The contact owns a 2017 Hyundai Santa Fe. While the vehicle was parked with the engine running and the gear in park, the gear automatically shifted into reverse and the vehicle moved backwards. The failure occurred without warning. The contact was standing on the passenger side with the passenger door open. The contact jumped into the vehicle and applied the brakes in order to stop the vehicle. The contact was able to stop the vehicle and pulled over to the side of the parking lot. The contact turned off and restarted the engine, and the vehicle returned to normal. The vehicle was not taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was 23,300.

- Chesterfield, MI, USA

Had this Santa Fe for a little over a year. I have noticed several instances of not being able to accelerate, or gain speed, especially when turning or starting from a stopped position, it hesitates to start to the point of almost being hit several times. I have taken it to dealer many times, and they keep telling me its the way I am driving it that the engine is like a standard vehicle, but that doesnt seem safe to me if I am trying to start driving and it wont go. When it does finally decide to go, it takes off way too fast and is like, it finally decides to shift into gear. Also while in park, engine revs to 2500rpm for no reason or idols at that RPM. It feels like the engine is pulling the car forward even when it is in park I have been given the run around so many times, I am tired of it. I'm not happy to see others have this issue, but I am also glad that others are experiencing the same problems.

- Morgantown, WV, USA

2017 Hyundai sante fe sport AWD - purchased in Oct 2017. Currently have 7525 miles on vehicle. I noticed acceleration hesitation immediately after making in city turns (from both stationary and in motion turns) as well as when getting on highway (in motion). I am retired and do not drive sante fe very often. The problems with acceleration after making stationary and in motion turns and getting on highway has always been present since day of purchase. I have noticed the problem has become more prevalent after taking a 1000 mile road trip this past August. The acceleration/ hesitation after turning is more noticeable and is becoming concerning because I have to press petal to floor to get the sante fe to accelerate properly to get out of way of on coming traffic. Hesitations/acceleration problems occurs after turning and when entering a freeway. Very poor engine performance given the vehicle cost of $35,000. I owned a 2011 Hyundai sonta for 6 years and had the same 2.4L engine and I never experienced any engine hesitation like I am now with the 2017 Hyundai sante fe sport AWD.

- Oklahoma City, OK, USA

Multiple times while attempting to accelerate the rpms will go up and the car does not move. When it finally goes the car will jerk and the rpms fall. There seems to be a loss of power when this happens. Also seems to happen when making left hand turns across traffic, which can become dangerous with oncoming cars. This happens when attempting to accelerate.

- Kansas City, MO, USA

At stop when turning right are left and accelerating the transmission fails to respond ad the car stalls then will go. If slow to slow speed and accelerated the car will stall before shifting down. This problem is a safety hazard. Took it to hyuandi dealer at 3000 miles was told it was normal.

- Alma, AR, USA

Severe hesitation when trying to accelerate from a stop. Occurs intermittently and happens when turning right or left. More likely to happen if road surface is rough that vehicle is turning onto. The vehicle will begin to accelerate and then lose acceleration. Although pressing the accelerator the car does not speed up even though the engine revs up. After about 3 or 4 seconds the vehicle then responds and begins to accelerate. This situation does not occur all the time. It may occur 3 or 4 times in a week. This is a safety concern because I have almost been hit from behind as a result of the vehicle not accelerating.

- Wilmington, DE, USA

Have owned vehicle since 12/16. Approx 6 times there has been an acceleration problem when changing lanes or turning. Have pushed the gas and nothing happened - engine does not rev or respond in any way to the pressing of the gas pedal. Its like the car is in neutral and then it will just all of a sudden re-engage. No warning lights; no indication when it will happen. Filed complaint with Hyundai but they are unable to recreate the problem and/or will not assist until they can. Dealer had car for two weeks and could not recreate so Hyundai closed our complaint. The date entered below is the last time it happened.

- Matthews, NC, USA

Hesitation when entering traffic--hair raising experience--there is a 3 to 4 second stop in the in the drive train--the control of the vehicle is gone-leaving one in a panic mode--also feathering the throttle at times there is no response--took SUV to dealer--they hooked up a monitor and with the service manager on board--- the vehcle did not respond when accelerating--I am told due to the information sent back through monitoring to the factory that the dealership could not ask for a buy back--my question is how can a co keep making and selling a unit that is defective ?--there are hundreds if not more similar cases on line with the same problems--I will not drive this vehicle on road--life threatening--if the dealership or co. Does not agree to buy back I will be forced to take further action--stand by--class action may be on its way!!!my case is pending--awaiting a response by either dealership or co.hope some one is far minded as to this continuing problem--after all this is the U.S.a

- Rural Valley, PA, USA

My wife and I have had the same intermittent problem since acquiring our 2017 Santa Fe brand new in the late spring of 2016. When turning from a stop or making a very low speed turn, and then starting to accelerate, the vehicle will stall and hesitate, not moving or "catching" for 1-2 seconds. This has happened to us approximately 6-8 times. And I've nearly been rear-ended on several of those occasions because I was stalled in front of traffic behind me, also trying to make the turn. Once I barely cleared the intersection at a light when turning left, having the Santa Fe stall in the face of oncoming traffic. I was nearly broadsided by swift moving, oncoming traffic. Someone is going to be killed if this problem is not fully addressed as soon as possible. The public needs protection and a remedy. I can't imagine Hyundai is unaware of this problem. I did a quick google search on the topic, and found many, many postings regarding this exact same set of circumstances. There were Hyundai message board complaints, NHTSA complaints, "lemon" law firms whoa are advertising, seeking potential 2017 Santa Fe owning clients, citing this exact set of facts. It's difficult to confirm exact dates, as this has occurred multiple times. The most recent time it happened was in early May 2017, at an intersection less than a mile from our home, making a left turn from a stop, with traffic lined up behind us.

- Chico, CA, USA

The vehicle fails to accelerate past the initial press of the accelerator from a stop leaving you committed in traffic without power for around 2 seconds. Stepping on the accelerator fails to produce any power. Just had the vehicle looked at by Hyundai who said they can find nothing wrong. Hyundai also said there are no bulletins or recalls. A search on the internet shows an alarming amount of chatter from other owners with the same issue. There is under 6000 miles on the vehicle and this has happened numerous times, intermittently.

- Rochester, NY, USA

2017 Santa Fe sport with turbo.when turning left into traffic from a stop or near stop, the acceleration studders or doesn't respond, it acts as though it isn't engaging the gears in the transmission. Very dangerous when trying to enter traffic, you start to roll, like you are releasing a clutch in a manual transmission, but it doesn't accelerate until you are committed to the turn. I noticed one time that the anti-skid traction indicator flashed, but I haven't looked each time. I haven't noticed the delay going right, but left it happens nearly every time. We have come close to being hit twice now. I called the dealership that we bought it at and they said that it could be the adaptive learning that needs to be reset. The vehicle learns from the driver and resetting it would cause it to learn over again. We have an appt to have it looked at and duplicate for them.

- Marion, IA, USA

2017 Santa Fe ultimate 2.0T. Car does not accelerate and lags. Happens at a lower speed and from a stop. Very scary when making a left turn and entering freeway.depressing accelerator and nothing happens for a second or more, then all of a sudden it takes off. At low speed in parking lot depress accelerator lightly and car takes off. When accelerating from a stop car will accelerate quickly while depressing pedal gently. Does not happen every time but is frequent enough to be concerned. Has happened since new.

- Buckeye, AZ, USA

Sometimes, when I press the gas to accelerate, my car does not go. It will move forward at a slow pace but then doesn't go as fast as I'm pressing the gas pedal, even though my rpms are increasing. This has almost caused an accident because the car does not perform as it should. Happened today for probably the 10th time since I've had the car, less than a month. Pulling out of a parking lot onto the street, my car move's forward very slowly then when I go to increase my speed the car doesn't go faster.

- Lyndhurst, OH, USA

When making a right, left, or U turn the power completely cuts out and the car is left drifting without power. Their is no response to pushing on the gas peddle when this happens. At the same time on the dash the orange traction control light comes on. This last for a number of seconds and then the engine starts to once again respond to the gas peddle. This problem has happened to me and my wife12 times since we purchased the car 3-1/2 months ago. The problem has occurred in all weather conditions from a standing start and a rolling yield or U turn. The problem has always occurred on a paved public, city/county, street I have had the car to two different dealers, one several times, and both tell me that their are "no codes showing" so that their is nothing that they can do. You have to experience the fright of loosing power while you're in the process of a right or left hand turn with traffic coming at you from one or both sides to appreciate how truly dangerous this car is. This is our 4th or 5th Santa Fe, up to now all of them have been great but I am afraid to drive this new car we have now.

- Fallston, MD, USA

Hit pot hole after stop and stability control stops power to transmission...5-8 seconds of no accelaration has caused safety issue when merging into traffic. Appears to be a very common problem on user based forums.

- Morrisville, VT, USA

Car hesitates to accelerate from a complete stop, accelerating while coming out of turn, or slowing down and accelerating again. Also seems to be using a lot of gas. Haven't calculated it yet but can see the fuel gauge lower as I'm driving. Car only has 17000 miles.

- Somerset, NJ, USA

2017 sta fe 7 seater:when going to a slow speed to almost complete stop then try to turn right from the intersection, the SUV can't find the right gear for few seconds then lounges abruptly that jolt your body forward and back from your seat.it shift beautifully when turning to the left or from straight line.it feels very weird and dangerous that you might hit the car in front of you or you might be hit from behind.I hope that your good office will investigate this problem before any accident happens.it makes me nervous every time I make a right turn.

- Orlando, FL, USA

My brand new 2017 Santa Fe limited hesitates badly when coming out of turns and attempting to accelerate...just short of coming to a stop. It is very pronounced when in eco mode, but is an issue to a lesser degree in the other two driving modes. Does anyone else have this issue? (I have an appointment soon to get it looked at, but was told that there is no adjustment that they can do.) it is unacceptable and I'm looking to hear if this is a common. The owners manual states that performance in eco mode is less. But this is very annoying and borders being dangerous.

- Brighton, MA, USA

2017 Hyundai Santa Fe sport 2.0 T when making a turn during acceleration, sudden power loss to engine. Usually happens in 2nd gear, especially after downshift from 3rd gear. Making a sharp left turn from a full stop caused the stability control to turn on and vehicle lost all power (RPM sat at 1500 RPM) for approx. 2 seconds. Almost got rear-ended. Another time, making a right turn on interstate onramp and right front tire hit a pot hole, vehicle lost all power for approx. 2 seconds (around 20 mph). Almost got hit. Making a left hand turn at turn signal (vehicle downshifted from 3rd to 2nd) and vehicle RPM went to 1500 and didn't move for approx. 2 seconds. Almost got hit. Accelerating up hill, slowed down for car in front of me (vehicle downshifted from 3rd to 2nd), approx. 20 mph. Went to accelerate again and vehicle sat at 1500 RPM with power loss for approx. 2 seconds. Several others report this same issue on the various Hyundai Santa Fe forums with the sport turbo. I know there was a tsb for the full-sized Santa Fe with the V6, but this is the swb (short wheel base) sport model with 4 cylinder turbo.

- Loudonville, NY, USA

I have the 2017 sport 2.0T model, and I am experiencing the same powertrain issue. When driving at slow speeds, there is a 3-4 second delay if power is needed suddenly. The powertrain just goes to sleep and nothing happens, followed by a sudden, dangerous lurch. The significant delay between the time the power is needed and the time the power is delivered, makes this car undrivable and highly dangerous. I'm not sure if it is a transmission problem ( slow to downshift), a software issue, or a turbo delay, likely all three combined. The result is that the car's performance is unacceptable, and highly dangerous. This problem occurs daily. This is my third Hyundai and my final one. Never have I experienced so much regret at buying a car; I want my money back. If Hyundai does nothing to rectify this issue (I'm not sure what they can do, as this seems to be a result of shoddy engineering) I will just sell my car just to get rid of this dangerous vehicle and eat the loss. My life and that of my family are far more important.

- Lone Tree, CO, USA