Coming to a stop and then turning and accelerating out of a driveway, the vehicle fails to respond to pressing the accelerator. It goes all the way down to the floor, and nothing happens. Keeping pressed, nothing happens. I release the pressure on the pedal and "feather" press the accelerator up and down, and it finally starts to function. Very dangerous as one is entering traffic and worse when crossing onto opposite traffic.

This has occurred since day 1. First time, service was to update transmission eprom, but problem returned. Of course, dealer mechanics claim total ignorance. This is a safety issue since it occurs when merging into oncoming and often high speed traffic.

The problem is intermittent and inconsistent, but you can't miss it when it occurs. It's like a quick stop, turn the wheel and quickly accelerate, the transmission/engine pauses as if confused, since everything is electronic and not mechanical connections. It's really a programming bug.

Several instances when turning right from a Stop sign, with oncoming traffic at 40 mpg, I had plenty of room to enter the intersection and proceed. But when I entered the intersection turning right, I had no additional forward momentum when what seemed to be going into 2nd gear. I kept applying the accelerator pedal and the engine kept revving up. I had NO transmission engagement! Letting off the gas and reapplying was my only recourse and thank goodness it did indeed take off and go! However, had this been a higher speed limit area, I am afraid someone would have hit me from the rear!

I see this as a huge safety issue! In reading enthusiast car forums, I am finding that this it NOT an isolated incident, and that others are also having this issue!

Since purchasing the vehicle in March 2017, this has happened (3) times. Sometimes the traction control light in the right side of the dash console will flash. This was on DRY PAVEMENT!

My vehicle is the Santa Fe Sport 2.0L turbo Ultimate AWD edition. From other posters, it appears this model is more susceptible to this issue than perhaps others.

I have had my vehicle to the dealership, and as nice as they are, they cannot duplicate the problem. I am hoping Hyundai provides a software fix for the transmission to stop this horrible issue!

Many occurrences: Car cold (12 hours). Go to stop sign, pull out into traffic turn right, accelerate. Traction control light comes one (roads dry) and car does not respond to gas pedal. +++dangerous as car has serious lack of acceleration which could cause accident.(Happens only when cold). Also find that the slow-down-then-accelerate problem reported by others I have seen as well. +++ dangerous in pulling out into traffic. I had 2012 Santa Fe for 5+ years prior to buying the 2017 and now this vehicle worries me. I am a professional performance driver (paramedic), and I drive a wide variety of vehicles in a wide range of conditions as well as having a vintage Porsche super car. The new 2017 Santa Fe has something wrong with its transmission control system.

Update from Apr 16, 2017: Think I may have a handle on the lack of acceleration problem. It appears that when accelerating from stop, if you drive through a pot hole (it's Spring in Canada so not too hard to find one) the tiny bit of wheel spin triggers the traction control system. This in turn takes 4-6 seconds to decide to turn itself off. While doing this, you have very little acceleration capability. Its quite dangerous in my opinion as you might be pulling into traffic. I tested this theory at my favourite pot hole outside of work by disengaging the traction control and viola! No problem. Seems like the traction control is too sensitive, confusing pot holes for slippery roads.