2021 Hyundai Santa Fe Owner Complaints

I bought a new 2021 Hyundai Santa Fe SEL in January 2021. The vehicle occasionally will not shift out of first gear unless you slow down to almost a stop and then accelerate again. It began within the first month or two of owning. Hyundai has had it in the shop three times. Two times they said they couldn't duplicate. One time they said they showed it went to 4000 RPM's without shifting on the diagnostics before it was slowed down as I told them. They did an update on the TCU and reset the transmission on May 10, 2021. On August 4, 2021 the transmission stuck again. (It went to 5000 RPM's without shifting before I slowed it to almost a stop) This problem has happened about eight times since it began. The GM at the dealership I bought it from said Corporate wouldn't buy it back or get involved without them duplicating the problem. I emailed Hyundai consumer complaints on August 17, 2021 and on August 18 received an email stating I had a case # and would be contacted shortly. On August 24 I called Hyundai customer complaint and was told I had a case manager assigned and they had until August 31 to reply. They did not reply and on September 1, 2021 I called Hyundai complaints again and they said I did NOT have a case manager and that they had not sent it to corporate yet but someone would call me at some point. I feel Hyundai is not concerned about this dangerous problem with their vehicle or my safety. I am beyond frustrated. Jeremy Kimrey

9/1/2021

10/22/21, Mileage ~720, while driving on the highway I had two incidents when the car did not respond to throttle application. In the first instance while attempting to accelerate mildly on a level road the rpm went to 3500 with no acceleration. I backed off the throttle and the car resumed normal operation. In the second instance while attempting to accelerate mildly on a level road the rpm showed about 1500 with no acceleration. I backed off the throttle and the car resumed normal operation. I had no further incidents and returned home safely. There were no warning lights, messages. This is the first problem I have experienced. I think this may be a transmission problem. Similar incidents have been reported online by Hyundai owners with the wet DCT that my car has. I have not yet contacted my dealer about this problem.

10/23/2021

WHILE IN DRIVE AND STATIONARY, MY VEHICLE HAS CONTINUOUSLY CAD CONNECTIONS ISSUES WITH MY MOBILE PHONE. I HAVE RECEIVED THE SAME ERROR MESSAGE STATING 'PHONE NOT RESPONDING. PLEASE RECONNECT IT AND TRY AGAIN.' THIS HAS HAPPENED WHILE DRIVING THROUGH AREAS I'M UNFAMILIAR WITH AND PUT MYSELF AND OTHERS AT RISK WHILE TRYING TO REGAIN CONNECTION. I'VE LEFT MY VEHICLE AT THE DEALERSHIP, BUT WAS TOLD THE PROBLEM WAS MY CELLPHONE AND WAS ADVISED TO PURCHASE A NEW PHONE. WHEN I SPOKE TO THE WOMAN AT THE CORPORATE HYUNDAI NUMBER, SHE ADVISED ME THAT MY PHONE WAS VERY MUCH COMPATIBLE AND SHOULD NOT HAVE ANY CONNECTION PROBLEMS, WE TROUBLESHOOTED MANY TIME, BUT I STILL CONTINUE TO HAVE THIS ISSUE.

3/22/2021

DARK SPOT IN LOW BEAM HEADLIGHT FIELD CAUSES LOSS OF VIEW FOR DRIVER AS THE DARK SPOT PASSES FROM OBJECT TO OBJECT. PEOPLE OR ANIMALS, EVEN SIGNS LOSE ILLUMINATION AS THE DARK SPOT COVERS THEM. REFLECTIVE BARRELS IN CONSTRUCTION AREAS LOSE THEIR REFLECTIVITY AT NIGHT AS THIS SPOT COVERS THEM. THIS OCCURS ON THE LOW BEAM FUNCTION. HYUNDAI DEALER SAID IT IS FACTORY CREATED TO PREVENT NIGHT BLINDING OF ONCOMING VEHICLES. TO ME IT IS A SERIOUS PROBLEM FOR THE DRIVER OF THE HYUNDAI. WHEN DRIVING IN A CURVE THE DARK SPOT MOVES WITH THE SHAPE OF THE ROAD SO THE DRIVER LOSES THE ABILITY TO SEE EVERYTHING IN THE LIGHT FIELD.

5/6/2021

It's only been less than a month, since I bought this car and I've driven ~500 miles. Now when I was driving the car yesterday it just stopped in the middle of the road all of a sudden for no reason. After getting the car towed to the service center, they are reporting that there is an issue with the car's transmission and they are going to replace it.

5/21/2021

Car would not start; battery was too low to activate lights or locks, let alone starter. An attempted jumper cable connection to an older car was insufficient to make the motor turn, even after just running the assist car while connected for 20+ minutes. A subsequent jump from the AAA 2000 Ah jump pack did work although their ‘test’ indicated battery state-of-charge and state-of-health to be less than 30%. Their obvious recommendation was battery replacement and, with the vehicle now running, a drive to the dealership was attempted. At the first intersection a full vehicle stop engaged the engine Stop-Start function, but without sufficient battery for the ‘Start’ part. Not only would the vehicle not restart but there was insufficient battery power to put the transmission into PARK nor engage the emergency brake to prevent the vehicle from rolling into busy cross-traffic; only the service brake worked. Fortunately, a nearby motorist recognized the emergency and placed rocks under the tires to prevent the vehicle from rolling forward. The vehicle was towed to the dealership where the battery was replaced without significant comment on the total failure of nearly all systems in the event of battery failure. The outcome of this major battery failure could have been catastrophic as the ONLY system even marginally functional was the non-power-assisted service brake.

9/28/2021

Car would not start; battery was too low to activate lights or locks, let alone starter. An attempted jumper cable connection to an older car was insufficient to make the motor turn, even after just running the assist car while connected for 20+ minutes. A subsequent jump from the AAA 2000 Ah jump pack did work although their ‘test’ indicated battery state-of-charge and state-of-health to be less than 30%. Their obvious recommendation was battery replacement and, with the vehicle now running, a drive to the dealership was attempted. At the first intersection a full vehicle stop engaged the engine Stop-Start function, but without sufficient battery for the ‘Start’ part. Not only would the vehicle not restart but there was insufficient battery power to put the transmission into PARK nor engage the emergency brake to prevent the vehicle from rolling into busy cross-traffic; only the service brake worked. Fortunately, a nearby motorist recognized the emergency and placed rocks under the tires to prevent the vehicle from rolling forward. The vehicle was towed to the dealership where the battery was replaced without significant comment on the total failure of nearly all systems in the event of battery failure. The outcome of this major battery failure could have been catastrophic as the ONLY system even marginally functional was the non-power-assisted service brake.

9/28/2021

While driving in the fast lane on the freeway at speed limit the car suddenly began to slow/stop, after which a warning flashed on the display that said Danger, collision imminent, or something like that. There was no one close in front of me when that happened. This exact scenario has happened three times now in this car, in the same way! I felt my life was endangered every time by the sudden and unnecessary braking of my car.

11/3/2021

THE FORWARD COLLISION SYSTEM IS AUTOMATICALLY BEING ACTIVATED WITHOUT ANY CAR OR OBJECT NEAR THE FRONT OF THE VEHICLE. IT HAPPENED 3 TIMES WHILE ON THE FREEWAY AND HIGHWAY. THE SYSTEM AUTOMATICALLY SLAMS ON THE BRAKES, THE VEHICLE SWERVES A LITTLE TO LEFT AND RIGHT DUE TO THE SUDDEN APPLICATION OF THE BRAKES, AND A LARGE RED WARING INDICATOR APPEARS ON THE DASH. WE WERE NEARLY REAR ENDED WHILE TRAVELLING ABOUT 65 MILES/HR BECAUSE OF THIS. WE TURNED OFF THE SYSTEM, BUT EVERY TIME THE CAR IS STARTED, IT AUTOMATICALLY TURNS THIS FEATURE ON!! SO YOU ALWAYS MUST REMEMBER TO TURN IT OFF. WE JUST BOUGHT THE VEHICLE BRAND NEW. IF THIS ISNT FIXED, WE FEAR WE WILL BE REAR ENDED ON THE FREEWAY, OR MAKE TAIL GATERS VERY ANGRY.

5/11/2021

Message: I own a 2021 Hyundai Santa Fe with the Forward Collision-Avoidance Assist feature installed and activated. The Forward Collision-Avoidance Assist did not function properly to stop my car to avoid a low speed impact. I applied the brakes to stop. I could not avoid impacting another vehicle. The damage was minor. Hyundai did inspect my vehicle braking system on June 8 at Hyundai of Cool Springs. I was not provided full report on findings/corrective action. Hyundai America was supposed to provide a follow up report. I was called today and the Hyundai representative had no details on the brake inspection to share with me. I am suspicious. I think Hyundai is hiding a safety issue. I am reporting this event so the NTSB can contact Hyundai to determine if this is a safety defect needing corrective action. The Hyundai Forward Collision-Avoidance Assist is designed to help detect and monitor the vehicle ahead or help detect a pedestrian or cyclist in the roadway and warn the driver that a collision is imminent with a warning message and an audible warning, and if necessary, apply emergency braking. Ref: Hyundai owner's manual, chapter 7, page 7-2 On page 7-6 the system operation is described: System operation Basic function System warning and control The basic function for Forward Collision- Avoidance Assist is to help warn and control the vehicle depending on the collision level: ‘Collision Warning’, ‘Emergency Braking’ and ‘Stopping vehicle and ending brake control’. OTM070143N Collision Warning • To warn the driver of a collision, the ‘Collision Warning’ warning message will appear on the cluster and an audible warning will sound. • If a vehicle is detected in front, the system will operate when your vehicle speed is between approximately 6~112 mph (10~180 km/h). • If a pedestrian or cyclist is detected in front, the system will operate when your vehicle speed is between approximately 6~53 mph (10~85 k

7/13/2021

THE FORWARD COLLISION SYSTEM IS AUTOMATICALLY BEING ACTIVATED WITHOUT ANY CAR OR OBJECT NEAR THE FRONT OF THE VEHICLE. IT HAPPENED 3 TIMES WHILE ON THE FREEWAY AND HIGHWAY. THE SYSTEM AUTOMATICALLY SLAMS ON THE BRAKES, THE VEHICLE SWERVES A LITTLE TO LEFT AND RIGHT DUE TO THE SUDDEN APPLICATION OF THE BRAKES, AND A LARGE RED WARING INDICATOR APPEARS ON THE DASH. WE WERE NEARLY REAR ENDED WHILE TRAVELLING ABOUT 65 MILES/HR BECAUSE OF THIS. WE TURNED OFF THE SYSTEM, BUT EVERY TIME THE CAR IS STARTED, IT AUTOMATICALLY TURNS THIS FEATURE ON!! SO YOU ALWAYS MUST REMEMBER TO TURN IT OFF. WE JUST BOUGHT THE VEHICLE BRAND NEW. IF THIS ISNT FIXED, WE FEAR WE WILL BE REAR ENDED ON THE FREEWAY, OR MAKE TAIL GATERS VERY ANGRY.

5/11/2021

Smart Cruise Control relies on the inconsistent and consequently unreliable performance of the of the front-mounted radar. Otherwise-reasonable operation of the Cruise Control would abruptly terminate 1/3 to 1/2 of the intended use-time, illuminating the master warning light (the amber triangle with internal ‘!’) that was accompanied by either a ‘1’ or ‘2’ encircled by red and may or may not have included the Collision-Avoidance warning light. Subsequent examination of the rectangular shield in the center of the grill very rarely revealed more than 2 bug remnants. When the Smart Cruise Control was in operation it would abruptly apply the brakes when approaching or passing a truck in the lane to taffiche right. There appeared to be no similar conditions to the size or shape of the truck or trailer when these events would occur. None of these events applied to congested tr conditions, just otherwise open road. The ’21 Hyundai Santa Fe does not appear to accommodate any mechanism to revert to conventional cruise control, omitting the influence of the erratic front radar system. Trips to two dealerships have yielded no redress to this malfunction.

9/28/2021

Car would not start; battery was too low to activate lights or locks, let alone starter. An attempted jumper cable connection to an older car was insufficient to make the motor turn, even after just running the assist car while connected for 20+ minutes. A subsequent jump from the AAA 2000 Ah jump pack did work although their ‘test’ indicated battery state-of-charge and state-of-health to be less than 30%. Their obvious recommendation was battery replacement and, with the vehicle now running, a drive to the dealership was attempted. At the first intersection a full vehicle stop engaged the engine Stop-Start function, but without sufficient battery for the ‘Start’ part. Not only would the vehicle not restart but there was insufficient battery power to put the transmission into PARK nor engage the emergency brake to prevent the vehicle from rolling into busy cross-traffic; only the service brake worked. Fortunately, a nearby motorist recognized the emergency and placed rocks under the tires to prevent the vehicle from rolling forward. The vehicle was towed to the dealership where the battery was replaced without significant comment on the total failure of nearly all systems in the event of battery failure. The outcome of this major battery failure could have been catastrophic as the ONLY system even marginally functional was the non-power-assisted service brake.

9/28/2021

This SUV has been plagued with issues, and yet after 5-6 visits to the dealership, they don't seem to be able to fix them all. The vehicle (2.5T AWD) currently has around 14k miles and within the past month the gas pedal suddenly became unresponsive, worst of all while carrying my kids and wife in the car. Coming to a dead stop to cross an intersection, went to accelerate to join traffic and the car wouldn't accelerate. Last time on 9/23 when I almost got into a head-on accident while making a left turn as the car barely moved into the first of three incoming lanes, would not accelerate and so forced me to quickly hit reverse, outrageous! Other three times while making a right turn. Auto engine-off has been disabled on all occasions (hate it); two times happened while driving on smart mode, another one on comfort and another one on sport mode. Car has been always using Mobil, Shell or Chevron gasoline. Which also brings me to another point, the vehicle suddenly started consuming crazy amounts of gas, currently at 16mpg for the past 4 full tanks! The vehicle was dropped off at dealership on 9/26/22 and already filed for Lemon Law in FL as this is absolutely unreliable and dangerous to carry my family on. According to manager at Rick Case Hyundai of Davie, an update for the transmission just came out this week after a recall and so they were going to reprogram. I am still getting rid of this p.o.c.

9/26/2022

Driving around 25 miles per hour small pebble hit the top part of the windshield cracking it instantly and creating a rupture line from top to bottom of the windshield. Windshield glass seems very unsafe to sustain any kind of stress. It looks like other Hyundai models are showing the same problems with these windshield.

6/21/2021

OUR WINDSHIELD STARTED CRACKING FOR NO REASON WHILE DRIVING. ONLY HAD THIS CAR FORV A MONTH AND LESS THAN 1000 MILES. NOTHING HIT IT. THIS IS RIDCULOUS BEING A BRAND NEW VEHICLE.

7/17/2021

This vehicle is the first Santa Fe that only comes with adaptive cruise control and there is no way to disable it and set regular cruise control. Here are just a few examples of the safety risk. We were on State Highway 29 which is a rural 4 lane highway. There were 4 cars near us. Our cruise was set for 70mph. A vehicle came in front of us to pass which it did. There was no issue. However, our vehicle saw this as a threat and our vehicle slowed from 70mph to 50mph until the other vehicle was out of the set car length distance. Meanwhile the other cars around us had no indication or warning why we would have slowed down this much and we were nearly rear ended. There was screeching of tires and brakes suddenly applied by the other vehicles. All for nothing. I am on the highway with the cruise set at 75mph when again vehicles will come in front of me and my vehicle slows from 75 mph to 54mph, causing the surrounding vehicles to not know what is going on and I hope they are paying attention because there is nothing really going on other than normal driving. It is terrifying to have your vehicle control itself and you don’t know when it will start to accelerate again so for the most part, I am shutting the cruise control off and on constantly. At our most recent Hyundai service appointment for this problem, we were told by Hyundai Care Manager that this is exactly how it’s designed and there is no problem. And we’ve been told just simply don’t use the cruise control at all. That is not a solution. We feel like all these “safety” features are creating a sense of driver coma on our roads. Instead of the left lane being used for faster cars as a passing lane, the adaptive cruises are creating a chain of vehicles that are well under the speed limit

8/20/2021

On January 26th, 2023 at 9:57am the vehicle was unable to shift into reverse, drive, or neutral. The vehicle's system sent automatic messages indicating to have the transmission control system checked. We had the vehicle towed to a Hyundai dealer to be serviced. The dealership advised they performed a software update and that nothing else needed to be done. Then on January 30th, 2023 at 7:44pm the vehicle's check engine light came on and the vehicles system sent us another notification to our phone and email that there was a transmission control system issue. The vehicle shakes abruptly when accelerating after a stop. I have photos of the warning messages as well as video of the car shaking.

1/31/2023

While driving the car in cruse control the speedometer would jump up and down rapidly making the car accelerate and break. The warning lights come on saying the forward, side back sensors are off. At times stepping on the breaks a plastic bottle crunch sound will occur but the breaks were fine. I scheduled a repair but was still driving the car. Then I approached an intersection and the light was turning green to yellow so I stepped on the breaks only to have the pedal go to the floor without resistance and no breaks at all. I had to drive through a red light endangering myself and others at that intersection. I pulled into a parking lot and the breaks were working again. Car has been towed to the West Herr Hyundai Dealer on Transit Rd Williamsville, NY for repairs.

3/10/2022

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while his wife was driving at various speeds, she had to depress the brake pedal to the floorboard to stop the vehicle. The contact stated no warning light was illuminated. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. Upon investigation, the contact associated the failure with TSB: 21-01-181H. The manufacturer had been informed of the failure. The failure mileage was approximately 58,800.

3/6/2023

The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 21V00M000 (Visibility) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The local dealer and the manufacturer were made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

2/2/2022

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while self-inspecting the vehicle, the glass located above the windshield and sunroof showed cracks. Additionally, parts of the glass had detached. The vehicle was taken to the dealer, who informed the contact to contact the insurance provider. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 35,000.

6/9/2023

While driving on the interstate where no other vehicles were within eye view and no overpasses my sunroof glass exploded. It sounded like a gunshot and it wasn’t until I heard the glass rattling above my head that I realized where it was coming from. Luckily I had the cover closed so majority of the glass was caught by that. The incredibly loud noise startled me tremendously and could caused a collision because of my focus being taken away from the road. The shattered glass was in my lap, on my hand, in my hair ect. causing small cuts with the potential to cause serious harm had the cover not been closed. No, it has been several weeks almost a month and the dealer is requiring confirmation from corporate case management before it can be assessed. Corporate has been “escalating” my case yet a caseworker was not assigned my case this whole time and once a caseworker was finally assigned on 7/8 I had yet to hear from them so I attempted to call on 7/11 and was given a further run around. I am riding around with a plastic bag and tape fastened to my car to hopefully prevent water damage from occurring going on a month now. The bags are so loud when driving that they prevent me from being able to hear what’s going on with my surroundings on the roadway which is unsafe No.

7/11/2022

While backing out of our garage, the “eyebrow” glass portion of the panoramic sunroof shattered. Nothing struck the glass. Our insurance is paying for the repair and rental car for a week. Hyundai will not cover the glass damage under the warranty. Online searches indicate that Hyundai has a lengthy history of faulty panoramic sunroofs.

11/6/2022

Emergency braking comes on with no vehicles in front for 1/4 mile. Passenger front seat belt is no working properly. Caution Collision comes on sporadically. Clock does not show correct time. Stop-Start System works sporadically. A/C fan blows out defrost sometimes. Remote start does not always work or shuts off too soon. Case Manager does not return calls. Changed Case Manager but NO BETTER. Hyundai DOES NOT CARE.

8/25/2022

The driver side seat belt crosses at my neck. I have adjusted it as much as it will adjust and it still cuts into my neck. I am very concerned that if I am in an accident it will choke me or even decapitate me. In addition it is very uncomfortable but I am mostly concerned about the safety issue. I have not brought the issue to the dealer and I am unaware of any actual instances of injury happening. I assume you have access to that information.

2/14/2024

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while the back-up camera was activated, the screen display turned to a green color and no image was visible, creating a visibility hazard for the driver. The contact indicated that the failure was intermittent. The vehicle was taken to the local dealer who was unable to duplicate the failure or retrieve a fault code. The vehicle was not repaired. The manufacturer was not yet notified of the failure. The failure mileage was 21,000.

9/13/2022

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while stopped at a traffic signal, the vehicle hesitated while depressing the accelerator pedal. The contact stated there was no warning light illuminated. The contact stated that the failure was intermittent. Additionally, the contact stated that while the vehicle was in reverse(R) the back over protection camera screen was black. The contact stated that after turning off the vehicle, the reverse image screen operated as needed. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 16,000.

2/22/2024

DARK SPOT IN LOW BEAM HEADLIGHT FIELD CAUSES LOSS OF VIEW FOR DRIVER AS THE DARK SPOT PASSES FROM OBJECT TO OBJECT. PEOPLE OR ANIMALS, EVEN SIGNS LOSE ILLUMINATION AS THE DARK SPOT COVERS THEM. REFLECTIVE BARRELS IN CONSTRUCTION AREAS LOSE THEIR REFLECTIVITY AT NIGHT AS THIS SPOT COVERS THEM. THIS OCCURS ON THE LOW BEAM FUNCTION. HYUNDAI DEALER SAID IT IS FACTORY CREATED TO PREVENT NIGHT BLINDING OF ONCOMING VEHICLES. TO ME IT IS A SERIOUS PROBLEM FOR THE DRIVER OF THE HYUNDAI. WHEN DRIVING IN A CURVE THE DARK SPOT MOVES WITH THE SHAPE OF THE ROAD SO THE DRIVER LOSES THE ABILITY TO SEE EVERYTHING IN THE LIGHT FIELD.

5/6/2021

NOTICE: THIS CONCERN IS NOT THE RESULT OF AN ACCIDENT, IT IS AN ATTEMPT TO BRING ATTENTION TO WHAT I FEEL IS POOR ENGINEERING/DESIGN OF THE TURN SIGNAL INDICATORS ON THE BACK END OF THE 2021 HYUNDAI SANTA FE. We recently purchased this vehicle and just noticed, after owning the vehicle for about a week, that the only turn signal indicators on the back of the vehicle are located down low in the bumper. No turn signal indicators on the tail light assemblies located just below the rear window of the SUV as found on EVERY OTHER recently built SUV currently driving on US highways. That includes the 2017 Hyundai Santa Fe which we traded in to purchase this model. While I like this vehicle very much, I'm concerned for the safety of my family and anyone else who purchases a 2021 Santa Fe. I feel this is a grave oversight on the part of Hyundai and possibly the US Vehicle Safety Council (assuming the council approves car designs designated for US highways.) I sincerely hope that someone there will address this situation before people start getting hurt because the turn signal wasn't seen by following drivers.

6/26/2021

I WAS DRIVING ON THE FREEWAY WITH THE SUNROOF CLOSED WHEN I HEARD A VERY LOUD BANG. I PULLED OFF TO CHECK THE EXTERIOR BUT SAW NOTHING. I DRIVE FOR ABOUT AN HOUR MORE WHEN IT STARTED SOUNDING LIKE THE SUNROOF WAS OPEN. I PULLED OVER TO CHECK IT, AND IT WAS DESTROYED..SHATTERED WITH A LARGE HOLE IN IT. CALLED HYUNDAI WHO SAID REPORT TO INSURANCE EVEN THOUGH THE CAR IS LESS THAN 1 MONTH OLD.

5/8/2021

The Brow Glass between the top of the windshield and the sun roof, alligator cracked following by a complete crack and breakage along the full width of the glass.

5/25/2023

This vehicle is the first Santa Fe that only comes with adaptive cruise control and there is no way to disable it and set regular cruise control. Here are just a few examples of the safety risk. We were on State Highway 29 which is a rural 4 lane highway. There were 4 cars near us. Our cruise was set for 70mph. A vehicle came in front of us to pass which it did. There was no issue. However, our vehicle saw this as a threat and our vehicle slowed from 70mph to 50mph until the other vehicle was out of the set car length distance. Meanwhile the other cars around us had no indication or warning why we would have slowed down this much and we were nearly rear ended. There was screeching of tires and brakes suddenly applied by the other vehicles. All for nothing. I am on the highway with the cruise set at 75mph when again vehicles will come in front of me and my vehicle slows from 75 mph to 54mph, causing the surrounding vehicles to not know what is going on and I hope they are paying attention because there is nothing really going on other than normal driving. It is terrifying to have your vehicle control itself and you don’t know when it will start to accelerate again so for the most part, I am shutting the cruise control off and on constantly. At our most recent Hyundai service appointment for this problem, we were told by Hyundai Care Manager that this is exactly how it’s designed and there is no problem. And we’ve been told just simply don’t use the cruise control at all. That is not a solution. We feel like all these “safety” features are creating a sense of driver coma on our roads. Instead of the left lane being used for faster cars as a passing lane, the adaptive cruises are creating a chain of vehicles that are well under the speed limit

8/20/2021

Smart Cruise Control relies on the inconsistent and consequently unreliable performance of the of the front-mounted radar. Otherwise-reasonable operation of the Cruise Control would abruptly terminate 1/3 to 1/2 of the intended use-time, illuminating the master warning light (the amber triangle with internal ‘!’) that was accompanied by either a ‘1’ or ‘2’ encircled by red and may or may not have included the Collision-Avoidance warning light. Subsequent examination of the rectangular shield in the center of the grill very rarely revealed more than 2 bug remnants. When the Smart Cruise Control was in operation it would abruptly apply the brakes when approaching or passing a truck in the lane to taffiche right. There appeared to be no similar conditions to the size or shape of the truck or trailer when these events would occur. None of these events applied to congested tr conditions, just otherwise open road. The ’21 Hyundai Santa Fe does not appear to accommodate any mechanism to revert to conventional cruise control, omitting the influence of the erratic front radar system. Trips to two dealerships have yielded no redress to this malfunction.

9/28/2021

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while her vehicle was parked in her driveway, the rear windshield shattered without incident. The contact also mentioned that repairmen who happened to be on her property at the time of the failure had witnessed the failure occur without incident. The dealer was notified of the failure and the windshield glass was repaired under car's manufacture warranty. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 10,000.

2/16/2022

The contact owns a 2021 Hyundai Santa Fe. The contact stated while his wife was driving 60 MPH, she thought a small rock had struck the windshield and made an 8-inch horizontal crack form the driver’s to the passenger’s side windshield. The contact took the vehicle to the local dealer, where it was diagnosed with needing the windshield to be replaced. The vehicle was repaired. The contact stated a month later while his wife was driving the vehicle, she heard an abnormal noise on the windshield. The driver parked the vehicle but did not notice any cracks. The contact stated later on that day, his wife noticed an 8-inch horizontal crack form the driver’s to the passenger’s side. The contact called local dealer and made them aware of the failure. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 7,000. The VIN was not available.

3/22/2022

17551 mileage. Parked vehicle. Placed in Park, set parking brake. Drivers seat moved full forward and leaned forward pinning me against the steering wheel forcing the breath out of me before I was able to stop the spontaneous movement. Restricted my breathing could have injured my ribs had I not stopped it.

7/21/2022

Seat full forward, into the dash with no input from operator. SECOND OCCURRENCE 08/04/2022 at 1700 Central time when parking the Santa Fe in the garage. When turned off, the driver's seat ran full forward and reclined forward into the dash - unsafe and potential injuries -- have a photo. I will be contacting the local dealership tomorrow to schedule an appointment for an inspection and routine maintenance. Since this is no longer an isolated occurrence we will be asking our dealer for assistance. Complaint Number 11475184

8/4/2022

The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 21V524000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available and would not be available for another three months. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

9/20/2021

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while driving at various speeds, the vehicle would not immediately accelerate while depressing the accelerator pedal. The contact indicated that the RPM would increase however, the vehicle would hesitate to accelerate causing a safety hazard while pulling into traffic. The vehicle was taken to the local dealer who was unable to diagnose the cause of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 50.

5/5/2022

While driving the crash avoidance emergency braking came on out of nowhere, and the steering locked up. I was driving on a straight and level roadway with no vehicles in front of me when suddenly the whole dash lit up with warning lights and the car, a 2021 Hyundai Santa Fe, came to a emergency stop, the steering wheel was shaking and wouldn't turn. This was the second time this happened. The first time on 09/29/22 I called the car dealer and was told that "They knew of the problem and that there was no remedy". This is extremely dangerous, both times it happened while I was driving on a highway at a steady speed, thankfully the roadway was dry if it had been raining I would have probably crashed.

11/13/2022

The contact owns a 2021 Hyundai Santa Fe. The contact stated while the vehicle was stationary at a traffic light, the vehicle turned off and on intermittently. The contact stated no warning light was illuminated. The contact took the key out of the ignition to completely turn off the vehicle. The contact was able to restart the vehicle and drive to her destination. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The contact received notification of NHTSA Campaign Number: 23V181000 (Trailer Hitches) however, the part to do the recall repair was not yet available. The contact associated the failure with the recall. The local dealer was not contacted regarding the recall. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer had not been informed of the failure. The failure mileage was approximately 20,000. Parts distribution disconnect.

6/6/2023

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while self-inspecting the vehicle, the glass located above the windshield and sunroof showed cracks. Additionally, parts of the glass had detached. The vehicle was taken to the dealer, who informed the contact to contact the insurance provider. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 35,000.

6/9/2023

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while stopped at a traffic signal, the vehicle hesitated while depressing the accelerator pedal. The contact stated there was no warning light illuminated. The contact stated that the failure was intermittent. Additionally, the contact stated that while the vehicle was in reverse(R) the back over protection camera screen was black. The contact stated that after turning off the vehicle, the reverse image screen operated as needed. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 16,000.

2/22/2024

The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving at various speeds with an occupant in the passenger’s side front seat, the air bag light off message was displayed. The vehicle was taken to the local dealer, where it was diagnosed that a software update was needed. The vehicle was repaired, but the failure recurred. After driving the vehicle, the air bag off light message was displayed. The vehicle was taken back to the local dealer, where it was diagnosed that an unknown module needed to be replaced. The vehicle was repaired, but the failure recurred. The dealer informed the contact to remove the cushion. The vehicle was taken to another local dealer, Coconut Creek Hyundai. Coconut Creek Hyundai Service informed the contact that the system failed to recognize the occupant due to a cushion in the seat. The dealer informed the contact to replace the cushion with another cushion. The manufacturer was contacted, and opened a case, but no assistance was provided. The failure mileage was approximately 16,000.

3/14/2024

The contact owns a 2021 Hyundai Santa Fe. The contact stated that the horn had become inoperable. There was no warning light illuminated. The dealer was notified of the failure and informed the contact that the failure was a common failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 55,000.

3/4/2025

Ever since I have purchased these tires I have been experiencing extreme violent vibration between 60 to 75 Mi an hour on the highway at first I wondered if something was wrong with the balance on the tire so I had them checked at the dealership twice and then I went to another dealership because the problem continue and had them checked same results no issues the balance machine only goes to 55 mph then I took it to a private garage paid out of pocket for the diagnostic twice because the problem over time persisted I also had an alignment done out of pocket and the problem again persisted I did a little research yesterday and there's many threads and forms in which people have complained about the exact same problem with the exact same tires I have screenshots I have video of my car doing it this is a manufacturer's defect that I'm trying to get addressed before somebody gets killed I have spoken to Pirelli corporate itself about this they're going to be issuing me a warranty claim let's see how far I get with that but the problem still is out there for others

5/23/2025

The contact filed the complaint on behalf of the contact's mother. The contact owned a 2021 Hyundai Santa Fe. The contact stated that while the contact's mother was driving at an undisclosed speed, the vehicle was crashed into by an oncoming vehicle. The other vehicle crashed into the front passenger's side close to the front bumper area. The driver's side door independently opened, although it was secured and locked prior to the crash. The contact stated the vehicle spun around and flipped onto the driver's side. In addition, the contact's mother's left leg and left foot were pinned underneath the vehicle. The vehicle was towed to a local tow yard. The vehicle was condemned as a total loss by the insurance company. The paramedics and Police arrived on the scene. A Police report was filed. The contact's mother was transported to the local medical center. The contact's mother sustained compartment syndrome, the big toe bone was broken in two places, and the left foot was broken. The manufacturer was made aware of the failure. The failure mileage was unknown.

5/27/2025

I am writing to formally express my deep concern and dissatisfaction with the ongoing quality and safety issues I have experienced with my 2021 Hyundai Santa Fe, which I purchased new in March 2021. Despite regular maintenance and careful ownership, this vehicle has presented a persistent pattern of failure—most notably involving the electrical systems, onboard cameras, and overall build quality. Specifically, the following issues have occurred: •The rear backup camera has intermittently failed for an extended period, frequently displaying a black screen or static lines, rendering it unusable. •The front camera system has now failed entirely, disabling several advanced safety features. A warning alert is permanently displayed on the dashboard and cannot be dismissed. •I was recently informed that repairing this front camera will cost approximately $2,400, a significant expense for a system that should not fail this early in the vehicle's life cycle. •The overall quality of the interior materials has proven to be poor, with excessive wear and inconsistent performance of various controls and features. •In general, the engine power and performance fall well below expectations, especially given Hyundai's advertised standards. These recurring issues have not only affected our driving experience but have also introduced serious safety concerns, particularly as critical systems such as cameras and driver-assist features are now non-functional. We have never experienced this extent of problems with any vehicle in our ownership history. At this point, we are extremely disappointed and frustrated, and we feel that Hyundai has failed to uphold the level of quality and reliability expected from a modern, family-oriented SUV.

5/27/2025

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while driving at an undisclosed speed, the controls on the steering wheel became inoperable. In addition, the air bag warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with clock spring failure. The contact was informed that the clock spring needed to be replaced. The vehicle was not repaired. In addition, the contact stated that the Department of Motor Vehicles declined the registration renewal due to the failure. The manufacturer was made aware of the failure, and several cases were filed. In addition, the contact was informed that the repair was not covered under the recall nor special program. The failure mileage was approximately 60,000.

10/7/2025