general problems of the 2020 Hyundai Elantra

26 problems related to power train have been reported for the 2020 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Hyundai Elantra based on all problems reported for the 2020 Elantra.

1 Power Train problem

Failure Date: 07/30/2025

The contact owns a 2020 Hyundai Elantra. The contact stated that occasionally, while driving at various speeds, the transmission was slipping. The contact stated that while attempting to accelerate from a stop, the transmission was slipping, with the check engine warning light illuminated. The vehicle was towed to a local dealer, where it was diagnosed, and the contact was informed that the failure could not be duplicated and that no fault was found with the vehicle; however, metal shavings were found in the transmission fluid. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 100,781.

2 Power Train problem

Failure Date: 02/14/2025

Vehicle was recently purchased and brought in to service recall 22-01-030h (tcu update and ivt replacement) fred bean Hyundai of langhorne (1106 e Lincoln highway, langhorne, PA, 19047) did the software update, but refuses to honor the ivt replacement as part of the recall, despite the transmission not working and needing to be towed to the dealership. They are attempting to charge me a minimum $5000 to replace the transmission, despite the replacement being covered under this recall campaign. Please contact me and advise if I should pay them and am then entitled to a reimbursement or if I should even have to pay them in the first place. They currently have my vehicle and I can't even drive it off-lot due to failed transmission.

3 Power Train problem

Failure Date: 01/13/2025

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at various speeds, the rpm elevated to a high level while depressing the accelerator pedal. There was no warning light illuminated. The failure persisted while depressing the accelerator pedal without a warning light being illuminated. The contact used a code reader to diagnose the vehicle; however, no fault codes were found. The vehicle was taken to a dealer and was diagnosed with transmission failure. The vehicle remained in the possession of the dealer unrepaired. The manufacturer was not notified of the failure. The failure mileage was 70,000.

4 Power Train problem

Failure Date: 12/31/2024

Transmission failed while driving & now doesn’t drive.

5 Power Train problem

Failure Date: 04/16/2024

I have a code "p0867 transmission fluid pressure" that showed up on my car. Yes. Dealership refused to fix under "service campaign 963". Dealership confirmed issue. No. There is a check engine light that appeared. To continue after the questions, max Hyundai of manhattan, address: 8020 us-24, manhattan, KS 66502. Refused to fix my vehicle under "service campaign 963". As the service campaign indicates code p0867 must be present, which it is. As well as a VIN that starts with 5np, which my vehicle also has. As well as 20my Elantra's. Which my car falls into that category as well.

6 Power Train problem

Failure Date: 04/12/2024

This vehicle recently had a new engine and new transmission installed into it in February of this year. Less than 10k miles on it. The engine light came on on 4/12/2024 and I took it back to the dealer immediately. They called me on 4/15/2024 stating that their engineers and techs had had problems on the transmission recently installed on it due to manufacturing and/or faulty parts, and to replace that transmission with a new one. Still waiting to get the vehicle back at this point in time.

7 Power Train problem

Failure Date: 02/04/2024

Started noticing my 2020 Elantra was "jerking", "lurching" while in motion of driving. Rpm would shoot up. A handful of times I would be losing power and almost not make to where I was headed. Starting/turning from a dead stop, I would have no power and then suddenly it would surge and then I could get up to speed. I did not have any indication before hand or while driving. I did not have any lights come up, while driving or when it did the startup check when turned on. I barely made it to a auto service, he drove it from one end of the parking lot to the other, then whipped into a bay for him to look at. I was told it was the transmission, specifically cvt slippage and he suggested I do not drive home.

8 Power Train problem

Failure Date: 01/19/2024

I took the vehicle in for it's regular oil change on 1/19/2024. My regular mechanic stated to me that "the engine is knocking, you need to get it to the dealer so they can fix the issue as it should be under warranty. " he finished the oil change and we came home and immediately made an appointment with our local Hyundai dealer - that appointment is on 1/30/2024 at 9 am. This is an extremely concerning issue as it affects the whole vehicle and the ability of it to be driven and last a long time. No warning lamps, or messages occurred for this issue, only the statement by my regular mechanic. I want to make sure this is documented in case Hyundai tries to get out of fixing the issue. This could be a very expensive problem. The appointment was made for the 30,000 mile service, but I will make sure they are aware of the engine issue when I take it in as well.

9 Power Train problem

Failure Date: 12/22/2023

Engine seized while going 55-60mph with warning lights only 15 seconds before my vehicle completely stopped on the highway (route 18 east brunswick, NJ) the engine was replaced by Hyundai along with the manifold and catalytic converter. Vehicle lost all control and power and started excessively knocking while I tried to get to the shoulder but only made it to the right lane. The safety of others and myself were out at risk due to no control of the vehicle. Repair order attached.

10 Power Train problem

Failure Date: 12/16/2023

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the check engine light was illuminated on the instrument panel. The vehicle was taken to an independent mechanic, who diagnosed a failure with the transmission. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 98,000.

11 Power Train problem

Failure Date: 08/03/2023

Transmission studders and looses acceleration while driving.

12 Power Train problem

Failure Date: 06/03/2023

The contact owns a 2020 Hyundai Elantra. The contact stated that the vehicle failed to reverse. The contact had to shift to park, stop, and reverse. While attempting to reverse, the vehicle was jerking. There were no warning indicator lights illuminated. The vehicle was taken to the local dealer for an inspection but was not diagnosed or repaired. The dealer informed her that they do not provide service on saturdays. The manufacturer was contacted, who referred her to the dealer. The failure mileage was approximately 10,211.

13 Power Train problem

Failure Date: 04/18/2023

When I start off I give my car gas but it does not want to speed up. The rpm drops to 2 and does not move as I push the gas to go to get out of the way of traffic behind me. It goes about 600 ft before it kicks in. Then it runs normal. It's still under manufacture warrenty (3 more years and 20000 more miles unde warrenty). I've taken it to the dealership and they didn't see anything. Said they would have to keep it a couple of days to check it out. It's my only means of transportation but the never have a loner car for me to use till I get mine back. I've seen others with same complaint so why is there no recall. Afraid I'm gonna get hit in the rear due to lack of power. Doesn't do it everyday but has happened twice in two weeks when I've pulled out onto a major highway with heavy traffic. I bought the car used in Jan. 2023 with warrenty still on the car. Thought hey great deal! but now I think I bought a lemon.

14 Power Train problem

Failure Date: 04/17/2023

While driving home from my family’s house in the next town over. My car decided to have transmission issues I have had the car car for 3 years so far with now issues until two days ago when I heard a loud pop and my car stopped accelerating. Tried to put it manual mode and I watched the gears shift from 1st to 8th gear in seconds then get stuck in fifth the the check engine light came on. And I was stuck on the interstate for almost 8 hours while I tried to get it to move. The car turned over just fine and revved but no movement like it was stuck in neutral.

15 Power Train problem

Failure Date: 02/21/2023

Loud knocking noise coming from engine. Car unable to be driven. No recall for my particular make and model per Hyundai dealer. Extra consumption of oil and loss of power during acceleration. No warning lights or other messages. 79, 500 miles. Problem inspected by certified auto mechanic.

16 Power Train problem

Failure Date: 02/01/2023

Transmission failed - car disabled at 85mph.

17 Power Train problem

Failure Date: 12/23/2022

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at various speeds, excessive force was needed to depress the brake pedal. The contact also stated that on various occasions, the gear shifter seized between gears. No warning lights were illuminated. The vehicle was taken to an independent mechanic, where the failure could not be duplicated. The vehicle was not repaired. The contact sought legal advice from the states attorney general office and was advised to file a complaint with the NHTSA hotline. The manufacturer was not made of the failure. The approximate failure mileage was 20,000.

18 Power Train problem

Failure Date: 11/30/2022

I bought the car from the dealer when the car had a total of 12,000 miles on it the transmission would lunge the car forward at speeds around 70 mph. It made driving the car unsafe on the highway as I couldn't tell if it was going to lunge forward and hit the car in front of me, and I got it to the dealer. It was under warranty and the dealership tested it and said it needed to be replaced. When I got to 18,000 miles the new transmission had a similar incident and the dealership tested again and said this new transmission needed to be replaced completely. It is still under warranty and they will replace it in 3 weeks. I am going to be on the third transmission with a car under 20,000 miles. The transmission was only inspected by the dealership, and they told me that they do not know what was wrong they just pulled out the bad one and put in another, they did not take it apart to figure out what the problem was on the first one that needed to be replaced. I still have the car and can be inspected before I drop it off at the dealership may 6th. There were no warning messages on the dashboard or any other problems with the car. Information below is on the first incident, the second incident started around February of 2023.

19 Power Train problem

Failure Date: 05/31/2022

Approximetly 8 months after purchase car stalled while sitting at rr tracks and traffic light. Replaced battery after stranded due to dead battery. After putting twenty dollars of gas car engine sputtered very loud as if it was running out of fuel this continues to occur. At departure engine stalls restarts and stalls repeats hyndai unavailable for at least 30 days and would not provide loaner or alternative for car with under 60k miles disabled. Enterprise car sales would not assist in trade or repair. Engine light appears then disappears. Headlights feature stopped working it is manual operation only. Collision warning activated on an empty roadway. Tire light illuminated replaced 1 of 4 older mismatched tires. Car is unsafe due to early occurances of electrical, mechanical, engine and computer fail without warning. Enterprise car sales will not take car as trade in, hyndai service appointments booked 30 to 45 day waiting period with no alternative repair or loaner car I have been affected financially and loan is defaulted since I am unable to work. Excessive time spent trying to trade in car, find repair facility, roadside. Car towed due to stalled unable to drive unsure about using car with no warning disabling issues.

20 Power Train problem

Failure Date: 01/16/2022

The power train system:p001 intake camshaft position timing - over advanced bank 1. My car was in good working condition no lights were on in my car up until January 16, 2022, I went to get gas on a regular morning routine before going to work when I turned my car back on after getting gas and I began to pull into traffic and my car stalled and the engine oil pressure light and battery charge warning light came on. My safety could have turned out bad but grace of god my car allowed me to turn it back on and go to the closest location to me and that was auto zone. I got the car towed from there to a Hyundai dealer (preston Hyundai in hurlock, MD) is where the car is currently being looked at.

21 Power Train problem

Failure Date: 06/20/2021

Everytime when I driving around 20 minutes the transmission start failed on the first gear. . . Every time when I stop at the traffic light and then go forward car loose the power in the first gear even sport mode or Smart mode or normal mode he do that. . . . That's to dangerous cause if I have to crossing a way that only have a stop sign might can get an accident.

22 Power Train problem

Failure Date: 02/12/2021

While driving on highway at full speed, the car shifted into 1st gear on its own. Traffic was heavy, but fast, creating a dangerous situation. I was able to get the car over. It was taken to service and the dealer found that the whole transmission needed to be replaced.

23 Power Train problem

Failure Date: 02/02/2021

Tl the contact owned a 2020 Hyundai Elantra. The contact stated that the vehicle would intermittently stall upon placing the gear shifter into reverse without warning. The contact had taken the vehicle to Hyundai of jefferson city (3215 missouri blvd, jefferson city, mo 65109) where the range sensor was replaced. The contact stated that he sold the vehicle the day after the sensor was replaced. The manufacturer was not notified of the failure. The vehicle was repaired. The failure mileage was approximately 2,000. The VIN was not available.

24 Power Train problem

Failure Date: 12/16/2020

While driving on highway at full speed, the car shifted into 1st gear on its own. Traffic was heavy, but fast, creating a dangerous situation. I was able to get the car over. After turning the car off and then back on, a light came on saying there was a transmission control board issue, and that the car should be serviced soon. It was taken to service and the dealer found that the whole transmission needed to be replaced.

25 Power Train problem

Failure Date: 10/30/2020

At least 5 or 6 times, I have experienced sudden uncommanded acceleration with my 2020 Hyundai Elantra. One time my car hit a tree. These have been terrifying incidents. It usually happens when I am slowing down or braking.

26 Power Train problem

Failure Date: 02/20/2020

2/20/2020 - I was driving my new 2020 Elantra (less than 5,000 miles on it) and I noticed the car was not accelerating smoothly. The rpm needle was revving abnormally whenever I tried to accelerate. When I pressed the gas from a dead stop the car would shutter before accelerating. On my way home from work the same day I was having the same issues but as I merged (turning) onto a highway the car suddenly stopped accelerating all together and I was not able to go more than 10-20 mph. Since it was at a merge there was almost a collision, but I was able to pull over before anything happened. 2/21/2020- the next day while I was at work my husband tried to drive my car to the dealer. He experienced the same issues and when he got to the dealership he was unable to turn the car into the service station because the car would not accelerate. Service workers had to push the car into the bay to be looked at. The employee told us this was about the 15th 2020 Elantra they have seen with the same transmission issue. No emergency lights came on in the car during either incidents. Since no lights came on during the incident, I was very hesitant to drive the car again.



Elantra Service Bulletins
Elantra Safety Recalls
Elantra Defect Investigations