2015 Hyundai Elantra

Engine stalled while going at-speed on major highway; high risk of crash if not restarted in time. Continuous repeating stalls. Hyundai inspected car twice; failed to fix the problem on the first attempt, refused to replace engine alleging that maintenance was negligent due to residue inside motor. Hyundai did not report any residue on the first inspection, and likely did not inspect engine thoroughly when stalling was initially reported to their mechanics. Odd noises from engine present for months prior to stalling.

When you go to stop at a stop.sihn or in general it fails to do so. It locks up an I slide an almost hit people multiple times. Today I was backing out of a parking lot an when I went to turn my steering wheel straight it locked up an failed to let me counter steer it. Causing me to go over a curb an almost blow my tire out. Leaving my tire with a big bubble on the side of my tire. Eventually going to lead to a blow out.

The rear brake lines are corroded where the lines come into contact with the plastic hangers that keep the lines in place under the car. Due to this issue I lost brake pressure while driving the car. This happened in a parking lot, but my safety and the safety of many others would have been at risk had this happened on the highway while driving at speed and if I needed to brake suddenly to slow down. I have not had the brake lines inspected at the dealer, but I have them in case they are needed. Hyundai recently sent a service campaign letter to me regarding underbody corrosion prevention service for cars in the states that use salt on the road. I feel Hyundai is being negligent in not extending this service to include replacing parts of the underbody, such as the brake lines, that are required for the normal and safe operation of the vehicle. Due to their lack of underbody corrosion prevention that should have been in place when the car was manufactured my safety was put at great risk and I now have to replace the brake lines at my own cost. I feel Hyundai know that their brake lines will rust and corrode due to salt usage, and their underbody campaign is not addressing these problems which could result in owners having a serious accident.

Purchased car used with 60k mileage. Within 3 months notice car making a metal scrubbing noise and excessive shaking in in mornings when first started and cold but if car was warm no scrubbing sound and minor shaking. Took it to hyundai dealer to have checked was told they didnt hear the scrubbing and vibrating, I assumed they checked while car was warm. Continue to have same problem for about 2 years as well as car acceleration rapidly declining and skipping on acceleration.Suspected piston slap after reading description of many others having same problem as issue identical to mine, I recieved notification in mail however it stated I must be located in cold weather state and although my state does have cold winters, it wasnt included on the list so assumed I couldnt take part in the investigation or extended warranty. Now car is having a lot more acceleration decline and yesterday, was traveling about 60mph on interstate and without warning, car just cut off and steering wheel became stiff, I through gear into neutral and turn ignition and car cranked right back up and continued driving for another 20 min, then car rested for about an hour. Then I was returning home and was going about 35 to 40 mph and it done the exact same thing again, engine cut off without warning steering wheel went stiff and I had to put in neutral and car crunk right back up. I'm almost 100% certain my engine is one of the defective engines and I'm going to auto store to have codes read now but I dont know how to have hyundai fix my defective engine and I fear I could end up injured because of it

Transmission completely went out at 86k miles with no warning. No lights on the dash, no slow build of issues. Has always had regular maintenance since I bought the car at the dealership. Second owner, and car is paid off. Drove it one day with absolutely no issues, and the very next day, all gears were slipping and was not safely drivable. Was stopped at a stop light turning into work and when I put my foot on the accelerator, it went nowhere and I was stuck at intersection. Got it towed that day to a local repair shop since I was told my warranty for power train was expired, and have been waiting on a new transmission for 2 months now. The repair shop still doesn’t know when they’ll get it in, and will cost $4k to install. Mine is one of many they’ve said have come through with the same problem.

On February 17, 2023, my vehicle was broken into and damaged because thieves tried to highjack the car using a now common method of the end of a USB cable in the ignition. The passenger rear window, the steering column, and the key ignition were all damaged, and I had my vehicle towed to a Hyundai dealership. Nearly all 2011-2021 Kia and Hyundai vehicles are made easy to operate without a key, to steal, and to vandalize. This security vulnerability has resulted in Kia and Hyundai owners paying for repairs (even with insurance, owners need to pay the deductible) and higher insurance premiums. Hyundai and Kia did not disclose this defect, which is a material fact, and a fact that a reasonable person would rely on when purchasing a vehicle, consequently making these vehicles easy to steal, unsafe, and worth less than they should be. The service writer at the dealership informed me that it could take 30-45 days to get the parts since this type of vandalism has increased significantly over the last six months. It has become well-known that these thefts are due to security flaws (re: failure to implement standard security measures and install anti-theft devices) in Kia and Hyundai vehicles, leaving them notably susceptible to theft. Kia and Hyundai owners, including myself, are left with limited time use of rental cars during repairs, oftentimes because of the delay in the delivery of parts. This situation also leaves Kia and Hyundai owners with higher insurance rates (or being simply denied of obtaining insurance) because of these vehicles.

The contact owns a 2015 Hyundai Elantra. The contact stated while driving approximately 35 MPH, she heard a knocking sound coming from the engine compartment. The contact stated no warning light was illuminated. The contact stated that the noise was intermittent at first but had become almost constant and would occur at various speeds. The contact stated that she recently saw white smoke coming from the exhaust pipe. Additionally, the engine was revving high when started in the morning. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle had not been repaired. The contact researched online and related the failure to NHTSA Campaign Number: 17V226000 (Engine and Engine Cooling). The manufacturer had not been informed of the failure. The failure mileage was approximately 112,000.