Warnings problems of the 2020 Hyundai Elantra

Seven problems related to warnings 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 Warnings problem

Failure Date: 06/01/2026

I have a 2020 Hyundai Elantra limited that was purchased new in December of 2020, has 17,764 miles, and no damage. At the end of may/early June of 2026, the car gave warning messages for the following: check forward collision avoidance assist system, check lane keep assist system, and check high beam assist system. The car was inspected by the dealership, from which it was purchased, on June 29, 2026. The technician report says error codes c1604 and c1606 were found and that the car required replacement of the front camera system at the cost of $1991. 49. Front camera failure negates the ability to use the advanced safety features of this car. These features are so important to alert and, more importantly, assist the driver avoid accidents and improve all motorists safety. I have read numerous complaints depicting the same problem with this front camera system. Hyundai issued TSB 20-be-006h due to multiple problems just like the one that happened to me. I have corresponded with Hyundai about this situation and my concerns on why a car with this few miles and no damage had a failure of this magnitude. They are unwilling to assist due to the warranty expiring 6 months ago. For components this important to the safety of all drivers, I would like to see a recall established to hold Hyundai accountable for faulty components. Safety should not be limited by a warranty and last longer than 5 1/2 years. Than you for your consideration.

2 Warnings problem

Failure Date: 06/01/2023

The headlights failed their soldered incorrectly. It looks like a child did it. The back camera has yet to work since shows black screen, and then the lane assistant shuts off in the middle of the road and there’s nothing blocking it. Lights went out and kept going out no matter how many times I replaced the bulb when I was on the highway. I took it into firestone and they stated that the company fucked up the wiring system.

3 Warnings problem

Failure Date: 10/10/2022

I no longer have this vehicle, as I traded it in once I was able to lower some of my negative equity. During owning the 2020 Hyundai Elantra, a deer it the side of my vehicle and knocked me into the center of the road while I was driving. No airbags had come out, nor was any sensor activated. About 6-8 months later, I was driving down the same road and a deer had run across the road. The forward collision sensor did not alert me (I was paying attention to the road, but would have absolutely heard it), and my airbags did not deploy. My car suffered over $9,000 in damage and I had a concussion.

4 Warnings problem

Failure Date: 09/05/2022

The forward collision or emergency braking system gets activated by direct sunlight. Almost every day I drive with the sun directly in front of me in the morning and the car can activate this system with no need when going 30 to 75 mph on the 405, an extremely busy highway. There have been many almost rear ends if I wasn't able to accelerate through the braking. This is a weekly if almost daily occurrence. The independent auto shop said it can happen but they have replaced break pads twice and I'm only at 60,000 miles.

5 Warnings problem

Failure Date: 11/08/2021

My car does not have forward collision warning or lane departure warning. But sometimes it will randomly pop up and the screen and cause my breaks to abruptly stop and almost crash. This has happened atleast 8 times and the car was bought brand new in 2020.

6 Warnings problem

Failure Date: 06/12/2021

The forward accident avoidance system repeatedly cuts off the gas and prevents the car from moving even when there is nothing that could be considered a hazard in front of the car. It leaves me stranded half way through a turn in an intersection or the entrance to a parking lot. The gas pedal is disabled until the computer decides that it is safe. The service manager at the dealer says there is nothing they can do as the system is extremely sensitive and they get a lot of complaints about it. To be left in the middle of an intersection as the light changes and cross traffic starts or to to be stopped halfway through a turn onto a road with approaching traffic is not safe.

7 Warnings problem

Failure Date: 10/14/2020

Tl the contact's boyfriend owns a 2020 Hyundai Elantra. The contact stated that while driving at various speeds, the forward collision avoidance system activated independently. The contact also stated that the forward collision avoidance warning light was displayed on the instrument panel. The contact had initially taken the vehicle to mitchell Hyundai (1600 e. Park Ave, enterprise, al 36330) where the service tech stated that the dealer tag may have caused the issue. The contact disputed the claim. The failure recurred twice. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 1,700.


Other Forward Collision Avoidance related problems of the 2020 Hyundai Elantra



Elantra Service Bulletins
Elantra Safety Recalls
Elantra Defect Investigations