2017 Hyundai Sonata fuel, hybrid & EV propulsion problems

Related recalls

No recalls on file.

What owners say

1. Filed Jul 21, 2026TXElectrical SystemEngineFuel, Hybrid & EV Propulsion

   I am writing to report a direct violation of the Theta II Class Action Settlement terms by Hyundai Motor America. This morning , I emailed an Executive Case Manager explicitly explaining that my 2017 Sonata has an active P1326 code, has the 2019 KSDS update, and requires a mandatory diagnostic under NHTSA Recall 17V226 that cannot be denied due to a salvage title. Instead of replying to my facts, the Case Manager Kathy gave me a hard denial falsely framing my federal recall…

   NHTSA complaint #11751813 · source
2. Filed May 31, 2026UTElectrical SystemEngineFuel, Hybrid & EV Propulsion

   Supplemental Information to Existing NHTSA Complaint involving a 2017 Hyundai Sonata Plug-in Hybrid (VIN: [XXX] ) While traveling at approximately 70 MPH on a heavily traveled highway, the vehicle suddenly and completely lost propulsion without warning. The vehicle rapidly decelerated in traffic, creating a significant safety hazard for my family and surrounding motorists and requiring emergency maneuvering to reach the shoulder. The vehicle was towed to an authorized…

   NHTSA complaint #11741174 · source
3. Filed Sep 18, 2025PREngineFuel, Hybrid & EV PropulsionSuspension

   To whom it may concern, I have own my vehicle since Jan 2018, which was purchased from the dealership's owner w/less than 10k miles. Maintenance has been performed iaw Hyundai's recommended schedule. However, yesterday, I was informed that my vehicle needed a new engine and other replacements totaling $13,934.89. This is OUTRAGEOUS. How can a well kept vehicle w/106445 miles, need such replacements? Thus your assistance will be greatly appreciated.

   NHTSA complaint #11688064 · source
4. Filed Aug 19, 2025AZEngineFuel, Hybrid & EV Propulsion

   My 2017 Hyundai Sonata Limited check engine light came on at approximately 103,000 miles of use. This happened last week. The code it was pointing to was a faulty Fuel Pressure Sensor. Could also be combined with faulty fuel pump, but the primary code indicates the sensor. I will be taking it in to the Hyundai dealership shortly. The main reason I’m reporting this is because of my previous experience owning a 2011 Hyundai Santa Fe that had to have the engine replaced three…

   NHTSA complaint #11681665 · source
5. Filed Jul 31, 2025LAElectrical SystemFuel, Hybrid & EV PropulsionOther / Unknown

   My Hyundai consumes oil and I have to put oil in it every two weeks! Also my ignition coils has had to be changed 4 times. Also check engine light just came on code saying catalytic converter or oxygen sensor changed oxygen sensor a couple months ago. I purchased it brand new and as soon as I got over 100,000 miles nothing has been going good since then please help also my paint on the top of the car is starting to peel. Will never buy a Hyundai again.

   NHTSA complaint #11677661 · source
6. Filed Jan 11, 2025TXElectrical SystemFuel, Hybrid & EV PropulsionOther / Unknown

   Hello! I bought a car in the USA, I live in another country. Errors that appear in the car are similar to these: [XXX] Еrror appears then, the cogd I give more gas and let go of the pedal. When the engine is heated at different speeds. The scanner showed these errors: P1326 Ignition Control Module - Combustion Quality Input Signal; U0293 Lost Communication With Hybrid Powertrain Control Module; U1004; B2AAA. But the electricians do not know what the reason is and no one can…

   NHTSA complaint #11635442 · source
7. Filed Oct 26, 2024OHEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   I have had many problems with my car since 1st day of purchase timing belt oilpans valve cover gasket burning excessive oil caliper brake hose last few events I have experienced my ABS light coming on in the car stop moving while am in traffic very dangerous I work for the hospice reserve one day while driving the car started shaking compulsive and the check engine light came on I was informed oil was leaking onto my spark plug and engine was going out I experienced extreme…

   NHTSA complaint #11622064 · source
8. Filed Jun 10, 2024AZEngineFuel, Hybrid & EV Propulsion

   I was driving down the freeway when my engine made a loud knocking noise, the noise got worse as the RPMs increased. The check engine light began to flash and I lost power, the vehicle will not exceed 60mph and vibrates when moving down the road. I believe this issue is widely know about and should be addressed and forced into a recall. I have maintained the vehicle and should not be responsible for a manufacturing error.

   NHTSA complaint #11593577 · source
9. Filed Apr 28, 2024VAEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   While driving on a highway at ~60 mph, the check engine light came on (plus other indicator lights) and the car immediately dropped to ~45 mph. ~20 seconds later, while trying to pull into a school parking lot, the hybrid system fault warning came on and the car dropped to ~5-10 mph and then became extremely difficult to control. The car was towed ~80 miles to my home dealership and it was diagnosed as a partially blocked EGR tube. ~1 month later, on the next longer drive I…

   NHTSA complaint #11585677 · source
10. Filed Jan 24, 2024CAEngineFuel, Hybrid & EV Propulsion

    I'm reporting the growing concern of my engine having rod knock or seizing . It has been burning excessive oil since I bought it at 80k miles. I have reached out to hyundai and they have denied me any help as the vehicle is past their 10y/100k mile warranty. Although my vehicle has extended warranty up to 150k miles for engine seize or rod bearing failure through them. There's no warning lamp but the piston slap noise is getting louder, I'm scared this problem might leave my…

    NHTSA complaint #11567578 · source
11. Filed Jan 24, 2024NJEngineFuel, Hybrid & EV Propulsion

    During travel on highway (~60 MPH), the vehicle suddenly lost power and the engine stopped functioning properly. The effect of the problem was that the vehicle began to 'buck' - as if the engine was having significant trouble running continuously. The engine light then illuminated solidly (not blinking). The vehicle slowed from lack of power and I was forced to move to the right lane/break-down lane through high speed highway traffic (NJ). I was able to travel /limp a few…

    NHTSA complaint #11567481 · source
12. Filed Jan 12, 2024ORFuel, Hybrid & EV Propulsion

    High pressure fuel pump defective. Code p016b. Dealer replaced high pressure pump, gasket, bolt. Sonata has 43265 miles and 80 months.

    NHTSA complaint #11565133 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology