2023 Hyundai Elantra Electrical Problems

Which parts fail

• Horn
  4
• Ignition
  1

Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).

Mileage when the problem started

Owner reports

Selected complaints filed with NHTSA by 2023 Hyundai Elantra owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2023 Hyundai Elantra. The contact stated while driving 65 MPH, the rear cross track warning light was illuminated, and applied the brakes independently, causing the vehicle to independently steer to the right. The contact was able to regain control of the vehicle and continued driving. The contact stated he had experienced the failure a total of 5 times. The contact took the vehicle to the local dealer who was unable to duplicate the failure. The contact stated he continued to experience the failure. The vehicle was taken back to the local dealer and to diagnose the failure. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 7,000.

The vehicle's horn has completely stop working as of [redacted]. 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 horn is intermittenly failing and was verified by a Weimer Hyundai in Morgantown, WV on [redacted]. This is a known defect in 2023 Hyundai Elantras and they have issued an extended warranty to address the problem. An absence of a horn is a safety issue as you cannot signal other drivers in emergency situations. It is unlawful to have a horn that does not operate in most states including WV ([redacted]) which is where I currently reside. While a horn is not required by NHTSA , if it is present it must be operable by driver (Safety Standard No. 101, 49 CFR '571.101). For these reasons I am requesting that this should have and should be considered a SAFETY RECALL which is NOT predicated on mileage. By issuing an extended warranty that stops at 120,000 miles Hyundai does not serve those with higher mileage vehicles. …

2023 Hyundai Elantra SEL. Car has been slow to start this week. When I depress the brake pedal and push to start, it will start then shut off in the middle of starting then I have to try again or it will sputter then fully start but every safety alert and electrical alarm will go off in my car and nothing clears it until I drive for about 5 minutes then they all clear. I went to AutoZone and they said my battery was normal health. When this slow start happens I also notice that my vehicle doesn't accelerate as well and it feels like it's trying too hard to the point it will jerk forward even when I'm only lightly pressing the accelerator. I noticed this, 2 winters ago (2024) as well and I thought it was due to the very cold weather we had. Brought it to my sister's fianc e and he couldn't find any DTC's but agreed something felt off. …

Vehicle is still in my possession and available for inspection upon request. My safety and the safety of others was put at risk due to vibration when braking caused by warped rotors, a vehicle that pulls to one side with an off-center steering wheel, abnormal tire wear including a bald tire with a sidewall bubble, and a transmission that has twice failed and recently felt like it was going to stall while accelerating. The wheel bearing/suspension noise was confirmed by an independent repair shop (Firestone) using a listening device at highway speed; however, the dealership's own inspection gave a conflicting finding of no issue. The transmission issues have been reproduced by the dealership in the sense that two replacements were performed; however, the most recent stalling sensation has not yet been independently confirmed. The vehicle has not been inspected by police or insurance. …

The transmission is slipping to the point that I have almost gotten in several accidents due to impatient drives and the car not engaging in gear like it should. Vehicle also has several electrical faults reverse braking system engages at random with nothing in its way,the key not in vehicle warning will sound randomly while key is in vehicle,horn stopped working out of nowhere,while washing vehicle with keys in pocket vehicles key warning system will sound about every 30-60 seconds only when washing vehicle,random front collision warning system with nothing in front of vehicle,seat height adjustment randomly stops working but the rest of the electric seat adjustment works then seat will start working again at random. …

Low pressure oil light did not come on until the oil drain plug had completely fallen out. Once the light came on, the vehicle was slowed and came to a stop on the side of the highway within 2 minutes. The car completely shut off as if the battery were dead. It had to be jumped in order to put the car into neutral for the tow truck. The safety issue is that the hwy we were traveling on is 70mph. At no time, did we receive a warning until it was almost too late. The car is currently at an auto repair shop as the engine is most likely catastrophic and due to the car having no power, they want to replace not only the engine but also the 12 volt battery and it's module. The low pressure oil warning should have come on way before the plug completely fell out and the battery should not be dead. The mechanics can't even fathom why an engine would fail quickly and drain the battery as well.

While driving in a straight line my brakes and brake pedal were activated without any pressure being applied and maintaining about 45 mph. I pulled over to check the car and see if there was anything stuck in the wheel well and saw nothing. I got back in my car and proceeded to drive 2 blocks where i then went to park and upon turning left to pull into a parking spot my car immediately stopped and indicated that the emergency brake had been activated. I had not touched the brakes or the hand brake whatsoever and using the handbrake to turn on and off the emergency brake did not fix this i had to just wait until it was released. Upon researching this other drivers of the same model and year have experienced this problem in more dangerous situations on the freeways and at high speeds. I believe the problem has to do with the emergency brake being activated due to an electrical problem.

My headlights severely fog up during night driving or during rain, damp weather, or after any contact with water. This is an extremely common problem with 2021-2023 Hyundai Elantra (all trim levels) and causes extreme low visibility at night. Another issue is the horn which is also extremely common on 2021-2023 Hyundai Elantra (all trim levels) and mine has gone out completely twice and been replaced twice. My headlights have been inspected with the issue replicated and was told that it will not require any work because it's "normal to have fog inside headlights" and no warranty work will be done to fix this safety issue

I am reporting a recurring issue with my 2023 Hyundai Elantra where the low oil pressure warning light illuminates consistently during strong acceleration. This is accompanied by a distinct smoky odor from the vehicle. Based on my research into recall 23V-859, which addresses fire risks from a faulty electronic controller for the oil pump in the Idle Stop & Go system, I believe my vehicle is experiencing a related or identical failure. The symptoms strongly suggest that the defective oil pump controller is malfunctioning under load, potentially leading to dangerous overheating and a short circuit.

Electrical complaints in other Elantra years