Hyundai Elantra Complaints (2021)

162 consumer complaints on file.

#11562509December 29, 2023
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
vehicle only has 14k miles and is showing an error message for "check forward safety system" and "check smart cruise control system" after some research found this is a very common issue with multiple Elantra's where the front radar goes bad causing safety systems such as automatic braking/acceleration, and cruise control to not work. this is a big safety issue that has been reported by many drivers. the error happened going a steady 40mph with no other cars around on an open road. nothing was hit the radar just suddenly failed
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11559939December 13, 2023
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: WARNINGS
While my son was driving on the highway, the smart cruise control suddenly stopped working with "Check forward safety system" and "Check smart cruise control system".
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11559151December 8, 2023
UNKNOWN OR OTHER
The horn is a known issue to stop working on the Hyundai Elantra. I have had my car for 10 months, and the horn does not work. This is a very big safety concern and I have been told by mechanics and other Hyundai Elantra owners this is a constant issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11558627December 5, 2023
ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
When driving at 55MPH with cruise control on, the car suddenly accelerated to 75MPH, this happened on the open road and was able to keep under control. Auto has less than 10,000 miles. I will be contacting Hyundai customer service for a case number on this incident. First indication of a problem was cruise control, auto braking failed iin June of 2023. This follows a replacement of defective front radar unit by Hyundai which was replaced at 8295 miles on July 26, 2023. This problem first occurred in late June/early July of 2023. There was no warning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11558126December 2, 2023
SERVICE BRAKES, UNKNOWN OR OTHER, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
I bought my 2021 hyuandai elantra on September 7 2023 almost 2 months ago and the emergency braking system comes on pretty often while driving my vehicle on the road and freeway so the brakes will lock on me whenever the car is in drive which could cause a serious crash and probably cause damage over time to brake pads and other things this problem has occurred over 5 times within 2 months
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11554043November 7, 2023
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
I keep getting intermittent HEV warnings and 12-volt light. The engine then shuts down and I have no power. This has occurred several times while on the highway and this creates a safety hazard. I have been fortunate enough that this happened while I was close to the shoulder, otherwise, it could have been critical. - The failed component(s) are the 12 volt battery and engine shutdown - With the vehicle being without power while on the highway puts other drivers and myself at risk of an accident - I have taken the vehicle to two different Hyundai dealers and they have not resolved the problem - The issue was escalated to the manufacturer Hyundai Motors and they have not resolved this issue. - The 12v battery light and an HEV warning light comes on and then the engine shuts off - This issue has been happening intermittently for the past year and I first notice it on October of 2022
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11551914October 25, 2023
EXTERIOR LIGHTING
Headlight lens are holding condensation , I've noticed this problem a few times now , and at night time it is a problem to see unless the brights of the lighting is engaged ,, RE: it's not my eyes , I've just got new bifocal glasses ,,, or maybe they just need adjusted up a bit , I will take it in for inspection, the Hyundai Elantra 2021 , I just purchased on 07/12/2023 , along with the seatbelt recall , I now know why they seem to not always want to latch together several times , thank you for the help researching my new car
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11551172October 21, 2023
ENGINE
This is my second time contact and reporting this issue about the vehicle surging unexpectedly and you cannot get it to slow down except by keeping your foot on the brake and pulling off the road. This has happened multiple times since I have had this vehicle. Recently, I had the car in for service and they said they did a recall for the software to stop this condition from happening again. However, 1 month later, it happened and this time it was the worst I have ever experienced as I kept my foot off the accelerator - it surged over 15mph from the speed I was originally at with me doing nothing and it was still gaining. My car was trying to accelerate with my foot on the brake and I had to cross lanes of traffic to get to the side of the road to restart the vehicle. The reason that it was the worst, is that I literally could not begin to control this vehicle. Other times it has happened and I could at least go for a little bit as long as I kept my distance from other cars but this acceleration was beyond out of control. I could have caused an accident or hit somebody. No warnings appeared, no messages or lights.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11549764October 13, 2023
SERVICE BRAKES
The contact owns a 2021 Hyundai Elantra. The contact stated that while driving at approximately 2 MPH, the brake pedal was depressed but the vehicle accelerated. The vehicle collided with a median and another vehicle. The air bags did not deploy. The contact sustained stomach chest and arm injuries that required medical attention. A police report was filed. The vehicle was towed to the residence. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was 52,000.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11548798October 7, 2023
UNKNOWN OR OTHER, ELECTRICAL SYSTEM:HORN
The horn stops working. It is not a fuse related issue. It is the horn itself. There are multiple reports of horn failure in this model, 2021 and 2022, on the internet and social media. There are people reporting that dealerships are also seeing a lot of cars with horn failure. This is a serious safety issue. Someone could go off the road into the woods and crash, unable to signal with a horn that they’re there. Unable to beep their horn to get the attention of a child or animal that is about to run into the road. There are countless scenarios where the horn is important. Cellphones don’t work everywhere… a horn should always work. There are far too many reports of the horn issue for it to not be a manufacture related issue. Please look into this. This could have pretty tragic implications that could otherwise be avoided. I will attach a screenshot from a social media Hyundai group of the 2022 model. I need to get into the dealership to have mine repaired and will do so asap. I’m just very concerned about the safety of everyone. Some are reporting dealerships are not clear about if the horn issue, which involves replacement of the steering assembly, is covered, while others are saying it is.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11547821October 2, 2023
ELECTRICAL SYSTEM
My car has 76,000 miles on it fully maintained and recorded at hyundai dealerships. One day I’m driving and a check engine light pops up the same day I get it taken in to have it diagnosed, few hours go by I get a call they tell me that the Integrated thermal management module on my car has burnt out. I was surprised because my car is fairly new I asked them how could it prematurely fail they could not give me answer and they told me I would have to pay out of pocket for it and I did. They advised me that I should not drive the car as it could pose severe risk to engine failure as coolant is connected to the part in question. So I left my car there and they ordered a new part and it got fixed the very next day, it was ready for me to pick up. I’m frustrated because I’m not the only one who had this problem and warranty did not cover Hyundai did not want to work with me to resolve my issue and as a result it costed me money and time. I’m not the only one who has this problem but is it really safe for my car to have this part if it could cause engine damage worse fire in that area due to a design flaw.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541657August 30, 2023
ELECTRICAL SYSTEM
My 2021 Hyunadai Elantra HEV Blue 12v battery light comes on and I lose power to the engine and all internal electrical components. It has happened while driving on the highway and it is a safety concern. I have addressed it with the dealership and they stated there were no codes and they canot replicate.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11541394August 29, 2023
STEERING, ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: WARNINGS
On three occasions while turning out into an intersection my steering wheel will lock up and my forward collision warning system will engage and my just stop in the road. Out of those three times, my car has been towed to the dealership twice. The dealer has been working very hard to identify the issue while working with Hyundai tech services. They have poured countless hours and money into this car and still have not been able to identify and correct it. My vehicle has become a deathtrap waiting to happen.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540929August 26, 2023
POWER TRAIN
Cars DCT transmission constantly slips into neutral and is very dangerous when getting onto main roads.. every time I accelerate my vehicle it sits in neutral and revs to high rpms and slows down until it abruptly changes gears very hard and it repeats this for every gear after 2nd
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11540066August 22, 2023
FORWARD COLLISION AVOIDANCE: WARNINGS
Forward Collision warning system continues to engage dangerously and inappropriately, almost causing me to be hit from behind, as I always leave plenty of room in front. This is very scary and very dangerous. Software updates have not remedied the situation. Hyundai motors seems completely uninterested.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11538377August 14, 2023
VEHICLE SPEED CONTROL, FORWARD COLLISION AVOIDANCE: WARNINGS, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Driving on highway, dashboard reported "Check Forward Safety System" and "Check Smart Cruise Control System". The car then disabled both while I was driving. This has happened 6 times to me. The first time I brought it to dealer and they stated it was a calibration problem. They reset it and I had no problems for a while. The problem has occurred 5 times more and will stay on for about a week or so and then just go away. It works again and then occurs again. So, it is intermittent and recurring. Each time the diagnostic code reported by the software to my phone is C162078. I see the 2018 Kona had the same exact problem and a software update TSB was put out there. ( https: [XXX] ) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11537265August 8, 2023
FORWARD COLLISION AVOIDANCE: WARNINGS
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.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11535156July 28, 2023
SUSPENSION, POWER TRAIN
First of all suspension has a noise when going over speed bumps or bumps on the road have taking it to dealer they say they cant find nothing. And the transmission has a pop noise from time to time they say at the dealer that is due to the DCT transmission but it hasn’t stop doing it plus a loud noise when you stop and go. They say there is no recall. Very disappointed with this tranny.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528504June 23, 2023
ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM
the h e v warning light comes on when driving. the hybrid battery disconnects from the engine and the car is undriveable. have to pull over, stop the car, turn off the car and then reset the hybrid battery. this has happened twice in last week. thank fully i was able to pull over safely, but this a dangerous situation for me and other cars around me. the car had been taken to the dealership just two weeks ago and they were unable to diagnose the issue
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528298June 22, 2023
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
Just quit working after being adjusted still not fixed though has been to Hyundai. Say parts are back ordered for months
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to Hyundai Elantra