2024 Hyundai Elantra Problems

What owners report

Owners of this model year most often report that the horn stopped working or worked only intermittently, with some mentioning a fuse, relay, or clockspring. Other common reports describe sudden loss of power or engine shutdowns while driving, camera or radar warnings that disable driver aids, unexpected braking or slowing, and a driver attention message that repeats during normal driving. Mileage is listed in only some complaints, and the figures given are mostly under 25,000 miles.

1. 1
   Electrical system

   Horn stops working or works intermittently

   • 16 complaints (29%)
   • median 36,600 mi at 0.8 yrs old (1 states mileage, few)
   • 1 mention a crash, fire or injury
   • filed 2024–2026

   Owners describe the horn going silent, either suddenly or after intermittent failures that become constant. Some mention a horn fuse that was replaced and then failed again, while others point to a relay on the under-hood fuse panel or a clockspring with intermittent contact. According to complaints, dealers sometimes had to order the horn part, which was not in stock or was on back order, and some repairs were repeated. Some describe no warning lamp or message when the horn failed. Mileage in these complaints ranges from about 1,000 to 36,600 miles, and some horn failures begin within the first 5,000 miles.

   7 related service bulletins

   What to check: Ask whether any horn-related warranty extension applies to the car, and whether the horn fuse, relay, and clockspring were inspected. Test the horn before buying and ask for repair records showing which parts were replaced.

   2 excerpts from owner complaints in NHTSA records

   “My 2024 Hyundai Elantra limited horn stopped working, almost causing someone to hit me. The car only has 4,000 miles on it. I am extremely lucky I did not get in an accident because of this. Extremely dangerous issue and soon further research its a very common problem with some newer Hyundais. There needs to be a recall before some actually gets hurt!”

   NHTSA complaint #11622991, filed 2024-10

   “The horn stopped working in our 2024 Elantra. This is a widespread issue (see NHTSA complaints and Reddit posts). I called ahead to verify with the San Leandro dealership that parts were in stock to perform this repair under warranty (prior to scheduling appointment). We arrived and were told that parts were actually not available (after a 3-hour diagnostic). What changed? …”

   NHTSA complaint #11656883, filed 2025-04
2. 2
   Engine

   Sudden loss of power or engine shutdown while driving

   • 11 complaints (20%)
   • median 43,000 mi at 2.5 yrs old (1 states mileage, few)
   • 2 mention a crash, fire or injury
   • filed 2024–2026

   Owners describe the engine shutting off or losing power while driving, including at highway speed, on a freeway ramp, and in traffic. Some describe the accelerator not responding, the car not picking up speed, or a check engine light shortly before the loss of power. In some accounts the dealer could not locate the problem, and the failure returned after repairs. Mileage is given in only some of these complaints, from 8 miles on a new car to 43,000 miles, and the events are described at everyday driving speeds, including highway speed.

   Recall 24V308000

   What to check: Ask whether the exhaust gas recirculation valve recall repair has been completed, since that recall describes an electrical short that can result in loss of drive power. On a test drive, check throttle response and warning lights, and have a mechanic read any stored fault codes.

   2 excerpts from owner complaints in NHTSA records

   “The Gas pedal, would not work as I was trying to accelerate when going from the ramp onto the freeway. The pedal had no pump in it, it just went all the way down as I was trying to press and the car started slowing down. I had to pull over on the side of the freeway and restart the car for the pedal to start working again. I came to the dealership the next day on 12/5/25, at around 5:45pm in which I was scheduled to come back at 8am on 12/6/25. …”

   NHTSA complaint #11703440, filed 2025-12

   “I was driving around 34 miles per hour in traffic and my speedometer turned red indicating a problem. I attempted to accelerate in traffic and it made a funny noise and would not speed up. I was able to drive home which was about a mile away. Once I got home I turned the vehicle off and back on and the speedometer was blue again. I took it to the dealer and they advise they could not locate the problem , They put it on a level 3 scope and drove it a lot. …”

   NHTSA complaint #11625564, filed 2024-11
3. 3
   Forward collision avoidance

   Camera or radar warnings that disable driver aids

   • 8 complaints (14%)
   • typically at 1.7 yrs old
   • filed 2024–2025

   Owners describe camera, radar, or collision-system warnings that appear without clear reason, such as a radar-blocked message, camera-disabled alerts for lane and blind-spot features, and a rear camera showing a no-signal screen. Some describe dashboard warning lights that come on randomly and disable safety features, and others describe collision systems running a self-test while the speedometer and power steering fail. Dealers reportedly could not duplicate the problem during visits. Where mileage is given, a rear camera failure is reported at about 19,000 miles, and a warning episode is described as clearing after a few minutes of driving.

   1 related service bulletin

   What to check: Ask whether any front camera calibration or service bulletin work has been done, and request the records. During a test drive, check that the driver aid and camera warnings stay off, and have a technician read stored fault codes for the camera and radar systems.

   2 excerpts from owner complaints in NHTSA records

   “I randomly get warning lights that my camera is disabled for Lane Departure Warning, Blind Spot Warning, Forward Collision warning, Lane Assist Warning. Each warning message I get comes one after the other stating CAMERA disabled. After a few minutes of driving, all the orange lights disappear and it seems to reset itself to normal. This has happened on three random occassions. I took it immediately to Hyundai of Bay Ridge but they said they were not able to duplicate the problem. …”

   NHTSA complaint #11706638, filed 2025-12

   “This is a repeat incident. While driving, the speedometer stops working, tachometer, all of the collision warning systems start going through a self test, the check engine light comes on, and most concerning is the power steering. It becomes heavy, as if it is working at half power. The dealer kept the car for over a week recently, and they said that they were unable to duplicate the issue. It happened again while I was on a road trip , and I stopped by five star Hyundai in Albany ga. …”

   NHTSA complaint #11666981, filed 2025-06
4. 4
   Brakes

   Unexpected braking or slowing while driving

   • 5 complaints (9%)
   • median 10,000 mi at 0.5 yrs old (1 states mileage, few)
   • filed 2025–2026

   Owners describe the car braking or slowing on its own, including an abrupt braking event under cruise control and a collision-alert event in which the car braked and steered with nothing ahead. Some describe the car slowing to a lower speed when a school zone message appeared, even though they were not in a school zone. Owners say dealers did not resolve the problem, and some say the manufacturer could not reproduce the condition. Where mileage is given, the slowing is reported at about 10,000 miles, and some braking events are described with cruise control in use or on a highway.

   What to check: Ask for the written repair history of the cruise control and collision alert systems, including any software updates. During a test drive in a safe, open area, check whether the car slows or brakes on its own while cruise control is active.

   2 excerpts from owner complaints in NHTSA records

   “My 2024 Hyundai Elantra limited keep slamming the breaks and Hyundai keep running me in circles and won’t fix it. I fear my vehicle will cause a collision. A case with Hyundai has been open for over 3 months.”

   NHTSA complaint #11771753, filed 2026-10

   “When I am using cruise control, my car will just randomly slam on its breaks. I have taken my car into the dealer multiple times, and they have written it off everytime. They have said it’s “direct sunlight” yet I can prove it’s not happening in the sunlight. It happened again today when it was cloudy. It’s also happened before the sun came up in the morning. I have even filed a case with Hyundai directly, and they said if they can’t get it to mimic it, then they can’t do anything about it. …”

   NHTSA complaint #11701567, filed 2025-11
5. 5
   Lane departure

   Driver attention break reminder appears unexpectedly

   Mentioned in 4 of 53 sampled complaints

   Owners describe a driver attention message suggesting the driver take a break appearing on the display during normal driving. Some say it appears about every few minutes, even when the car stays in its lane, and that it is distracting. Owners say there is no way to turn the warning off. None of these complaints lists mileage, and the message is described as repeating during ordinary driving.

   What to check: Check the driver attention settings during a test drive to confirm whether the warning can be turned off. Ask the dealer for the software update history, since owners describe no way to disable the message.

   2 excerpts from owner complaints in NHTSA records

   “This happens frequently and has probably happened at least 6 or 7 times since I purchased the car last month. Digital warning alert appears on dash for no reason saying “Consider Taking a Break” even though i consistently keep my car in my lane. The warning is both distracting and annoying, and there is no way on this vehicle to turn it off.”

   NHTSA complaint #11707856, filed 2025-12

   “Car makes loud beeping and says consider taking a break even when staying in lane and obeying all traffic rules. Severely distracting while driving and no way to turn it off.”

   NHTSA complaint #11648243, filed 2025-03

Buying note. Anyone considering this model year may want to test the horn, warning lights, and braking and throttle response during a test drive, and ask for repair records and warranty coverage status. The exhaust gas recirculation valve recall and the horn-related warranty extensions are worth confirming with the dealer before buying.

Summary written with AI from a sample of 53 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.