• 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 electrical problems
11 complaints (39% of all complaints for this car). Typical mileage when it fails: 79,684.
- owner complaints
- 11
- of this car's complaints
- 39%
- typical mileage
- 79,684
- crashes
- 0
- recalls
- 0
Which part fails
- Propulsion system: traction battery1
At what mileage
Complaints by mileage at the time of the problem.
Hyundai Sonata Hybrid electrical problems in other years
Related recalls
No recalls on record for this model year.
Related investigations
Pedestrian alert sounds
the federal safety agency received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, the federal safety agency opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified the federal safety agency he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by the federal safety agency regarding the subject matter of the petition.
DP22005
Non-crash Vehicle Fires
During this Preliminary Evaluation (PE), the Office of Defects Investigation (ODI) assessed the scope, frequency and potential safety-related consequences of non-crash vehicle fires caused by both engine failures and failures of other vehicle systems/components in model year (MY) 2011-2014 Hyundai Sonata and Santa Fe vehicles equipped with Theta II and Lambda II engines (approximately 1.3 million vehicles). ODI also reviewed field data of other Hyundai vehicles equipped with Theta II, Gamma, Nu and Lambda engines (approximately 4.8 million). As a result of this PE, Hyundai has issued the federal safety agency Recalls 20V‑746 and 21V‑727 to address potential engine failures and fires in certain Hyundai vehicles equipped with various engine types. Additional information on these and other related recall actions is available in the downloadable version of this resume available at In addition, ODI has upgraded this PE to an Engineering Analysis (EA) 21-003 which will focus on potential recall scope concerns and recall remedy concerns related to the engine failure rewlated recalls mentioned above and conducted previously. See the EA21-003 Opening Resume available at for more information. Also available in the downloadable version of this resume is a list of the reference numbers for the 302 ODI reports, or Vehicle Owner Questionnaires (VOQs), cited above which ODI received through mid-November 2021. Note that the Manufacturer reports cited above are customer complaints received through March 2019.
PE19003
Non-crash Vehicle Fires
In a letter dated June 11, 2018, the Center for Auto Safety (CAS) petitioned the federal safety agency to initiate a safety defect investigation into non-collision related fires on model year (MY) 2011-2014 Kia Optima and Sorento, and Hyundai Sonata and Santa Fe vehicles. In a letter dated July 24, 2018, CAS requested that MY 2010-2015 Kia Soul vehicles be added to the petition. CAS stated that there is a higher number of complaints to the federal safety agency regarding non-crash fires on these vehicles compared to other similar vehicles. The Office of Defects Investigation (ODI) had already opened Recall Queries (RQ17-003 and RQ17-004) on all Kia and Hyundai vehicles equipped with Theta II engines for engine failures that may cause stalling and fires.The queries cover most of the petition subject Optima, Sorento, Sonata, and Santa Fe vehicles but not any of the subject Soul vehicles.On August 21, 2018, ODI opened a Defect Petition (DP18-003) to evaluate whether to grant or deny the CAS petition. ODI sent Information Request letters to Kia and Hyundai (September and October 2018) requesting information on all engine and non-engine related fires in the petition vehicles.ODI performed extensive analysis on the information obtained from Kia and Hyundai. During the DP18-003 analysis, Kia and Hyundai each initiated three additional safety recalls related to engine compartment fires on certain petitioned and non-petitioned vehicles (nearly 740,000 total vehicles: Recalls 18V‑907, 18V‑934, 19V‑101, 19V‑063, 19V‑120, and 19V‑204). Based on ODI?s review of the applicable materials, including responses to Information Requests sent to multiple manufacturers, Vehicle Owner Questionnaires (VOQ), and Early Warning Data, the federal safety agency decided to grant the petition.The CAS petition was granted on March 29, 2019. Preliminary Evaluations (PE19-003 on Hyundai and PE19-004 on Kia) have been opened to assess the scope, frequency, and potential safety-related consequences of alleged defects relating to non-collision vehicle fires in the 2011-2014 Kia Optima and Sorento, 2011-2014 Hyundai Sonata and Santa Fe, and 2010-2015 Kia Soul.Attached is a list of the reference numbers for the 404 VOQs cited above.
DP18003
What 2014 Hyundai Sonata Hybrid owners say
Most recent owner complaints, unedited.
Hybrid system warning. Safely drop don’t drive. It comes and goes for all hybrids it has the issue
The contact owns a 2014 Hyundai Sonata Hybrid. The contact received notification of the federal safety agency Campaign Number: 23V651000 (Service Brakes, Hydraulic). The contact stated that while driving approximately 30 MPH, the vehicle stalled. The vehicle was not able to be restarted. The vehicle was towed to an independent dealer where it was diagnosed and determined that the battery fuse needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.
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 vehicle in motion, car just stop oversudan with a spoken message: " hybrid cells vehicle is in danger. Car will stop"and after this messgae, car stalls with no control on the breaks and steringwheel.
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.
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.
Hybrid system warning has come on four times, car shuts off instantly, then the engine light comes on. The first time was on a city street, the second time was a the dealership when picking up the car after repair, the three time was in a parking lot, and the fourth time was on the interstate in heavy traffic. Car is not safe. Asked for a replacement with no resolution.
2014 hyundai sonata hybrid was parked overnight in a garage. Early in the morning of november 24, 2014 it caught fire resulting in total loss of the vehicle and the home. The occupants were able to escape the home without injury.
Questions about the 2014 Hyundai Sonata Hybrid electrical
Does the 2014 Hyundai Sonata Hybrid have electrical problems?
Owners have filed 11 complaints about the electrical of the 2014 Hyundai Sonata Hybrid, 39% of all its complaints.
At what mileage do 2014 Hyundai Sonata Hybrid electrical problems start?
The typical (median) mileage in owner complaints is 79,684 miles.
Was there a recall on the 2014 Hyundai Sonata Hybrid electrical?
There is no recall for this problem on this model year.
What year does the Hyundai Sonata Hybrid have the most electrical problems?
The Hyundai Sonata Hybrid model years with the most electrical complaints are 2016 (36 complaints), 2021 (25 complaints) and 2013 (24 complaints).
Other 2014 Hyundai Sonata Hybrid problems
Engine 13Brakes 11Seat belts 2Driver assistance 1Fuel system 1Lights 1Steering 1Transmission 1
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