2015 Hyundai Sonata: True Cost, Problems & Verdict
1,144 NHTSA owner complaints · 9 recalls · data-computed verdict. No opinions — public data only.
Editor's note
The sixth-generation Sonata (2011–2014) is the car that brought Hyundai's Theta II engine problem into the open. Connecting-rod bearing failure in the 2.0 and 2.4-litre engines leads to knocking, stalling and, in the worst cases, fire; Hyundai recalled 2011–2014 Sonatas in 2015 and 2017, extended the engine warranty, installed a knock-sensor detection system, and in 2020 paid a civil penalty to the federal regulator over the timing of the recalls. Read the full note on the model page. 2015 specifically: this is one of the years the note above says to approach with care — 1,144 complaints on record, verdict AVOID.
Read the guide
The first-year rule: why the launch year of a new generation is the one to avoid, including 2015 — written and signed by Adir Trabelsi, 2026-09-01.
Owner complaints: 1,144 filed with NHTSA
Complaints per year on the road: 104.0
What owners say
Verbatim reports filed with the United States safety regulator (NHTSA) by owners of this exact model year. Public record.
In March 2026 Hyundai did an emissions update Campaign 9C2. Since that update my 2015 Hyundai Sonata SE has run rough and shifted hard. Hyundai stopped doing the update in May 2026. Hyundai has not provided any update to fix the problem they created. I am worried the update is damaging the motor and transmission of a car that was running just fine prior to the update.
The engine failed due to the known recall defect, dealer confirmed loss of compression in cylinders 2 & 4. I am a federal employee stationed overseas on official duty orders, and Hyundai Motor America is delaying safety recall remedies and buyback negotiations since June 9th.
I bought this car new in 2015, when I was at 97000 miles they had to replace the motor and turbo, I am now at 155844 and they are telling me that basically all 4 cylinders have low compression, cylinder 3 is the worst. They are telling me that this car has to have a new motor. I have not done anything to this vehicle to cause no compression. They want me to pay around 8800.00 to get this fixed.
Recalls: 9 campaigns (6 severe)
| Campaign | Component | Summary |
|---|---|---|
| 17V359000 | Parking Brake:Indicator Light | Hyundai Motor America (Hyundai) is recalling certain 2015-2016 Sonata and Genesis vehicles. In the affected vehicles, the warning light to indicate that the parking brake is applied may intermittently not illuminate in the dash due to corrosion in the switch. |
| 14V784000 | Power Train:Axle Assembly:Axle Shaft | Hyundai Motor America (Hyundai) is recalling certain 1.6 liter model year 2015 Sonata vehicles manufactured August 29, 2014, to October 28, 2014. The affected vehicles may have been assembled with an incorrect left axle shaft which may result in the shaft separating from the transaxle differential. |
| 16V726000 | Visibility:Sun/Moon Roof Assembly | Hyundai Motor America (Hyundai) is recalling certain model year 2015-2016 Sonata Hybrid vehicles manufactured December 8, 2014, to August 18, 2015, and Hyundai Sonata vehicles manufactured May 28, 2014, to March 18, 2016, equipped with the panoramic sunroof option. Due to a bonding issue with the sunroof wind deflector, the sunroof panel on the affected… |
| 14V325000 | Steering | Hyundai Motor Company (Hyundai) is recalling certain model year 2015 Sonata vehicles manufactured May 2, 2014, through May 23, 2014. A poor connection within the vehicle's wiring harness may result in a reduction of steering assist from the vehicle's motor driven power steering system or the inability to move the vehicle's shifter from the Park position. |
| 15V678000 | Electrical System: Instrument Cluster/Panel | Hyundai Motor America (Hyundai) is recalling certain model year 2015-2016 Sonata vehicles manufactured May 28, 2014, to August 21, 2015. The affected vehicles are equipped with an Antilock Braking System (ABS) warning light intended to warn the driver if there is an ABS malfunction. |
| 16V232000 | Air Bags:Frontal | Hyundai Motor Company (Hyundai) is recalling certain model year 2015-2016 Sonata vehicles manufactured May 29, 2014 to February 11, 2016, 2017 Elantra vehicles manufactured January 12, 2016 to February 22, 2016, and one 2016 Sonata Hybrid vehicle manufactured October 15, 2015. In these vehicles, the driver's frontal air bag may be missing a chemical… |
| 14V368000 | Service Brakes, Hydraulic:Foundation Components:Disc:Caliper | Hyundai Motor Company (Hyundai) is recalling certain model year 2015 Sonata vehicles manufactured April 25, 2014, through June 16, 2014. Due to a manufacturing error, one or both of the front brake calipers may fracture. |
| 21V749000 | Exterior Lighting:Turn Signal | Hyundai Motor America (Hyundai) is recalling certain 2015-2017 Sonata, 2016-2017 Sonata Hybrid, and Sonata Plug-In Hybrid vehicles. The Smart Junction Box (SJB) software logic may not properly interpret the signals received from the multifunction switch, which could cause the turn signal to activate in the opposite direction of what the driver intended. |
What it costs to buy — and what owning it really takes
Class-level estimates, priced as a mid-size car of its model year, re-priced to your country. Not a quote, not a valuation of one specific car — condition, mileage and options move it. How these are computed.
What it costs to run
EPA combined 31 MPG · estimated annual fuel cost $2,100
Re-priced automatically from your country's retail fuel, electricity and parts indices — change country in the bar at the top. Estimates; see methodology.
What this car's problems cost to fix
Ranked by the components owners of this exact model year actually complain about. Each figure is flat-rate labour hours x the local shop rate plus a parts band — an estimate of what this kind of failure costs, not a quote, and not a prediction that this car will need it. Formula.
- Engine623 complaints · typical job: Cooling-system or timing-drive repair (6.0 h labour + parts)$1,040–$2,220
- Electrical System167 complaints · typical job: Alternator, battery-drain or body-module diagnosis and replacement (3.0 h labour + parts)$540–$1,310
- Unknown Or Other164 complaints · typical job: Diagnosis and mixed repair (2.0 h labour + parts)$360–$940
- Power Train134 complaints · typical job: Transmission service or clutch-pack repair (7.0 h labour + parts)$1,290–$4,040
- Service Brakes76 complaints · typical job: Pads, rotors and caliper service, both axles (3.0 h labour + parts)$580–$1,140
- Fuel/Propulsion System75 complaints · typical job: Fuel pump or injector replacement (3.5 h labour + parts)$680–$1,620
Other Hyundai Sonata years
FAQ
What is the most common problem with the 2015 Hyundai Sonata?
The most-reported issue in NHTSA complaint data is Engine (623 complaints in our indexed sample).
Is the 2015 Hyundai Sonata a good used car to buy?
Our data verdict is AVOID with a reliability score of 28/100, computed from 1,144 NHTSA complaints and 9 recall campaigns. See the verdict card for the top reasons.
How much does it cost to fix the 2015 Hyundai Sonata's most common problem?
623 of the NHTSA complaints filed against the 2015 Hyundai Sonata sit in the Engine group — more than any other component on this model year. The representative job there is cooling-system or timing-drive repair: about 6.0 hours of labour plus parts, roughly $1,040–$2,220 at a US independent shop and re-priced to your country at the top of the page. It is an estimate of what this class of failure costs, not a quote for this car.
What does a 2015 Hyundai Sonata cost to run per year?
About $6,286 a year in fuel or energy plus the maintenance band — roughly $31,430 over five years, before purchase price, insurance and depreciation. Figures come from available EPA fuel-economy data and industry maintenance averages, and are re-priced to your country.
Does the 2015 Hyundai Sonata have recalls?
Yes — NHTSA lists 9 recall campaign(s) for the 2015 Hyundai Sonata, 6 of them touching fire, crash or stall risk, the most recent recorded 05/06/2017. Check this car's VIN at nhtsa.gov/recalls before you buy.
Compare with
Other midsizes of about the same age.
What will a 2015 Hyundai Sonata really cost YOU per year?
Fuel, maintenance band and depreciation — computed from public data in 10 seconds.
Open the true-cost calculatorData sources
Complaints & recalls: NHTSA ·
Fuel economy: EPA fueleconomy.gov ·
Scoring: our published methodology.
Maintenance bands are industry-average estimates (AAA Your Driving Costs, CarMD index) — labeled estimates, not measurements.
Last updated: 2026-10-04.
Strong evidence — 1,144 complaints, 9 recalls on record
- 1144 NHTSA complaints on record (104.0/yr of exposure) — worse than a typical year of this model (46.5/yr)
- 9 recall campaigns, 6 touching safety-critical systems