Most common 2020 Hyundai Elantra problems
Share of the 262 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 →
2020 Hyundai Elantra recalls (3)
Engine
Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Elantra, 2019-2021 Kona and Veloster vehicles equipped with 2.0L Nu MPI engines. The piston oil rings may not have been properly heat-treated, which could result in engine damage.
Remedy: Dealers will inspect and, if necessary, replace the engine, free of charge. In addition, Hyundai will deploy Piston Ring Noise Sensing System (PNSS) software. Owner notification letters were mailed August 24, 2021.
Wheels › Lugs/nuts/bolts/studs
Hyundai Motor America (Hyundai) is recalling certain 2019 Ioniq Hybrid and 2020 Elantra vehicles. The right-side rear wheel lug nuts may have been insufficiently tightened, allowing the wheel to detach from the vehicle.
Remedy: Hyundai will notify owners, and dealers will inspect and, if necessary, tighten the lug nuts, free of charge. The recall began November 15, 2019. Owners may contact Hyundai customer service at 1-800-251-0871.
Suspension › Front › Control arm › Lower ball joint
Hyundai Motor America (Hyundai) is recalling certain 2020 Elantra vehicles. The lower control arm ball joint fasteners may have been insufficiently tightened allowing the ball joint to detach from the lower control arm.
Remedy: Hyundai will notify owners, and dealers will inspect and, as necessary, tighten the ball joint fasteners, free of charge. The recall began November 20, 2019.
What 2020 Hyundai Elantra owners say
Engine & cooling all 118 →
The contact owns a 2020 Hyundai Elantra. The contact stated while driving at various speeds, the vehicle erroneously switched from smart mode to sport mode causing the vehicle to independently accelerated. Additionally, the lane departure system would erroneously activate. The contact also stated that while driving at an undisclosed speed, the vehicle pulled to the right. The contact also stated that the exhaust pipe was rusted. The cause of the failures was not yet determined. The local dealer and manufacturer were notified of the failure. The approximate failure mileage was 400. Consumer stated vehicle needs to brought in again, passenger seatbelt alarm goes off without anyone being in the vehicle. AC was leaking water and sensors keep changing automatically. In addition tire has been replaced after 3500 miles. …
The contact's mother owns a 2020 Hyundai Elantra. The contact was informed that the vehicle occasionally stalled without warning and would be immediately restarted to continue driving. Additionally, the vehicle would hesitate before slowly accelerating. The contact stated that there was a knocking sound coming from the vehicle at start-up, with a constant ticking sound coming from the engine compartment. The check engine warning light was illuminated. There were signs of an oil leak, and the oil needed to be changed more frequently. While changing the oil, the owner noticed smoke coming from inside the oil pan. The traction control warning light and the ABS warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed that the ABS module and piston rings in the engine had failed. The vehicle was not repaired. …
Transmission & drivetrain all 48 →
The contact owns a 2020 Hyundai Elantra. The contact stated that he attempted to start the vehicle and felt the vehicle shaking. The contact then stated that he attempted to start the vehicle again when the engine revved and misfired. The check engine warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed that cylinder #2, engine, and powertrain control module (PCM) needed to be replaced. Additionally, the ECU and TCU needed to be updated. The vehicle was not repaired. The contact stated that the dealer was unable to repair the vehicle because the recalls were originated from Puerto Rico. The manufacturer was notified of the failure and informed the contact that the recall could not be honored and provided a case number. The failure mileage was approximately 25,000.
The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at an unknown speed and at a stop, the vehicle lunged forward. The RPM increased and decreased without applying the accelerator pedal. The check engine light was illuminated. A mobile mechanic reset the codes but was unable to determine the failure. The vehicle was taken to an independent mechanic who referred him to the local dealer. The local dealer was contacted, who stated there was a transmission pressure sensor issue. which prevents the service from being performed under Hyundai Service Campaign 863 T5B Bulletin: 20-01-028H. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 76,000.
Lights all 28 →
The contact owns a 2020 Hyundai Elantra. The contact stated while driving approximately 30 MPH at night, the high beam headlight became inoperable. The contact stated that the high beam on the sign was illuminated on the instrument panel. The contact had taken the vehicle to a dealer who diagnosed that the high beam headlights had failed due to a shutter in the headlight housing that opened and closed while needed. The contact was informed that the headlamp housing needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The contact researched online and related the failure to Technical Service Bulletin: 20-BE-004H Headlamp Replacement (Exterior Lighting). The failure mileage was approximately 57,000.
A fire started in the passenger headlight assembly. The car had only been running for about 7 minutes directly prior to the fire being noticed. At the time of the fire it was parked & turned off. No injuries. It burned thru/melted part of the bumper & damaged something with the windshield washer fluid. Several people were at risk due to there being a fire! The car was parked at a gas station when the fire broke out. I don't think they have done a thorough investigation yet. It is current at Hyundai of Metairie in Metairie LA. According to the service technician my car is not the only one they have there that had the same thing happen. No warning signs, sounds, or anything else.
2020 Hyundai Elantra engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 1.4L 4-cyl turbo | 7-speed dual-clutch | FWD | 33 / 41 / 36 |
| 2.0L 4-cyl | CVT | FWD | 31 / 41 / 35 |
| 2.0L 4-cyl | 6-speed manual | FWD | 26 / 37 / 30 |
| 1.6L 4-cyl turbo | 7-speed dual-clutch | FWD | 26 / 33 / 29 |
| 2.0L 4-cyl | 6-speed automatic | FWD | 25 / 32 / 27 |
| 1.6L 4-cyl turbo | 6-speed manual | FWD | 23 / 30 / 26 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2020 Hyundai Elantra a good car?
Based on 262 owner complaints filed with NHTSA, the 2020 Elantra rates use caution: 1.7× as many complaints as a typical year of the Elantra at the same age. It is one of the Elantra years we suggest avoiding. 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 2020 Hyundai Elantra?
The engine & cooling — 118 complaints, 45% of all complaints for this model year, most often about exhaust system. Next are the transmission & drivetrain (48) and lights (28).
How many recalls does the 2020 Hyundai Elantra have?
There are 3 recalls for the 2020 Hyundai Elantra, the most recent from April 28, 2021 (engine). 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 2020 Hyundai Elantra problems happen?
The median mileage reported in complaints is about 10,000 miles; 77% 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.