general problems of the 2021 Hyundai Santa Fe - part 1

Car misfiring symptoms like rough or shaky idle, hesitation and loss of power during acceleration, stumbling, unusual popping/backfiring noises, poor fuel economy, and a lit check engine light. Felt vibrations / heard sputtering sounds, as if the engine skipped a beat, often becoming more noticeable under load or when accelerating. Sometimes, the issue goes away after restarting the engine.

While traveling interstate 75in florida en route to venice Hyundai for routine oil change at 65 mph, vehicle rapidly slowed to 40mph, driver pressing on gas pedal but vehicle would not accelerate( while being tailgated by semi that was flashing warning headlights at me). There was burning smell while this was happening. Pulled onto shoulder and called Hyundai service for assistance tow truck brought me in. Vehicle inspected by Hyundai venice technicians ran through computer tests all ok, tech drove vehicle not able to reproduce problem. Oil changed tired rotated. Instructions included not able to do any repair because cannot find anything wrong with vehicle please contact us if problem recurs. I have had several conversations with service advisor voicing serious safety concerns regarding driving this vehicle and informing him that what occurred was my car went into failsafe/limp home mode which is what happens when there is serious problems with vehicle and should not be driven till repaired. And cannot repair until computer finds a code signifying problem.

The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving at an undisclosed speed, the vehicle unexpectedly shifted to neutral(n). The contact pulled over to the side of the road and attempted to restart the vehicle; however, the vehicle failed to start with the check engine warning light illuminated. The vehicle was towed to a dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 67,000.

The contact owns a 2021 Hyundai Santa Fe. The contact stated that the vehicle was hesitating after a cold start. While driving at unknown speeds, the vehicle lost motive power. The contact was able to pull over and restart the vehicle. The contact's husband restarted the vehicle, and the vehicle operated as designed. There were no warning lights illuminated. The local dealer was not contacted. The contact related the failure to NHTSA campaign number: 22v746000 (power train). The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 41,122.

While driving and must stop due to traffic light, stop sign or intersection and the auto start is on as soon I lift the foot foot from the brake pedal to continue driving the vehicle stumble and it completely stop the engine while the vehicle transmission is still in drive. In order to start again I have to switch transmission to park and turn key ignition switch to start vehicle, it start again and I can continue. While driving and must stop due to traffic light, stop sign or intersection and the auto start is on as soon as I lift the foot from the brake pedal to continue driving the vehicle stumble and it completely stop the engine while the vehicle transmission is still in drive. When I take the vehicle to the dealership the service writer writes on the computer but they do not allow me to see a copy of what I am reporting. I like my vehicle, I just want it to be fixed and me and my two daughters be safe when needed after a mandatory stop due to traffic signs, intersection driving through or any other emergency stop and go due tragic and or road condition.

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.

The contact owns a 2021 Hyundai Santa Fe hybrid. The contact stated that while driving at various speeds, the vehicle lost motive power. The contact was able to restart the vehicle; however, the vehicle failed to exceed 40 mph. The contact stated that the failure reoccurred several times while driving. The contact stated that on several occasions, the vehicle lost motive power. A message indicating that there was no power was displayed, and the check engine warning light was illuminated. Additionally, a red hybrid warning light with a stop safely message was displayed. The contact state that the Hyundai app displayed the power train and chassis indicated the contact needed to schedule a service. The vehicle was towed to the dealer, where it was diagnosed and determined the vehicle had either bad fuel, or the vehicle was refueled while the engine was running. Additionally, the gas cap was left opened. The contact stated that the failure persisted, and the vehicle was taken to the dealer several times. The dealer replaced the rocker cover gasket and oil gasket to resolve a leak. The vehicle was at the local dealer awaiting field technical engineer inspection. The vehicle was not included in NHTSA campaign number 22v746000 (power train). The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 31,000.

The contact owns a 2021 Hyundai Santa Fe. The contact stated that while driving at various speeds, the vehicle suddenly lost motive power and stalled. The contact was able restart the vehicle; however, the vehicle failed to exceed 30 mph. The contact stated that the failure reoccurred several times while driving. The contact stated that on several occasions, the vehicle failed to restart, and the vehicle was towed. A message indicating that there was no power was displayed, and the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the intake valve had failed. Additionally, an unknown recall repair was performed on the vehicle. The contact stated that the failure persisted, and the vehicle was taken to the dealer several times. The dealer was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 25,000.

April 2022 my 2020 one, Honda Santa Fe started rolling backwards in rolling to a flagpole as I was walking away from the car. I tried to to catch up with the car. It had my family inside screaming. But I was unable to stop it from slimming into the fireplace. I let Hyundaiusa know. They recommended that I take the car to the dealer. They promised to reimburse me for rental car after the diagnostic came back. They found nothing wrong with the car and never paid for the reimbursement now September 2023. Same thing just happened again. I was in mcdonald's drive through and I drop my debit card so I got out to get my debit card. I got out of the car and had to close the door and as I bend down at sensed the car start starting to pull away. The car once again started running away for me. I was outside the vehicle, but I was able to jump in the car and apply the brake before it slammed into mcdonald's. I have made a police report. And I have a witness from mcdonald's that saw the incident. I had already reached out to the attorney general's office about the first time the car rolled away from me in April 2022. They claim that my Hyundai found nothing wrong with the diagnostics. There was no argument I can make except for being called a liar. The mechanic did a little demonstration showing us how the safety mechanism in the Santa Fe makes it impossible for the car to roll out of park if the doors open or. How it's impossible. Even if the door is open, it shifts back to park. If you hit the drive button with the doors open it automatically shifts to park. . . So there's supposed to be "no way. The car can shift out of park into drive or neutral. " it rolled away in 2022 April, and it did it again September 2023.

During low speeds the car stalls out which could cause a safety issue for my family.

When I press the pedal to acelérate it has no power to move on drive or reverse and other problem power off when I drive on the road.

I have been having problems with the vehicle. Apparently it has problems with the start-stop system ; the car turns off even while driving , sometimes it turns on and off by itself while driving . Took it to the dealer and unfortunately this continues to happen. It worries me because while driving on the expressway it turned off and then on by itself leaving me without control of the vehicle for a few seconds . Another incident was in a drive thru, it turned off completely ; I hit the breaks but everything got locked / hard making me hit the yellow pole of the drive thru . Very upset with this vehicle another issue is the ac stopped working only with 26k miles. Still waiting for the appointment it’s been 2 weeks and no one solves this issue. My lease is also over but I want to let everyone know this is not vehicle for you. I do not recommend.

From what I have been told there is no recall on this issue. Purchased a Hyundai sante fe hybrid 2021 brand new in 2021. I live in la quinta California summers are especially hot. Temps can be anywhere from 105 to 120 . Only had the car for 6months when in light came on saying inverter needs coolant this has been a problem for the past 2yrs. Checked with Hyundai service department my coolant is fine air conditioning works well. This not a safety issue but should be fixed and Hyundai is doing nothing about it. Many complaints have been ignored.

Whenever the weather gets above 80 degrees outside my car put a notice to refill inverter coolant, when everything is filled max line. I’ve mentioned it twice to the Hyundai service and both times the employee told me not to worry about it and it is a sensor issue. That is unacceptable, I live in las vegas, nevada where temperatures on average in summer are 90+. That’s a big risk an unnecessary danger to have my car engine over heat and stop in the middle of no where and potentially leave me stranded or worse cause an accident or fire. On top of that I have to see the message every day in the summer temperatures, without any way to remove the message. This will be the 2nd summer I’ve seen this message appear in my car, and I’m tired of the dealership & their car service staff telling me this is nothing to worry about… especially on car not even 4 years old!.

There were 2 instances where my vehicle stopped. Once I was driving 15mph and it said “put car in park”. The 2nd, I was driving 45mph and the vehicle said “step on the brake to start car”. I have also had 2 instances where my odometer just keeps going up and down. He 2nd instance, the car was making a ticking noise and hazard along with other lights were flashing.

When driving on the highway the SUV would not change gears. It felt like it was stuck in 1st gear, reving very high. Was unable to move the SUV to the side of the road. Came to a stop with heavy traffic blowing there horns. Put the SUV into park, switched it over to sport mode and was able to get going. This is the third time the SUV has lost power. Also have noticed the transmission has been taking to long to change gears.

The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving 70 mph, the vehicle lost motive power and stalled without warning. The vehicle was not able to restart and was towed to the dealer. The dealer stated that the engine needed to be replaced. The vehicle was repaired; however, the failure recurred two weeks later. The vehicle was towed back to the dealer where the failure was diagnosed as a computer mapping failure which was resolved by the replacement of an unknown part. The contact stated that the dealer informed her that they could not provide a detailed repair bill without contacting the manufacturer for permission to provide it to the owner. The manufacturer was notified, and a case was opened. The approximate failure mileage was 37,500.

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.

There were two warning (?) "bings" from the instrument cluster and then vehicle completely lost power and would not exceed maybe 2 mph. Vehicle had forward drive, but no willingness for engine to speed up beyond idle speed. Was like this for several city blocks until I was able to restart at a traffic light and then it resumed normal operation. Did not notice any warning lights and no messages popped up in the instrument or vehicle display. Just the two "bings" before power loss. This is actually the second time this has happened. Last time was while accelerating on a freeway onramp, but vehicle corrected itself more quickly and without need for restart.

While driving 80 mph down the highway my brand new vehicle shut off completely, the entire car lost power. In another instance I was going around a roundabout and my acceleration completely went out, my son was in the back seat and another car had to jump the curb to avoid crashing into us. I met a woman in the dealership who has been waiting over a year for her recalled tow hitch to be fixed. When it rains or snows the forward safety systems shut off and the alert repeats extremely distracting on your dash, like sounds, red flashing lights, over and over again. You have to constantly hit the ok button while driving to get it to go away.

I was accelerating after being at a stop sign onto a major two lane road when all of the warning systems came on and the car stalled while the front of the car was partially on the major two lane road. The alarms, including the collision warning were going off, and it took me several minutes to restart the engine. I was very lucky that I was not hit by oncoming traffic. This was immediately reported to our local Hyundai dealer. They took two weeks to schedule our appointment and then told us nothing was wrong and that everything "checks out". Today, I receive the recall notice telling me the loss of power "could increase the risk of a crash" and yet they do not yet have a fix for it. This means I am paying for a car that is unsafe to use with no remedy in sight. Had this occurred on the highway, I would have been killed.

Recall 236 -transmission problem. Manufacturer has not resolved this issue to date putting lives in danger of injury or death.

The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving at various speeds, the vehicle stalled. The check engine warning light was illuminated. The vehicle was taken to the local dealer however, the mechanic was unable to retrieve a fault code. The contact stated that while her husband was driving approximately 35 mph, the vehicle stalled without warning. The contact was able to coast off the roadway. The vehicle was towed to the local dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was contacted but no additional assistance was provided. The contact stated that the failure was related to NHTSA campaign number: 22v746000 (power train). The approximate failure mileage was 13,000.

Car was bought approximately a year and a half ago and it was working fine until last September 2022 when it started to stall the engine when having isg (idle stop and go) on. It has no pattern, but during the last 2 months it has shut down more than a dozen times. I've taken the car for inspection at Hyundai (2 times so far) and they can't find any faults when running a scan and said that they car is just fine. They assured that an ecm update would solve the issue but it has not improved anything in the car. The car has continued the pattern , when you stop the car it starts to shudders before stalling the engine, all without any error lights. Next November will be the third time bringing the car for the same issue without any resolution. Also, as a minor problem, it has started disconnecting the cellphone from the apple car and you can't reconnect it unless you turn off the car.

While driving on the highway, when I pushed on gas pedal the car would not accelerate, I was uncertain if I was losing power of the vehicle, luckily it maintained the current speed and did not decelerate,but I was unsure at the moment if I was losing complete power, because it wasn't responding, it felt like the car was going to stall similar to when you run out of fuel. This occured for around 20 seconds, I would guess, long enough to notice that the car was not responding and continued to not respond,and to be concerned from a safety perspective. The night before I had filled the fuel tank and I noticed to guage that predicts fuel mileage kept changing by 3-5 miles difference,back and forth repeatedly, before I even left the fueling station and as I continued to drive. I'm unsure if that is related to the driving performance issue of not accelerating the next day. The next morning when the non acceleration occurred the predicted fuel mileage was consistent. The next time I drove the vehicle following the non accelerating issue, there was an error that popped up on my digital dash stating "a possible condition with your engine control system has been detected. A full system check is recommended to be done when convenient. Please contact your local dealership to schedule an appointment. " also, the check engine light came on. Myhyundai app showed a dtc - p040b00, dtc system - powertrain, dtc sub system- ems. I took the vehicle to the Hyundai dealership to confirm that the car was safe to drive or if I should rent a car until it can be further inspected. They read the codes and said it is safe to drive and no additional information, I will be taking the car back to the dealership in a week, which is their first available appointment with a hybrid certified technician. Both the dealership and Hyundai corporate customer service states there are no current recalls, but through other car forums, it appears to be a similar issue that has occurred with other Hyundai models.

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.

The contact owns a 2021 Hyundai Santa Fe. The contact stated while making a turn from a complete stop, the vehicle responded but suddenly stopped. There was no warning light illuminated. The contact turned off and restarted the vehicle 5 minutes later. However, upon depressing the accelerator pedal, the engine made abnormal roaring sounds. The contact was able to drive after several attempts and pulled into a parking lot, however, the failure reoccurred. The contact restarted the vehicle and pulled into a parking spot. The vehicle was towed to the dealer where the failure could not be duplicated. An unknown software update and an unknown repair were completed; however, the vehicle hesitated to respond while driving and depressing the accelerator pedal. Additionally, the check engine warning light was illuminated. The vehicle was taken to a second dealer, key Hyundai (4660 southside blvd #100, jacksonville, FL 32216) where it was diagnosed that the transmission needed to be replaced and that the failure was associated with NHTSA campaign number: 22v746000 (power train). However, the parts for the recall repair were not available. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure and a case was filed. The failure mileage was approximately 11,900. Parts distribution disconnect.

I took my car to the dealer because it hesitates when accelerating. I was told since no lights are on there's nothing they can do. This can be very dangerous as it jerks when accelerating.

Car was without power after 16 months and 7500 miles. Got it jump started. Two days after that, car would not start again. Second time jump started. Taken to the dealership (alexandria Hyundai) where two days after that they found "nothing wrong with the car" and returned it to me. Before that, I asked them to change the battery, they denied my request and I paid out of pocket for a new battery as maybe that was the problem. One month approximately after that, car would not even open. Got it jump started again. Drove to blocks and completely and suddenly shut off in the middle of a busy intersection posing a major safety concern for myself and third parties. Involved 911 and towing. Had to spend 40 minutes depressing the brake for the car not to roll down and avoid an accident. Taken to the dealership again. 5 days after that, dealership found "nothing wrong with the car". 7500 miles inspection done in parallel "supposedly" put the tires at 35 psi per report issued but dashboard shows tires at 30 psi. Do not trust dealership, car poses significant driving and safety concern for me and third parties.

When isg (idle stop and go) is on, vehicle will completely turn off when pressing brake to stop. Vehicle shut off on me yesterday yielding to turn onto a busy highway. It took 5+ mins for vehicle to crank back up. Very dangerous! no warning lamps, messages, or symptoms other than vehicle completely shutting off. An appointment has been made at Hyundai dealership next month which is the first available time. Please look into this issue before someone is seriously hurt or killed!.

This car since 6/7/22 has been plagued with issues where is starts cutting out and stalling followed by the check engine light coming on flashing. This has happened many times and just happens while driving down the road. It is a very dangerous condition as you can not predict when it's going to stall out. The car has been in the dealership 3x for this problem and spent over 40 days there. Hyundai replaced the fuel injectors claiming that was the problem. It was over 35 days to get the back ordered parts. They were replaced and the car seemed to be running ok. I drove it for about 150 miles and it ran like new. Then on 8/13/22 while driving in traffic on nh highway us1, it started doing it again. I went into the Hyundai dealership since was right there. I brought the technician out and showing him my running car with the running car with blinking cel. They pulled into into the shop and ran a scan on it. They said there was no active codes. I asked to leave the car with hem so it could be investigated and there response we "we don;t have a car for you until next Tuesday". I was forced to drive off in a confirmed dangerous car. I pulled out into traffic on us1 and the car immediately lost power and started cutting out and the cel was back on and blinking. I turned around on the very next street, turned the car off and back on and the cel cleared. I pulled back onto us 1 and the car immediately lost power and started cutting out and the cel was back on and blinking again. This very nearly caused a 2nd accident as ad zero power to accelerate. My concern is Hyundai has no idea what the problem is. They know there is a dangerous problem. The service manager drove the car/confirmed himself there is a serious issue. My other concern is the Hyundai dealership knowingly sent me away in a car they had confirmed for themselves was unsafe nearly causing a accident on the highway. I had to speak with the general manager to get a loaner to leave my defective car.

The vehicle sporadically turns off its engine by itself, mostly stopped when placing the transmission in park gear. One time the engine went out in the middle of the avenue. After these events when starting the engine it makes a noise for a few seconds. I have taken the vehicle to the dealer and they say that there is no type of technical bulletin on this type of problem.

Problem #1 - at least 4 quarts of oil spewed from the oil tank and covered most of the engine for an unknown period time. There were no notifications, alerts, or any other indication concerning the oil tank having 1 or less quart of oil. Ultimately, there are at least three (3) questions that need to be addressed 1. In a 2021 Santa Fe, what would cause both the timing and valve covers to leak out at least four (4) quarts of oil out of the oil tank onto the engine. 2. Why was there no notification, alerts, or indication that the oil tank only had less than one (1) quart of oil. 3. What other damage could there have been to the engine beyond the several parts identified as needing to be replaced, that was not identified. A chronological order of events is available.

My sante fe has shifted out of park and rolled away from me on 2 occasions. The first time I was about 30 feet away when my son and husband started screaming for me. The car we rolling across the parking lot. I tried to jump in and hit the brake but was unsuccessful and we slammed into a flag pole. The dealer ran a code rrader on it and there was no codes so they denied responsibility. Basically called me a liar 10/23 it happened again in mcdonald's drive thru the window lady witnessed it. I got out to. Get my debit card and as I was leaning down the car rolled out of park snd started coasting away from me. I again, contacted my Hyundai who assigned another case manager. This cse manager promised to. Reimburse me for a rental I paid for the first time the car rolled away from me. The case worker had told me she set up an appointment at another local dealer and they would have a rental waiting on me the next morning I asked her to call amd confirm the appt and rental and to call me back never heard from her again after numerous calls and emails I recieved an email stating she could no longer assist me since I had obtained legal counsel. Complete lie I never informed them that I had retained counsel. I merely asked if I needed one. . This was their way of brushing me off for the 2nd time myhyundai has record of me calling trying to gather a resolution at least 30 xs. I have contacted the attorney generalz office who reached out to my dealer and my dealer told them they followed protocol and found no issue that would be a warranty issue of course they aren't wanting to admit that this is issue because this one case could cost millions in recalls. Now there are more and more people that have had the same experience and I fear there will be death before this is addressed. Please help !!.

Problem first started on 3/31/22, car starting showing engine light as well as forward safety system off. Car would not accelerate and was shaking spuddering when foot was off the brake. Pulled into a safe location and called towne Hyundai genesis of denville (rt. 10, NJ) to schedule a service appointment and was told that there were no appointments or availability until may. I expressed my concern that I did not feel safe driving the vehicle and the response was that I could drop off the car for 4-6 weeks and they would look at it when they had a chance. I asked if there was a loaner car available and they said no that 100's of other people have problems. I took my car to a local shop to see if they could diagnose the issue and they ran a diagnostic test and the error p2127 (throttle/ pedal position sensor/ switch e circuit low). The Hyundai bluelink shows 2 alerts for chassis on 3/31/22 as well. After this date I felt unsafe driving my car and have drove the vehicle a handful of times in 2 1/2 months unable to get an appointment. The alert would come on as soon as you turned the vehicle on until 6/4/22 when it occured while driving on a highway and the car stopped accelerating. I took the vehicle to Hyundai and they updated the system and stated that it was fixed. Within 15 minutes of driving it the issue came back, and I called them and they once again stated that I could leave it there for 4-6 weeks without a loaner. This car is extremely unsafe as it will just stop accelerating without any warning.