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2021 Hyundai Elantra electrical problems

31 complaints (23% of all complaints for this car).

owner complaints
31
of this car's complaints
23%
crashes
0
recalls
0

Which part fails

  • Horn
    2
  • Instrument panel: speedometer/odometer
    1

At what mileage

Complaints by mileage at the time of the problem.

0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+

Hyundai Elantra electrical problems in other years

19921995200020052010201520202025

Specific symptoms reported on the 2021 Hyundai Elantra electrical

Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.

Backup camera 12

Related recalls

No recalls on record for this model year.

What 2021 Hyundai Elantra owners say

Most recent owner complaints, unedited.

Filed Oct 14, 2026 · Electrical · RI

my car has 60,000 miles and the horns on the car have been replaced 3 times Hyundai issued an extended warranty for the horns on certain 2021-2025 model year ELANTRA, 2022-2025 model year ELANTRA N and 2021-2025 model year ELANTRA Hybrid vehicles' for the 10 years or 120,000 miles from the date of original retail delivery I don't know what world this is acceptable in but it's not acceptable too me after have 3 sets of horns replaced

Filed Aug 12, 2026 · Electrical · FL

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.

Filed Jun 22, 2026 · Electrical · TX

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.

Filed Mar 25, 2026 · Electrical, Lights · OK

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 place, would love a review on Elantra as well because there are several spots in threads stating the same issue. Thank you for your time and consideration.

Filed Feb 13, 2026 · Electrical, Seat belts · IL

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 to get it fixed now as well as re wiring the back of the vehicle for $600, which I have been reporting issues with for years.

Filed Dec 4, 2025 · Electrical · 51,192 miles · TX

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.

Filed Aug 28, 2025 · Electrical, Steering · GA

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 the ALM dealership salesman to report the issue and they told me he had recently quit. They mentioned bringing it back to the shop but it wasn’t guaranteed that the issue would be fixed.

Filed Aug 4, 2025 · Electrical, Engine · CA

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

Filed May 20, 2025 · Acceleration, Electrical · TX

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 mode. This is not the first time, second, third, nor even 5th time a report on this vehicle has been made and with each report more issues are arising with seemingly NO fix in sight.

Filed Mar 7, 2025 · Electrical · TX

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!

Questions about the 2021 Hyundai Elantra electrical

Does the 2021 Hyundai Elantra have electrical problems?

Owners have filed 31 complaints about the electrical of the 2021 Hyundai Elantra, 23% of all its complaints.

At what mileage do 2021 Hyundai Elantra electrical problems start?

Not enough complaints include the mileage to tell.

Was there a recall on the 2021 Hyundai Elantra electrical?

There is no recall for this problem on this model year.

What year does the Hyundai Elantra have the most electrical problems?

The Hyundai Elantra model years with the most electrical complaints are 2013 (155 complaints), 2012 (126 complaints) and 2017 (112 complaints).

Other 2021 Hyundai Elantra problems

Driver assistance 36Seat belts 27Engine 16Acceleration 10Brakes 8Transmission 7Visibility 6Lights 5Steering 5Body 3Airbags 2Suspension 2Seats 1

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