2023 HYUNDAI ELANTRA Complaints

While driving through heavy rain on the interstate Friday night the CEL came on and the vehicle immediately lost power and went I to a limo mode causing my car to rapidly lose speed while on the interstate. Restarting the vehicle did nothing. I called the closest Hyundai dealer and they said " oh yeah the N models do that a lot in the rain or through carwashes, it triggers false knock sensor codes, you can try to get a parts store to clear the code or you can come in tomorrow and we will clear the code." I then got a parts store to clear the code and the vehicle has been fine since. I did a quick internet search and apparently this is very common and lots of owners have this happened multiple times a year and the dealer has no fix or intention of a fix

My car has done 4 false automatic emergency braking incidents while I was on the freeway (all times). There was no vehicle in front of me or the sides and my car started applying emergency brakes with a message pop up on the digital dashboard. Looks like the system is falsely detecting there is a car in close proximity. When this happened, I noticed the back car hit the brakes and immediately switch lanes. The sudden brake could cause a collision. The car allows me to take control after a couple seconds but when the warning appears I can not. I have not reproduced or verified the case with a dealer but the instant has happen 3 times in the past month. It has not been inspected by any other parties.

Driving on a highway at 80mph, adaptive cruise control was engaged. It was a clear, sunny day, around 55 degrees F outside. We were 3.5 hours into a 4 hour drive. There were no cars in front of the vehicle. There were other cars in the lanes immediately to both the left and right of us, as well as a car behind us. The car gave a warning for Automatic Emergency Braking, although there was nothing to avoid. No vehicles were merging into us, no one was going to rear end us, and nothing was in front of us in or near our lane. The car then started braking automatically and attempting to swerve/turn automatically. I had to fight the automatic system to stay in our lane and not crash into the vehicles immediately to the left and right. This was extremely dangerous at highway speeds.

Small crack in windshield caused by a twig less than 4 inches long with a diameter smaller than the width of. Finger. Another small crack in windshield. Do not know how it occurred Contacted local windshield repair business and was advised, per manufacturer they only replace the windshield. Looked online and see that the windshield issue is a known defect. I have an elderly father that lives in North Carolina and I’m gonna have to replace my glass because I don’t want another twig to fall in and burst out my entire windshield when I’m driving down the highway

Vehicles electronic key fobs and Bluelink become deactivated every 12 hours after vehicle is parked. Had vehicle since June 2023 and this has happened 163 times. Dealerships cannot recreate the issue and vehicle battery tests reflect no issues. To start the vehicle, car has to be manually unlocked and 12V battery reset. The vehicles security features become deactivated during the lapse in battery/electronic functions.

on my new car my backup camera has gone out in less than 7000 miles, and from what i have seen is a known defect that the Hyundai line of vehicles have and i want to make it more know of the defunct camera they are selling.

The contact owns a 2023 Hyundai Elantra. The contact stated that while driving 55 MPH and above, the RPM fluctuated, and the engine revved loudly. The transmission then seized in 5th gear, and the vehicle lost motive power. No warning light was illuminated. Additionally, the failure recurred while driving at 65–70 MPH with the cruise control activated. The vehicle was towed to the dealer; however, the dealer was unable to duplicate the failure. The failure persisted, and the vehicle made an abnormally loud sound while the transmission was shifted into park (P). The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 20,600.

My car has 11000 miles. 6 times I have had the emergency braking come on when there have been no cars close to me (4 times by 3500 miles and twice from 3500-11000). One time no other cars even in sight. I have been on the freeway and on side streets, so from 20 mph to 65-70 mph. It is startling and I'm afraid will cause me to get rear ended as it's instinctive to step on brake when this happens. I mentioned this to the dealer I purchased it from at my 3500 and 11000 mile oil changes and they said they couldn't reproduce it and everything was fine. It's only happened 6 times in 11000 miles so it is unlikely the dealer will be able to reproduce. But especially going freeway speeds it is not safe to slam on breaks for no reason and I am afraid of getting rear ended. I was looking online to see if this problem had been reported and someone with the same issue was recommended to report it to this site, so I am doing the same. Thank you.

The vehicle's horn has completely stop working as of [XXX]. I took the vehicle to a toyota dealership because the Hyundai dealerships did not have any available appointments at the time. The Toyota dealership in Ardmore looked at the vehicle to see if there were any issues with fuses and wires. They were unable to find any issues. The dealership recommended I contact Hyundai. I then arranged for an appointment from Hyundai. Several days before the appointment, I was contacted by Conicelli Hyundai. They told me they are not taking any new bookings. I put a bad review on Conicelli's google review. I received a message from Conicelli's customer service department askimg me to call back. I called them back and was told that the service manager will call me back. The service manager called back and I explained that the horn is not working. The service manager told me that they just replaced a horn on someone elses car. He also related that the item is on back order. When I did some google searches for horn issues, I began to see that this is a national problem with their horn failures on various vehicles among different years. I have not driven the car since the horn failure. I believe the horn is on back order because Hyundai is having so many problems with their horn. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My vehicle usually would turn on the warning light stating that the engine oil level is low when I accelerate. The last time I had an oil change, it would turn on when I accelerate my vehicle to merge on the highway. I have had my engine oil level sensor changed out in my vehicle by a Hyundai tech. Immediately after my sensor was changed and I merged on to the nearest highway, it went on again when I increased speed. My vehicle has been inspected by a Hyundai dealer but it could not be fixed. This does not happen when you are at a consistent speed but rather when the car needs to accelerate.