cuando voy de reversa y cuando estoy an stop el carro tiembla y los brakes ya se los cambie y siempre me hace ruido..
Questions about the 2014 Hyundai Sonata Hybrid engine
Does the 2014 Hyundai Sonata Hybrid have engine problems?
Owners have filed 13 complaints about the engine of the 2014 Hyundai Sonata Hybrid, 46% of all its complaints, more than any other problem.
At what mileage do 2014 Hyundai Sonata Hybrid engine problems start?
The typical (median) mileage in owner complaints is 79,684 miles.
Was there a recall on the 2014 Hyundai Sonata Hybrid engine?
There is no recall for this problem on this model year.
What year does the Hyundai Sonata Hybrid have bad engine?
The Hyundai Sonata Hybrid model years with the most engine complaints are 2016 (76 complaints), 2012 (71 complaints) and 2017 (50 complaints).
Other 2014 Hyundai Sonata Hybrid problems
Brakes 11Electrical 11Seat belts 2Driver assistance 1Fuel system 1Lights 1Steering 1Transmission 1
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