Most common 2021 Hyundai Elantra problems
Share of the 132 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Hyundai Elantra complaints by model year
Best Elantra years: 2025. Years to avoid: 2013, 2017, 2012, 2018, 2011. Compare all years →
2021 Hyundai Elantra recalls (6)
Back over prevention › Sensing system › Camera
Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Santa Fe, Santa Fe HEV, Elantra, Elantra HEV and 2022 Elantra N and Santa Fe PHEV vehicles. Due to a damaged printed circuit board, the rearview camera image may fail to display.
Remedy: Dealers will replace the rearview camera, free of charge. Owner notification letters were mailed January 14, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 271.
Seat belts › Front
Hyundai Motor America (Hyundai) is recalling certain 2020-2022 Accent, 2021-2022 Elantra, and 2021-2022 Elantra HEV vehicles. In the event of a crash, the front driver-side and/or passenger-side seat belt pretensioners may explode upon deployment.
Remedy: Dealers will secure the seat belt pretensioner(s) with a cap, free of charge. Owner notification letters were mailed August 28, 2022. Owners may contact Hyundai customer service at 1-855-371-9460.
Seat belts › Front
Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Elantra and 2020 Accent vehicles. In the event of a crash, the front driver and passenger-side seat belt pretensioners may explode upon deployment.
Remedy: Dealers will replace the seat belt pretensioners, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed on May 31, 2022.
Visibility › Windshield
Hyundai Motor America (Hyundai) is recalling certain 2020-2021 Santa Fe, 2021 Sonata, and Elantra vehicles. During manufacturing, the windshield may not have been properly bonded to the vehicle, allowing it to detach in a crash.
Remedy: Dealers will remove and reinstall the front windshield panel, free of charge. Owner notification letters were mailed June 20, 2022. Owners may contact Hyundai customer service at 1-855-371-9460.
Seat belts › Pretensioner
Hyundai Motor America (Hyundai) is recalling certain 2021 Elantra, Elantra HEV, Venue, Genesis GV80 and 2022 Genesis GV70 vehicles. In the event of a crash, the front driver-side and/or passenger-side seat belt pretensioner(s) may explode upon deployment.
Remedy: Dealers will replace the seat belt pretensioners, free of charge. Owner notification letters were mailed February 10, 2022. Owners may contact Hyundai customer service at 1-855-371-9460.
Seats › Front assembly › Recliner
Hyundai Motor America (Hyundai) is recalling certain 2021 Elantra vehicles. The driver and front passenger seat back recliners may have been improperly welded.
Remedy: Dealers will inspect and if necessary, replace the seat back frame assembly, free of charge. Owner notification letters were mailed on June 21, 2021. Owners may contact Hyundai customer service at 1-888-371-9460.
NHTSA defect investigations
Federal safety investigators have looked into 2 possible defects involving the 2021 Hyundai Elantra:
Seat Belt Pretensioners May Rupture
On August 8, 2022, the Office of Defects Investigation (ODI) opened this Recall Query (RQ) based on 3 incidents alleging front seat belt pretensioners that may rupture during deployment, on model year (MY) 2020-2022 of various Hyundai and Kia Models, resulting in 3 injuries (note: one incident occurred outside the U.S.
Loss of Motive Power
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021.
What 2021 Hyundai Elantra owners say
Driver assistance all 36 →
My father was involved in a car crash, front end into a wall. Apparently, the front end collison warning did not sound and the auto braking system never engaged. Prior to the accident, the front end collsion warning would come on intermittently, but the dealer checked it out and stated it was working normally (San Bruno Hyundai). AFter the collision repair, the warning light comes on and the car has been at Bakersfield Hyundai now for over a week, but they can't find anything wrong with the warning system, but the system does not function (no warning of collision and auto braking does not engage). Our accident total was $10,000, lucky, no one was seriously injured.
I am filing a complaint regarding a safety recall repair for my vehicle that is not being handled in a timely or reasonable manner by an authorized dealership Delray Hyundai 655 NE Sixth Ave, Delray Beach. Vehicle Information: 2021 Hyundai Elantra SE VIN: [redacted] Recall Information: NHTSA Recall #24V879000 Recall #271 - Backup Camera Inspection/Replacement This recall involves a failure of the backup camera system, which directly impacts visibility while reversing and poses a safety risk. The manufacturer has indicated that a remedy is available; however, the dealership I contacted is refusing to perform recall repairs on weekends and is only offering an appointment more than a month out (scheduled for May 4th). Given that this is a safety-related recall affecting rear visibility, this delay is unreasonable and places me at continued risk while operating the vehicle. …
Electrical system all 31 →
The contact owned a 2021 Hyundai Elantra. The contact stated that the vehicle was parked unattended. Approximately thirteen hours later, he was notified by the fire department that the vehicle had caught fire. A police report was filed. There were no reported injuries. The vehicle was parked where the fire occurred. The local dealer was contacted but the vehicle was not diagnosed or repaired. The vehicle was towed to an impound lot and later the contact's insurance provider declared the vehicle a total loss, the cause was assumed to be electrical. The manufacturer was contacted but no additional assistance was provided. The failure mileage was approximately 24,000.
The contact owns a 2021 Hyundai Elantra. The contact stated while driving 30 MPH, the vehicle decelerated and lost motive power. The contact stated that the vehicle went into LIMP Mode. The vehicle was taken to the dealer on three occasions; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 61,000.
Seat belts all 27 →
The contact's mother-in-law owned a 2021 Hyundai Elantra. The contact stated that while her son was driving the vehicle, he had begun to make a left turn onto a highway as an oncoming vehicle struck the front passenger side of the vehicle at a high rate of speed. The impact sent the vehicle spinning as both her son and her mother-in-law were tossed around inside the vehicle due to the impact. The air bags did deploy. Both of the occupants inside the vehicle were transported to the hospital. The contact's mother-in-law suffered blunt force injury to her chest and multiple rib fractures to both sides of her ribs. She also suffered lacerations to her liver and left leg, as well as fractures to her right tibia and left ankle. The contact's mother-in-law died as a result of her injuries. …
The contact owns a 2021 Hyundai Elantra. The contact stated while driving at 40 MPH, the vehicle shut off. The message "Put Car In Neutral And Restart Engine" was displayed. The contact stated that she shifted into neutral (N) and restarted the vehicle; however, the failure reoccurred persistently. The vehicle was towed to the dealer where it was diagnosed that an unknown activator needed to be replaced. The part was replaced. However, the contact stated that days after the repair, the vehicle would not exceed 25 MPH while driving. The contact pulled into a parking lot. The contact stated that a police officer was able to assist her with correcting the issue under the supervision of the dealer who was on the phone. The contact resumed driving and the vehicle responded as needed. The manufacturer was notified of the failure. The failure mileage was unknown. …
2021 Hyundai Elantra engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 1.6L 4-cyl hybrid | 6-speed dual-clutch | FWD | 53 / 56 / 54 |
| 2.0L 4-cyl | CVT | FWD | 33 / 43 / 37 |
| 1.6L 4-cyl turbo | 7-speed dual-clutch | FWD | 28 / 36 / 31 |
| 1.6L 4-cyl turbo | 6-speed manual | FWD | 25 / 34 / 28 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2021 Hyundai Elantra a good car?
Based on 132 owner complaints filed with NHTSA, the 2021 Elantra rates average: about as many complaints as a typical year of the Elantra at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2021 Hyundai Elantra?
The driver assistance — 36 complaints, 27% of all complaints for this model year, most often about warnings. Next are the electrical system (31) and seat belts (27).
How many recalls does the 2021 Hyundai Elantra have?
There are 6 recalls for the 2021 Hyundai Elantra, the most recent from November 21, 2024 (camera). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Hyundai Elantra?
The best years by complaints, compared at the same age, are 2025. Years to avoid or approach with caution: 2013, 2017, 2012, 2018 and 2011. See the full Hyundai Elantra years comparison.
At what mileage do 2021 Hyundai Elantra problems happen?
The median mileage reported in complaints is about 24,000 miles; 67% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.