NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2021 Hyundai Santa Fe. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
Data synced from NHTSA on May 4, 2026
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.
The contact owned a 2021 Hyundai Santa Fe. The contact stated received notification of Hyundai Recall Campaign Number: 236, and the vehicle was taken to the dealer, where the 8-speed dual clutch transmissions (DCT) TCU software update was performed. The contact stated while driving 70 MPH, the vehicle shut off temporarily and almost came to a complete stop. There was no warning light illuminated. The contact was stated that he continued driving the vehicle. The dealer was notified of the failure and scheduled an appointment for a diagnostic test; however, the contact decided to trade the vehicle due to safety concerns. The vehicle was traded for another vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 15,600.
This vehicle has to replace car horn 3 time unsafe to drive this vehicle have opened repair . Unable to get load . have to Walt for service day .this vehicle have only 14000 mile I am disable person.
The contact owns 2021 Hyundai Santa Fe. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal. There was no warning light illuminated. Upon investigation, the contact discovered NHTSA Campaign Number: 22V746000 (Power Train) and linked the recall to the failure. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under the recall or warranty. A case was filed, and the contact was referred to the NHTSA Hotline. The vehicle was not repaired. The failure mileage was approximately 40,000.
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.
Once again on 7/18/2023 (P1C2D03) and 8/15/2023 (P1C2E92) DTC for TCU issues VERY DANGEROUS condition, fails to accelerate from stops at signs and traffic lights, then nearly stalls in traffic lane bogging down, and cuts out decelerating when accelerator pushed to floor, risking being rear-ended by following cars. By the time car is ready to take to dealer for analysis the fault has corrected and there is no active code for diagnosis – been repaired twice but continuing TCU codes. SEEMS to be same issue as Recall 236, don't believe the fix is effective
The panoramic sunroof which is made of tempered glass is a large piece above the back passenger. There is also a small piece above the windshield. The sunroof sits in between these two pieces (not made of tempered glass). I noticed a crackling sound driving my daughter to day care on Friday August 11. I couldn’t figure out what it was. The next day I was on the highway, my husband driving our car and my toddler in the back when there was a loud pop like a gunshot. We pulled over assessed the car and realized the panoramic roof was shattering. We drove it home and realized the front piece above the windshield was also shattering and there was no impact. I googled this and apparently it’s happening to a lot of people and the dealerships aren’t helping saying it’s not a manufacture defect when in fact it is. There was no impact that caused this. Anyone else would have lost control of the car and crashed hearing that loud pop or if the shade was open we could have had glass showering down on us. This is unacceptable if anyone would have mentioned this would happen I would have never bought this vehicle. I filed a claim and State Farm paid the claim to have it replaced but this car is only 2 years old and it should be under warranty and this is a definite defect. Please google panoramic roof shattering and see what comes up. I don’t think enough people have reported this although some people have commented that they have so I’m not sure if this is currently under investigation. If not please help
The vehicle will accelerate unexpectedly without using the accelarator. Usually this occurs when releasing the brakes and on a slight incline.. To date no injuries or damage has occurred due to this. My dealer has not reproduced this defect as far as I know. This vehicle has nor been inspected by the daeler or insurance reps to my knowlwdge. There is no prior indication that an acceleration will occur-no lights or any warnings. This issues has occurred several time within the last year.
Hyundai filed Recall Campaign 236 for the vehicle entering an unsafe state. On July 10th I took in our 2021 Santa Fe Limited with just over 15,000 miles, which had been operating normally with the serious safety defect and received the Remediation for this recall filed under NHTSA Recall Campaign 236. I took possession back of the vehicle and within a few miles of driving had the exact issues the recall remediation was supposed to fix, occur. I lost the ability to safely control the vehicle followed by multiple warning lights displaying and then experienced full loss of power. I could not signal or use emergency blinkers while going at speed on I-405 between mile marker 5 and mile marker 6, this placed everyone around me on the highway at risk. I am deeply concerned that the Recall Remediation for Campaign 236 may not work.
The automatic emergency braking has engaged 6 times while backing up and there has never been anything behind the vehicle.
My vehicle loses power on the highway intermittently. I had my car set on cruise control at 55 and with no other vehicle in front of me the speed decreased to 45. It frequently sputters going up hills. My car has had 4 oil leaks.
24 Jan 2023 I had this Santa Fe repaired at the dealership for Recall #236, oil pump transmission code DTC P1C2E92. They claimed the software update fixed the issue. On 27 May 2023 the same code was transmitted and the vehicle entered a safety mode preventing driving it. Hyundai towed the vehicle to a Dealership in Florida (Hampton Hyundai, Fort Walton Beach). They did the same corrective action - the transmission "relearned" the software. Hyundai USA claims it "could" be for a different issue. I sounds to me like their recall repair did not correct the issue. Having a vehicle shut down with 20 seconds to pull over every 4 months does not seem like an effective recall correction.
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.
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.
My transmission keeps slipping. I was on freeway this time and it slipped out of gear but it was like I pushed all the way down on pedal the RPM went way up so I had to wait until it slipped back into gear to be able to continue on down the freeway. I backed up traffic for a minute because I can't put on gas until it goes back in gear.
Transmission goes out of gear while driving. It was taken to Hyundai for inspection 5 times. Goes out of gear when driving. Making a turn at a light, the car stopped in the intersection, I could have been hit by another car. Car was taken in for a transmission recall on 02/07/2023, ever since they reset the transmission, the car goes out of gear again. It didn’t happen before recall and computer reset. The car has been back to the Hyundai dealer on at least 5 times and has been there for a full week now. They still have the car. The dealership said they can’t reproduce the problem. No warning lights when taken for recall, however, transmission warning light came on the last 2 times taken to the dealership.
Horn stopped working
After jacking up the car to do a tire swap from winter tires and wheels to the OEM tires and wheels on the front passenger side using the factory supplied scissors jack the vehicle rocked slightly, causing the jack to fall over and the vehicle to drop. I had already completed the tire and wheel swap on the driver side of the vehicle without incident. At this point the lug nuts were loose but had not yet been removed, so no damage to the vehicle occurred. This event happened in my garage that has a flat concrete floor with an epoxy coating. I was not touching the vehicle at the time. The vehicle was in park but the electronic parking brake was not manually set (not sure if that can be done). I believe the transmission (8 speed DCT) allows too much movement fore and aft before engaging the parking pawl that locks the front axles and prevents movement. Also, due to the height of the vehicle, the scissors jack must be extended near the very top of the maximum lifting height to raise the tires about 1/2" above the ground level, where the jack is naturally the least stable. I used wheel chocks on the opposite diagonal corner for the remaining wheels. The jack sustained a bent threaded shaft but otherwise appeared to be ok and the support arms did not seem to be bent. I will be replacing this jack with a sturdier unit soon and will not use this one again, however I will keep it in case in its needed for examination.
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.
Front sunroof shattered on the interstate at 80 mph. There were no other vehicles near me and it was an unobstructed road (no bridges crossing the road) temperature was 40 degrees and sunny.
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.
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.
The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 22V746000 (Power Train) 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 dealer was made aware of the issue. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
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.
This happened on 18th January 2023, a day after I received a transmission related recall notice (Recall 236) from Hyundai. My car did not move when I put the transmission in "Drive". I restarted the car and then drove the car a short distance when the car stopped moving again. Then, there was a few seconds of mobility in which I managed to park the car in a parking spot. By this time, the "check engine" light switched on. I had the car towed to the dealership. The tow truck driver also tried to drive the vehicle, but at this point in time, the car just did not move in "Drive". The dealership inspected the car the next day and informed me that the transmission would need to be replaced and they had placed an order for the same, but the part won't come in before February. My car is currently parked at the dealership parking lot, and we are waiting on the replacement transmission to arrive from Hyundai. The transmission on this vehicle has always been jerky from the beginning, especially at lower gears. The car shudders when the transmission is shifted from Park to Drive. I read in online forums that this was because of the design of the transmission, so did not report. But this sudden breakdown of the transmission has gotten me worried.
THE MANUFACTURER HAS NOT ISSUED A REMEDY FOR THIS RECALL #22V746000 SINCE THE INITIAL FILING OF THE RECALL ON 10/6022.
Vehicle warning alarm activated, car went into limp mode for about 20 seconds, and then lost all drive. Warning message for Transmission Control Unit problem. Several previous temporary failures with no stored codes over past two or three months, one previously reported to NHTSA. Drive would not engage even after multiple restart attempts. The short amount of time and reduced speed could cause a serious accident. Very fortunate that I knew what I was happening and reacted quickly to get vehicle to side of highway. Dealer service has confirmed problem. Awaiting new transmission.
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.
The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 22V746000 (Power Train) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
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.
The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 22V746000 (Power Train) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. Parts distribution disconnect.
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.
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.
The vehicle will not move forward or reverse, when drive or reverse is selected. The car has been at the dealership since 10/11/2022. I was informed that the transmission needed to be replaced. No one in the hyundai organization (including the dealership) can tell me when replacement will be.
On October 10, 2022, while driving home from the hospital, my car unexpectedly entered limited driving mode (max 15 mph) for 10-15 seconds in the middle of the road and then died totally. Later, I discovered that it was due to a recall that was initiated on October 6th, Manufacturer Recall Number 236 & NHTSA Recall Number 22V746000, for which Hyundai did not give me a notice letter until December 8th, 2022. My automobile has been parked at the dealership since October 10, 2022, with no indication of when the transmission will be available to repair it. The Hyundai dealership diagnosed my car with the P1C2D03 diagnostic code and ordered a new transmission to replace it on or around 10/13/2022, but they haven't received it from Hyundai yet. I've followed up with both the dealership and the Hyundai incident case manager numerous times, but nothing has changed.
I have been aware of this SAFETY DEFECT/RECALL for over 2 months now yet Hyundai has no remedy planned thus placing owners and others on the road in serious danger. This is unacceptable and I wish to file a formal complaint with the NHTSA. (NHTSA recall number 22V-746)
The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 22V746000 (Power Train) however, the part to do the recall repair was unavailable. The dealer was contacted and confirmed that the parts were not yet available. 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.
The contact owns a 2021 Hyundai Santa Fe. The contact received notification of NHTSA Campaign Number: 22V746000 (Power Train) however, the part to do the recall repair was unavailable. 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.
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.
The transmission in my 2021 Hyundai Santa Fe has failed multiple times. The first failure occurred within the first two years of owning the vehicle. The car began jerking, hesitating, and struggling to accelerate, and the check engine light came on. The dealership confirmed a transmission issue and replaced the transmission under warranty. After that replacement, the same symptoms returned, and the transmission had to be replaced a second time, again under warranty. The most recent transmission replacement was only a few weeks ago, and the same symptoms are already returning — the vehicle hesitates, jerks, and occasionally loses power when trying to accelerate. These problems create serious safety concerns, especially when merging onto highways or crossing intersections. The hesitation and loss of power make it unpredictable and unsafe to drive. I have two young children who ride in car seats, and I no longer feel confident that this vehicle is safe for my family. Hyundai service employees have acknowledged that this is a known, recurring issue with this model’s transmission design. However, no permanent fix or recall has been issued, and I have been told to continue replacing the transmission under warranty until the coverage runs out. This approach does not address the underlying safety defect. The issue has been confirmed by Hyundai dealerships multiple times. The check engine light has come on before each failure. I am reporting this because repeated transmission failures that cause hesitation and power loss are a clear safety risk, and Hyundai has not provided a lasting solution.
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.
The contact owns a 2021 Hyundai Santa Fe. The contact stated while driving at an undisclosed speed, the vehicle was stalling with the transmission, check engine, and other unknown warning lights illuminated. The vehicle was taken to a local dealer on two occasions; however, the failure could not be duplicated. The contact stated that the failure recurred on several occasions. The vehicle was then taken back to the dealer, where it remained awaiting parts for the repair. The contact received notification of NHTSA Campaign Number: 22V746000 (Power Train). The manufacturer was made aware of the failure. The failure mileage was 13,483.
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.