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2021 Hyundai Elantra driver assistance problems

36 complaints (27% of all complaints for this car). 1 crash reported.

owner complaints
36
of this car's complaints
27%
crashes
1
recalls
1

Which part fails

  • Warnings
    30
  • Adaptive cruise control
    16
  • Automatic emergency braking
    9
  • Blind spot detection
    5
  • Warning
    2
  • Rearview system braking
    1
  • Assist
    1

At what mileage

Complaints by mileage at the time of the problem.

0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+

Hyundai Elantra driver assistance problems in other years

20002010201520202025

Specific symptoms reported on the 2021 Hyundai Elantra driver assistance

Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.

Adaptive cruise 12Collision warning 9

Related recalls

Back over prevention: sensing system: cameraReported November 21, 2024 · 226,118 vehicles affected
What is wrong
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. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Risk
A rearview image that does not display reduces the driver's visibility and increases the risk of a crash.
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.

Recall number 24V879000 · Recall details

What 2021 Hyundai Elantra owners say

Most recent owner complaints, unedited.

Filed Apr 17, 2026 · Driver assistance · FL

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: [XXX] Recall Information: the federal safety agency 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. I rely on my vehicle daily and should not be required to wait an extended period for a safety recall repair that is already available. Additionally, limiting recall repairs to weekday-only appointments creates an unnecessary barrier for consumers who work standard business hours. I am requesting that this issue be reviewed, and that appropriate action be taken to ensure dealerships are providing timely access to safety recall repairs, especially when the defect impacts vehicle safety. Thank You INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Dec 11, 2025 · Driver assistance · PA

The Forward collision warning light comes on randomly at times and disables the system. It’s done this on 3 occasions. No one has inspected the vehicle. I was told everything was normal. No injuries involved. The problem has occurred 3 times now with code c1620078. The history codes show this has happened to the previous owner as well. I bought it in 7/2025 and it happened driving it home from buying it, in 11/25, and 12/10/25

Filed Sep 19, 2025 · Driver assistance · MD

Forward sensors in vehicle have been failing while driving rain or snow since 2021; would go way on its own. Most recent failure has occurred with no debris or obstruction to sensor on a clear and sunny day. The sensor failure has been stagnant and will not go away, increasing a safety concerns while driving.

Filed Jun 4, 2025 · Driver assistance · MN

Front sensor problem. Sensor Check Forward Safety System. ABS, Auto Hold light came up out of no where. No damage to sensor.

Filed Feb 17, 2025 · Driver assistance · KS

The camera started to fail for a few days and then it was fine, then the blind spot started to fail and then the camera was useless.

Filed Dec 19, 2024 · Driver assistance · AZ

High Beam Assist, Check Rear Cross-Traffic Safety System, Check Blind-spot safety system, Check forward safety system, Check Lane Keep Assist System, Traction Control disabled. ALL of those messages came on while driving. Rear backup camera quit working, reverse lights do not engage. No remedy for recall still. Vehicle is unsafe to operate without recall being fixed. This is my only transportation, FIX it!!!

Filed Nov 22, 2024 · Driver assistance · MI

Radar equipped to front of vehicle has malfunctioned, disabling all forward safety systems and adaptive cruise control. Without this equipment functioning, cruise control is completely disabled and the vehicle will not automatically brake or provide forward warnings. The vehicle component has not been inspected, but this is a recurring issue amongst other owners of this model. There is a warning lamp that turns out that states "Check Forward Safety System"

Filed Oct 22, 2024 · Driver assistance, Electrical · PR

Back up Camera. When reversing cannot see out back window do to incline of glass making hard to reverse. The problem has not been reproduced or confirmed by a dealer or independent service center. The vehicle or component has not been inspected by the manufacturer, police, insurance representatives or others. There was not any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear.

Filed Sep 16, 2024 · Driver assistance · NY

Several times, including yesterday, my forward collision avoidance engaged by braking suddenly and strongly and INAPPROPRIATELY, almost causing me to be rear-ended. I was nowhere near the car in front of me, and fortunately due to traffic was traveling below the speed limit. This seems to happen whenever there is an overpass above the road. I have reported this to Hyundai, and they don't seem very concerned. Very dangerous. I would think there could be a software or sensor update that can correct this situation.

Filed Jul 24, 2024 · Driver assistance, Electrical · CA

Rear backup camera suddenly stopped working and when in reverse the sensors kick in and breaks the vehicle when there's no object or vehicle behind. Also the code for the backup sensor came up but dealer didn't do anything.

Questions about the 2021 Hyundai Elantra driver assistance

Does the 2021 Hyundai Elantra have driver assistance problems?

Owners have filed 36 complaints about the driver assistance of the 2021 Hyundai Elantra, 27% of all its complaints, more than any other problem.

At what mileage do 2021 Hyundai Elantra driver assistance problems start?

Not enough complaints include the mileage to tell.

Was there a recall on the 2021 Hyundai Elantra driver assistance?

Yes, 1 recall: 24V879000. Check your VIN to see if your car still needs the free repair.

What year does the Hyundai Elantra have the most driver assistance problems?

The Hyundai Elantra model years with the most driver assistance complaints are 2013 (60 complaints), 2012 (47 complaints) and 2011 (38 complaints).

Other 2021 Hyundai Elantra problems

Electrical 31Seat belts 27Engine 16Acceleration 10Brakes 8Transmission 7Visibility 6Lights 5Steering 5Body 3Airbags 2Suspension 2Seats 1

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