While driving and using the accelerator, the RPM would rev up but the car would not move. The car would then jerk back and forth. Only able to go approximately 10 miles per hour, but the RPM would go as high as 6K or 7K RPM. Dangerous to drive. When idle, also felt RPM go up and jerking motion

- Overland Park , KS, USA

When driving, an acceleration would sometime cause the car's RPMs would drop to zero with the throttle of the vehicle responding poorly. A lose of power occurs and the takes about 15 seconds to feel some power return to the throttle. The feeling of no throttle occurs which is very scary when your reason for accelerating is to pass a vehicle but the sudden lose of power makes it difficult to accelerate properly to pass. The RPMs remains none responsive. With the loss of power, the traction control light came on. When the vehicle is turn off and turned back on, the car's issue disappears. But the problem randomly occurs again.

- Skokie, IL, USA

We were part of the Hyundai Theta claim group. Our car did stop in traffic, luckily my husband was alone, and no one was hurt. It was towed to the dealer. This was October2023. Dealer gave a list of fixes & stated it had nothing to do with theta. We had all recommended maintenance done; as we always do. Roughly 2 months later, Dec., with a full car, it did it again, at a stoplight. We are lucky to be alive. We had it towed to our mechanic. I contacted the Theta claims line. Our mechanic stated oil was still in the filter, but the pistons had blown clear through the engine, which he still has. Hyundai contacted him. He sent pictures. Hyundai denied my claim for timely filing. I have called weekly, followed every instruction. Now they want me to mail a letter. I am a disabled veteran. Look how many recalls they have. They don't mind recalling. They will just deny people. Please help.

- Wesley Chapel, FL, USA

The contact owns a 2013 Hyundai Sonata. The contact stated while driving 80 MPH, the vehicle lost motive power with the accelerator pedal being depressed. The contact stated that the vehicle decelerated to 30 MPH. There were no warning lights illuminated. The vehicle was taken to the dealer where it was diagnosed with a greasy taillight bulb, and then later diagnosed with starter failure. The vehicle was repaired; however, the failure persisted. Additionally, the contact stated that four years earlier the engine was replaced due to metal shavings being found in the engine. The manufacturer was not made aware of the failure. The approximate failure mileage was 79,000.

- Sherman, TX, USA

My 2013 Hyundai Sonata lost acceleration power while on the road requiring an emergency departure from the road and it fails to acceleration beyond. Placed vehicle in park and attempted to proceed home but was only able to drive 5 to 10 mph max creating a dangerous situation for my fellow commuters and myselt. After about a few block I let the vehicle cool down and attempted to proceed home. The car would only go up to 5 mph requiring me to avoid rear end collisions. Ultimately, requiring a tow vehicle to bring it home. Our neighbor indicated it is the MAP sensor which was changes with no improvement to the car's acceleration issues. Checked all the fluids and assured they were correct. This vehicle has place me and others in a dangerous and potentially fatal situations.

- San Antonio, TX, USA

The main power relay for the hybrid battery shorted out causing the safety plug to also short out. I was driving down the road in a rural location and an error message came up on the screen saying hybrid system error, pull over immediately, and the car would not restart after I pulled over. The car was towed to the dealer and the dealer said that the power relay and the safety plug were shorted out. The main issue that I have is that the hybrid system warning light has come on multiple times and the car had to be towed to the dealership. They always said it was a software problem. The hybrid system warning pull over light first occurred 5 or 6 years ago.

- Wilmington , NC, USA

Car has been knocking for a couple of months now, check engine started flashing and it lost acceleration. Towed to shop and code for knock sensor was reading bad. Shop replaced knock sensor, I picked car up and drove away and it happened again. Engine light flashing and lost acceleration, took back to shop and the next day which would be today they said take to the dealer cause it's still reading for knock sensor. My 2013 hyundai sonata 2.0 is now at the dealership in line with the rest of the seized engines. So I have spent $800 ($613 for shop and $200 rental car) and my car is still not drivable. Now I'm back in a rental at$300 a week until hyundai diagnose, test, and approve the process of fixing the issue with my 2013 hyundai sonata 2.0, it has a life time warranty! This will be the second 2013 hyundai sonata I have owned with the engine seizing up! Back in Nov. 2021 I went thru this very same thing!

- Kennesaw, GA, USA

Was losing power while driving, oil consumption issues (had to add oil every 1000 miles). Engine started knocking and went into limp mode, had it towed to dealership where they said they fixed it ($1100). Less then a week later while driving on the highway lost lower, went into limp mode (89 mph to 15 mph in seconds) and was almost hit by a semi truck. Car has been sitting at the dealership since May 2022, they said I need a new engine but Hyundai declined.

- Portage, IN, USA

2013 sonata. Constant oil consumption. Had replaced the oil pan and piston, oil caps, pvc valve. Car stalled twice and kept getting check engine lights popping up. Turns out the engine is defective and needs to be replaced. The car is starting at my mechanic right now and trying to figure out how to get it to Hyundai dealer so the engine can be replaced. the car is unsafe to drive right now. my son has the car.

- Port Jefferson, NY, USA

We were travelling from Minnesota to Arkansas to see our family for thanks giving on 11/24/2022. Car engine starts blinking and engine started to make rattling noise. Took exit and pull over our car in one of the gas station. It was closed, this was our first road trip and first time in Iowa. Called insurance and towed our car to O'reaily auto part. They found out the error code p1326 which is related to engine issue. Looked for nearby Hyundai dealership and booked hotel near them. We went to Hyundai dealer at 7:00am on Friday 11/25/2022. We told them what happened. They told us they will check in our car. We waited from 7am to 1:30pm our car was still outside. At 2pm service manager came and said they cant check our car. We booked rental car ourselves and decided to come back home. We forgot our apartment key went back to get it and they had already started to diagnose our car thinking we are gone. Service guy told me that's engine failure every Hyundai is facing now. My car have 61k miles on it and I bought it in 2020 from Hyundai dealership. I still have 9k loan to pay this car and i cannot afford new car or new engine. I do not have car now and they are saying it can take months to repair my car if it gets approved for engine replacement. Hyundai is playing with my life and put me in depression. I have no option other than to cry. I am feeling so helpless now. Nothing and nobody seems helpful. I try my best to do anything i can and i am just waiting for coming Monday for Hyundai to make excuse to not fix my car. Hyundai is playing with lots of people life. This might be small for them but not for a working people like us. My life is messed up because of them. I cannot sleep at night and I have been calling everywhere if I can get help.

- Saint Cloud, MN, USA

While driving car started beeping and making noises - check engine light, brake light, lcd displayed brake warning and flashed "hybrid system warning! safely stop and do not drive". Brake pedal then went to floor, and engine power reduced. Re-starting the car only cleared the problem for a minute before the warning message re-occurs. Others have encountered this issue resulting in crashes. https://also reported here: https://www.carcomplaints.com/Hyundai/Sonata/2013/brakes/service_brakes.shtml

- Apex, NC, USA

My car has been having issues for the last 3 years and dealership replaced the water pump 2 years ago. Went back to the dealership for engine issues like hesitation and stalling several times and they said they can-??t find an issue, they adjust the brake light switch one time as they said they had the code for it, but the car still has the hesitation and stalling issue which they wanted to charge me again for a diagnosis. I looked up online and there are actually recalls for the engine connecting Rod and probably these recalls were cleared by the dealership from my previous visits but I can assure that the engine was not replaced nor the fuel system was not inspected at that time.

- Fremont, CA, USA

My car seized up a lot, like pushing forward, then all together stopped and went into only going up to 40mph. I just hot the car 10 months ago so it shouldn't have done that. Took it to a repair shop and they said the engine was on it's last legs even though I literally just got the car.

- Belleville, IL, USA

The contact owns a 2013 Hyundai Sonata. The contact stated that upon placing the vehicle into the (R) reverse position; the vehicle independently accelerated backward into her neighbor's driveway and hit two parked vehicles. The vehicle came to a stop when it crashed into the second vehicle and that second parked vehicle was deemed destroyed. The air bags did not deploy upon impact. No injuries were reported and a police report was filed. The contact was able to drive the vehicle back across the street and parked the vehicle on the road. The dealer was notified of the failure and informed her that since her vehicle was involved in an assurance claim, they could not render any assistance. The manufacturer was also notified of the failure and informed her that an investigation could not be performed unless she signed a waiver. The vehicle had yet to be repaired and remained in the possession of the contact. The failure mileage was 76,876.

- Palmdale, CA, USA

Ref: NHTA Recall Number: 20V-746 Hyundai REcall Number:198 (2nd recall fix ) After the above recall fix we had informed the Hyundai about engine heating up, we were told this is false alarm and car has monitoring system recall issue, Recall would would be mailed. I have all the dealer bill to prove the engine was heating up, they replaced certain part at our expense ( bill attached ) After above recall Fix by Hyundai Dealer in San Leandro, CA. we had engine overheating and car started engine started vibrating & I could see smoke from the exhaust. it ceased in the middle of the highway. Please note: Our Car has been services by Hyundai dealer. Note: if you look at the second safety recall notice, It does state in safety notice about engine compartments fire while driving for many reason and depending on the severity of the fire. the identification of the cause can be untraceable.. Above incidence happened just after your dealer did 2nd recall fix. IMO - It proves that recall fix was faulty and overheating engine cause the engine blew-up. Car has been with the dealership repair for 3rd recall. since a month Hyundai dealer asking us $9K to fix the car. I have reported the incidence to Hyundai Corporate under the case # 18811202. They are not responding. Dealer did contact Hyundai Corporate to get the engine change request, either the request if denied or gone unanswered.

- Fremont, Ca, CA, USA

After making a knocking noise for a few miles, the engine seized and the car completely stalled. I had to coast through traffic to stop on the side of the road. Would not start again. I towed the car to service department of Hyundai dealer in Lindon, Utah, who diagnosed a seized engine and is now assessing the seized engine for warranty coverage under the premature bearing wear recall.

- Heber City, UT, USA

Check engine light began flashing and my 2013 Hyundai Sonata went into "limp" mode whiIe my wife was driving on the interstate. In "limp" mode it made it difficult and dangerous for her to exit the highway nearly being involved in a crash. She then "Limped" her way home. I checked the code with a diagnostic tool and a P1326 Knock Sensor Detection System code was returned. We took the vehicle to our local Hyundai dealer who reports the engine needs replaced which is part of Hyundai's recall/ campaign 17V226000. After the dealer trying on our behalf for several weeks to have the manufacturer replace the engine, the manufacturer now refuses to replace it. This is the second Hyundai I've had the engine fail on. The first one in a 2014 Sante Fe, the motor completely locked up. So what am I to do drive this one till the motor locks up on it? I dont think so!!! HELP

- Beaver Springs, PA, USA

1. Car was parked at a rest stop, on a hot day, and idling in "PARK" with air conditioner on. One passenger was in the car in the front passenger seat. No one was in the drivers seat. The driver of the car was about 20 feet away and making a phone call to make hotel reservations. After about 10 minutes, the car suddenly started moving in reverse, while the passenger was sitting in the passenger seat. The passenger was alarmed by this movement and tried to get out of the car on the passenger side and opened the car door. The passenger then fell to the ground and avoided the door opening, but the front wheel of the car ran over her lower right arm, breaking the large bone in the arm and causing multiple lacerations. The car proceeded in reverse, finally coming to a stop against a small hill about 100 feet away. The passenger was rushed to a hospital and received emergency care.

- Bensalem, PA, USA

Ikus bought car 3 weeks ago 11000 dollars was comming home was turning left in my neighborhood an motor died I could barley turn wheel was almost hit by a semi truck doing 50 mph an then almost wrecked I zcoudnt turn wheel back straight because no power because engine failure I coudve died or someone who didnt havee same stremgh to turn wheel im poor now poorer car payment no car

- Galloway, OH, USA

I was driving and my 10 year old daughter was with me in the car. When car was changing gear it started shaking violently, although my daughter was restrained she hit her head and hands on the inside of the rear door. Afterwards every time car changed the gear it was jerking, shaking, behaving in unexpected manner that further driving was very dangerous. I was able to reach my home but I am very scared to drive that car again. I read the code that came up on dashboard P0711, turns out transmission oil temperature sensor and harness malfunctioned and that led to violent and rough shifting. Called dealer, they want $700 for a repair and my car is out of warranty. Checked internet and it's full of stories how this is a huge problem with Hyundai cars. It turns Hyundai modified the part since then and never recalled it, they have tsb 14-at-010. How come manufacturer put faulty part that compromises safety of the vehicle and they want huge chunk of money to fix it" why didn't they recall it" definitely going to court with this.

- Brooklyn, NY, USA