2021 Hyundai Elantra Electrical system Problems
- Complaints
- 31about this part
- Share
- 23%of 132 total for the year
- Median mileage
- 51,192miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 31 complaints about the electrical system of the 2021 Hyundai Elantra, 23% of the 132 complaints for this model year. Where a mileage was given, the median is 51,192 miles. 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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, filed 2025-12, 51,192 miles“I have had to get the horn replaced on my ELANTRA six times the horn goes out and this can be a very big safety hazard as it has caused people to almost hit me because they didn’t see me and my horn wasn’t working to alert them this needs to be addressed as soon as possible as this could cause someone to lose their life in the wrong instance”
NHTSA complaint #11569887, filed 2024-02“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, filed 2025-08“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. …”
NHTSA complaint #11717820, filed 2026-02“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”
NHTSA complaint #11771253, filed 2026-10Related service bulletins
- 11031400Apr 18, 2026Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing…
- 11026704Dec 19, 2025In response to this trend, we engineered a software upgrade that addresses the social media theft method and made it available to owners of eligible models free of charge at…
- 11027035Dec 15, 2025Upon customer's request ONLY, the Technical Service Bulletin (TSB) 25-01-089H provides the service procedure for installation of a key cylinder reinforcement protector assembly…
- 11027034Dec 15, 2025In addition to the Anti-Theft software provided under Service Campaign 993 (TSB 24-01-009H-1), a zinc reinforced ignition cylinder protector hardware upgrade is being made…
- 11027033Dec 15, 2025This bulletin provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti-theft decals on the front windows.
- 11023692Sep 30, 2025This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model…
- 11018876May 16, 2025This bulletin provides information related to the changes introduced in the 2024 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model…
- 11018575May 8, 2025Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s…
- 11017111Apr 7, 2025Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon's…
- 11015936Mar 18, 2025Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 5% |
| 2024 | 17 | 30% |
| 2023 | 25 | 25% |
| 2022 | 19 | 19% |
| 2021 | 31 | 23% |
| 2020 | 27 | 11% |
| 2019 | 37 | 15% |
| 2018 | 43 | 15% |
| 2017 | 112 | 15% |
| 2016 | 22 | 8% |
| 2015 | 23 | 9% |
| 2014 | 47 | 12% |
| 2013 | 155 | 12% |
| 2012 | 126 | 19% |
| 2011 | 51 | 12% |
| 2010 | 48 | 13% |
| 2009 | 24 | 9% |
| 2008 | 31 | 10% |
| 2007 | 32 | 12% |
| 2006 | 16 | 10% |
| 2005 | 10 | 7% |
| 2004 | 6 | 3% |
| 2003 | 10 | 4% |
| 2002 | 13 | 4% |
| 2001 | 21 | 7% |
| 2000 | 33 | 17% |
| 1999 | 18 | 14% |
| 1998 | 2 | 4% |
| 1997 | 10 | 9% |
| 1996 | 14 | 14% |
| 1995 | 14 | 13% |
| 1994 | 16 | 21% |
| 1993 | 3 | 13% |
| 1992 | 9 | 31% |
Other parts of the 2021 Hyundai Elantra
32 complaintsOther or unknown
30 complaintsSeat belts
27 complaintsEngine
13 complaintsVehicle speed control
10 complaintsBrakes
8 complaintsTransmission and drivetrain
7 complaintsLane departure
6 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsExterior lighting
5 complaintsSteering
5 complaintsBack-over prevention (rear camera)
3 complaints
← All problems reported for the 2021 Hyundai Elantra
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology