2023 Hyundai Elantra Hybrid Driver assistance Problems

I was performing a low-speed maneuver to reverse-park into my driveway. After making a right turn between my driveway and the driveway of a neighboring townhouse across the street, I came to a complete stop. When I shifted the vehicle into reverse, the vehicle did not reverse as expected and instead unexpectedly accelerated forward. I applied the brake but was unable to stop the vehicle before it traveled forward into the driveway across the street and struck the garage door of a neighboring townhouse. The maneuver was being performed at low speed. Weather conditions were clear, and the driveway surface was dry. The cause of the unexpected acceleration is unknown at this time. No warning lights, messages, or alerts were observed prior to or during the incident. Immediately following the collision, I placed the vehicle into park and applied the parking brake, at which point the vehicle came to rest. Upon impact, the driver-side front airbag deployed. Smoke and a burning odor were observed coming from the deployed airbag. The incident posed a safety risk due to the vehicle’s unexpected forward movement during a low-speed maneuver and resulted in property damage. No injuries were reported. The vehicle remains available for inspection.

NHTSA ID

11708433

Incident

Dec 23, 2025

The cruise control function ceased to properly function after automatically increasing the speed to 110 mph. The vehicle is available for inspection upon request. This is a safety risk for myself and for others on the road. If another combination with this fault were to occur (either physically to the driver or to the software), this could lead to an extreme hazard due to the potential for excessive speeds. The first occurrence for this vehicle happened on 4/21/2025; however, additional instances have been reported going back at least a year for other owners of this same model. Initial issue occurred while setting cruise control from 45 mph to 35 mph and then back to 45 mph. The last instance of 45 mph is when the cruise control quickly increased the set speed to 110 mph. The set speed could not be reduced after the issue occurred. This issue is difficult to reproduce, but will always occur after the first instance until the vehicle is restarted. The vehicle has not yet been inspected by the manufacturer. This is a known issue that has occurred for more than a year now. It appears to not be addressed due to the lack of reproducibility. However, when the software issue happens, it is continually reproducible until the vehicle is restarted. No other warning lamps or erroneous events occurred at the time of the software malfunction.

NHTSA ID

11655984

Incident

Apr 21, 2025

See attached document for complaint.

NHTSA ID

11610431

Incident

Oct 26, 2023

Since 2/2/24 13 episodes of all safety features failing including blind spot monitor, lane keep assist, forward collision warning, and others. Last occurrence on 8-8-24. On one occasion the car failed to accelerate in the middle of an intersection, the car did move slowly and operation returned to normal after turning off the car and pressing the 12V reset button. Diagnostic codes found on car APP include both C164286 and C164202 for all 13 episodes. Despite being told this code is "for the speed sensor because it saw a voltage drop from the battery system" the dealer claims there is nothing they can do because they can't recreate the problem. This is highly dangerous to my family and others as the safety features can prevent accidents. The most concerning is the car suddenly losing acceleration as this could potential happen where there is no safe way to get off the road in time prior to an accident. This loss of acceleration has been reported by many other people on the Facebook group I am a part of called Hyundai Elantra Hybrid Owners. The loss of safety features occurred after all recalls were performed as of 8-8-24

NHTSA ID

11607417

Incident

Aug 8, 2024

When passing under a bridge or traveling underneath train tracks, the forward collision warning would activate causing the car to brake when no other vehicle is in front

NHTSA ID

11604641

Incident

Jul 9, 2024

1. What component or system failed or malfunctioned, and is it available for inspection upon request? Ans: The Forward Collision Warning didn't detect any vehicle ahead of me at the time of collision which caused the crash. 2. How was your safety or the safety of others put at risk? Ans: Me and my co passenger were luckily not injured but got almost killed during the collision. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Ans: The dealership or the Hyundai Motor America couldn't replicate this issue. They didn't answer the question to why the detection didnt happen during the crash and why my Automatic Emergency Braking failed. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Ans: Yes, Hyundai Motor America had a 3rd party company named Bosch inspect the vehicle to check for any fault during the time of cash. 5. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Ans: No there was no warning signs displayed during the time of collision and no signs after the collision as well. Funny part after the collision my front bumper came off, my headlights broke, and many other components were damaged like my air conditioning and my seat heater and stuff but none of those issues showed in my blue link report(a report that shows any signs of warnings or crash detection's) that came to me the next business day in my email from Hyundai.

NHTSA ID

11585829

Incident

Feb 16, 2024

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.

NHTSA ID

11579009

Incident

Mar 22, 2024

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.

NHTSA ID

11576726

Incident

Mar 10, 2024

Horn has now shut off at 11k miles. Jerky shifting transmission Combustion engine failed to start several occasions. Many error warnings for the lane keep assist

NHTSA ID

11563527

Incident

Jan 4, 2024

On December 24 2023, the vehicle's forward collision warning failed. My son has a learner's permit. He was driving the car under my supervision. He pulled into a parking lot and hit a light post. We did not receive a warning, nor did the automobile automatically apply the brakes to avert the collision. There were no injuries. There was no property damage, except for our vehicle. I did not notify the police. In retrospect, we never hear alarms or warning when pulling into our narrow garage. Our other vehicles with the same safety feature do offer an alert in that context. I think the forward collision warning system is defective on this Hyundai Elantra. I have filed an insurance claim and notified the dealership by email. Next steps are pending after we hear back from our auto insurance claims adjuster.

NHTSA ID

11561751

Incident

Dec 24, 2023

The contact owns a 2023 Hyundai Elantra. The contact had received notification of NHTSA Campaign Number: 23V589000 (Electrical System, Vehicle Speed Control) and the recall repair was completed by a dealer. The contact stated while driving at approximately 60 MPH with the cruise control activated, she momentarily disengaged the cruise control to slow for traffic. The contact stated that when the cruise control was re-engaged, the vehicle independently accelerated to almost 100 MPH. The contact was able to slow the vehicle by tapping the brake pedal. The contact stated the failure became a recurring failure. The contact stated no warning light was illuminated. The local dealer who completed the recall repair was contacted and informed the contact that there was no available appointment until December 16, 2023, for the vehicle to be serviced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 18,000.

NHTSA ID

11556490

Incident

Nov 14, 2023

Mileage

18,000 mi

The contact owns a 2023 Hyundai Elantra. The contact stated while driving approximately 65 MPH, the Forward Collision Avoidance: Automatic Emergency Braking brake light illuminated, and the vehicle experienced phantom braking, causing the tires to skid and the speed to be abruptly reduced. Moments later, the Forward Collision Avoidance: Automatic Emergency Braking light turned off and the vehicle operated normally. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure, but no assistance was provided. The failure mileage was 750.

NHTSA ID

11552097

Incident

Sep 15, 2023

Mileage

750 mi

The contact owns a 2023 Hyundai Elantra. The contact stated that while driving at highway speeds, the Forward Collision Avoidance: Automatic Emergency Braking brake light illuminated, and the vehicle experienced phantom braking, causing the tires to skid and the speed to abruptly decelerate. Moments later the Forward Collision Avoidance: Automatic Emergency Braking light turned off, and the vehicle operated normally. The failure had occurred on several occasions. Additionally, the vehicle had experienced unintended acceleration, causing the vehicle to lurch forward. The vehicle was taken to the local dealer who was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was notified of failure. The failure mileage was 1,500.

NHTSA ID

11552088

Incident

Mar 1, 2023

Mileage

1,500 mi

While driving down an interstate at approximately 58 miles per hour, I turned on the cruise control and went to adjust it to 65 miles per hour. The car rapidly accelerated and it appeared on the dash that the cruise control defaulted to 110 miles per hour, which appears to be the maximum on the system. I tried to turn the speed down, but the cruise control would not go below 110 miles per hour. I immediately deactivated cruise control and continued to drive at normal speed. I tried multiple times thereafter to set cruise control, and it would again, rapidly try to accelerate the car to 110 miles per hour and would not let me decrease the speed. After stopping at a rest stop, turning the car off and on and driving again, it appeared the glitch was fixed and I was able to operate the cruise control normally. Please note that the "adaptive" part of the cruise control, including steering assist/lane departure worked fine the entire time.

NHTSA ID

11548907

Incident

Oct 8, 2023

Have experienced at least half a dozen instances of unprompted initiation of the automatic emergency braking system within having the car for about 3 months. Would say that this system is malfunctioning. Automatic emergency braking occurred for seemingly no reason in all instances while travelling on the highway at approximately 70 miles per hour. There were no vehicles in front of the car and no vehicles switching lanes in front of the car. However, there were vehicles behind the car and in other lanes adjacent to the car but behind the car. The unprompted braking is dangerous for the cars behind and could cause a rear end collision where the car behind the drivers car would not register such excessive braking due to the lack of action prompting the automatic emergency braking. Additionally, this can cause driver loss of control due to the extreme response. Problem has not been able to be confirmed by dealer or independent service center. No messages prior just the indicator on the dash identifying the engagement of the automatic emergency braking.

NHTSA ID

11548836

Incident

Sep 26, 2023

I turned on Cruise Control at 60 mph and it immediately set itself to 20 mph, braking fast to slow down quickly. This caused the car behind me to slam on his brakes so he would not rear end me. I tried increasing cruise control speed to no avail. I had to turn it off. Once I did not have any cars behind me, I tried once again so I could take a video and of course, it worked as it should. Not five minutes later, my radio turned the volume down to zero, all by itself. 20 minutes later, when I slowed to turn into a parking lot, my car lagged and acted as if it didn't have gas enough to go up a small incline. Pressing on the gas pedal didn't do very much but I made it up the incline and was able to park. I will be calling Hyundai Dealership tomorrow where I purchased the vehicle last year. I do not have any type of pictures or recordings as it just happened and it was a pretty scary event considering I was almost rear ended.

NHTSA ID

11542784

Incident

Sep 5, 2023

There are have been three significant safety issues with the car. 1. The forward collision alert system goes off without warning and with zero debris or cars in front of me. This has happened three times, putting my safety and those around me at risk. 2. The car has suddenly had what feels like the rear brakes locking up without warning midway through a turn. The car wheels were still spinning but the car stopped moving. This put me directly in harm's way. 3. While my foot was OFF the accelerator while I was approaching a stoplight, the car suddenly accelerated and lunged forward, nearly causing me to hit the car in front of me. I have taken the car in three times and called the dealership about this one more time and have had no resolution; they claim to be unable to replicate the issue. There were no warning messages prior to the failures.

NHTSA ID

11539145

Incident

Aug 13, 2023

On highway, no issues/no bad weather emergency brake came on for approximately 20 seconds for no reason while travelling 70 MPH

NHTSA ID

11533164

Incident

Jul 18, 2023

The contact owns a 2023 Hyundai Elantra. The contact stated while driving 30 MPH with the cruise control activated, the vehicle independently accelerated to 110 MPH and seized at that speed. Additionally, the contact was unable to deactivate the feature. The vehicle was taken to the dealer, who was able to duplicate the failure; however, the dealer was unable to repair the vehicle. The manufacturer was made aware of the failure. The failure mileage was approximately 50.

NHTSA ID

11532097

Incident

Apr 29, 2023

Mileage

50 mi

There have been multiple occasions, both on highway and urban roads, when the Lane Keeping Assist system has forced me out of my lane, both taking control of my car's steering wheel to move me out of the lane while also failing to trigger my Lane Departure Warning. One time, LKA jerked over into a lane of oncoming traffic, another time it jerked me out of my lane into a near collision with a concrete lane barrier, and another time the LKA jerked out of the lane almost into a curb.

NHTSA ID

11512598

Incident

Jan 27, 2023

DRIVING APPROX 40 MPH ON CITY STREET WITH NO CARS IN FRONT OF ME. CAR DASH FLASHED RED ADVISING ENGAGING EMERGENCY BRAKING AND THEN DID. BRAKES APPLIED FOR A COUPLE OF SECONDS AND THEN STOPPED AND WARNING WENT AWAY.

NHTSA ID

11500913

Incident

Jan 9, 2023