2021 Hyundai Elantra electrical system problems

Related recalls

No recalls on file.

What owners say

1. Filed Aug 12, 2026FLElectrical System

   Vehicle was serviced to remediate Recall 271- backup camera replacement in January, 2025. In June 2026, vehicle is exhibiting the same issue. Rear camera is non functional in the following ways: 1. Vehicle is shifted to reverse, backup camera does not function; 2. Vehicle is in park backup camera button is pressed, backup camera does not function.

   NHTSA complaint #11756440 · source
2. Filed Jun 22, 2026TXElectrical SystemOther / Unknown

   Door Lock Actuator, the door latch is stuck on unlock and it won’t close or lock when the lock button is pressed on key fob.

   NHTSA complaint #11745530 · source
3. Filed Mar 25, 2026OKElectrical SystemLightingVisibility & Wipers

   Daytime and night time running lights turn off and on randomly with brights engaging random as well. Turn signals not operating but intermittently and wipers not turning on intermittently. This Started in Nov 2025. First time dealership could get it in was Jan 2026, stated Multifunction switch was bad and covered under warranty, now not covered after getting it in 3.5 months later. Due to the this being a known safety concern for Hyundai Genesis with extended warranty put in…

   NHTSA complaint #11726986 · source
4. Filed Feb 13, 2026ILElectrical SystemSeats & Seat Belts

   My vehicle has been in the shop here at McGrath Hyundai in Chicago, IL 30+ times since I bought it 5/21. Electrical, (rear), 6 horns, 6 blower motors, multiple warranty and recalls and now my front driver seat belt. They’re refusing to fix it even though I have reported it before. They’re saying over 60,000 miles makes it no longer under warranty. I reported it before and they said that it was okay. It was not okay and still isn’t okay and they think I’m going to pay $1500…

   NHTSA complaint #11717820 · source
5. Filed Dec 4, 202551,192 miTXElectrical System

   Odometer Fraud. The contact purchased a 2021 Hyundai Elantra. The contact stated that it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the mileage was 51,192 and at the time of receiving the vehicle from the dealer it was discovered that the mileage was 50,310.

   NHTSA complaint #11702957 · source
6. Filed Aug 28, 2025GAElectrical SystemSteering

   The Horn never worked since I bought it in August 2023, i’ve been in a countless near accident situations where I was rendered helpless. I’ve had several instances where I get locked out of my car because the vehicle would not read the key. I tried fix the issue because I assumed it was a dead car or key battery but the same problems kept happening shortly after. I became aware of the issue with the horn not working, when I recently purchased the vehicle. I tried to contact…

   NHTSA complaint #11683767 · source
7. Filed Aug 4, 2025CAElectrical SystemEngineOther / Unknown

   Engine shots off while on the automatic stop and go idle . It is being doing it for a while but it is happening more often even with the auto idle off and it even happened at the freeway. It gives me a message to put it in park or neutral and turn the engine on manually. Making this a very dangerous situation because cars behind me don’t know that my engine suddenly shots off. Thanks

   NHTSA complaint #11678266 · source
8. Filed May 20, 2025TXElectrical SystemAcceleration & Cruise ControlTransmission & Drivetrain

   Unintended acceleration is happening. After about 15-30 minutes of driving, accelerating from a stopped position becomes very difficult in the sense that the vehicle does NOT accelerate when gas pedal is pressed. This can be extremely dangerous as you do not know when the vehicle will no longer accelerate and could get hit when crossing an intersection or turning onto any road at all. ESC warning light came on today and vehicle will no longer start but goes into auxiliary…

   NHTSA complaint #11662054 · source
9. Filed Mar 7, 2025TXElectrical System

   My back up camera fails to work consistently. This issue appears to only worsen with every use. Sometimes to screen will appear half on and half off. I have yet to receive any notice of a recall and would like to get this fixed if at all possible. Thank you!

   NHTSA complaint #11647073 · source
10. Filed Jan 10, 2025MDElectrical SystemEngineOther / Unknown

    Constant sound of flowing water throughout the front of the vehicle. Several service appointments later and there is still no solution to the issue that has been going on for over a year. Thia can be heard like a stream of water flowing. Engine ticking, loud rattling from engine. You can hear in from inside of the car.

    NHTSA complaint #11635269 · source
11. Filed Oct 22, 2024PRDriver Assistance & Safety TechElectrical SystemOther / Unknown

    Back up Camera. When reversing cannot see out back window do to incline of glass making hard to reverse. The problem has not been reproduced or confirmed by a dealer or independent service center. The vehicle or component has not been inspected by the manufacturer, police, insurance representatives or others. There was not any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear.

    NHTSA complaint #11621366 · source
12. Filed Oct 21, 2024TXElectrical System

    I am writing to file a formal complaint regarding a significant safety issue with my vehicle’s backup camera system. The backup camera consistently malfunctions, displaying glitchy images with distorted lines across the screen. This issue renders the camera essentially unusable, as it fails to provide a clear view of the area behind the vehicle, posing a serious safety hazard. This malfunction directly impacts my ability to safely reverse, especially in crowded areas where…

    NHTSA complaint #11621050 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology