When coming to a quick stop the transmission has a shutter upon downshifting the shutters when you accelerate quick off of a stop light or stop sign. Also quick left hand turn hear a clunk coming from left side wheel. 2015 Sonata Sport 2.4L
View 7 RepliesI purchased a new 2015 Santa Fe Sport 2.4L ... transmission/acceleration issue. It's possible I just haven't had enough time to get use to this car but it seems to hesitate when I press the accelerator. Also, the transmission seems to annoyingly down-shift when I step on the break slightly or with a slight decrease in speed. Overall I love the car but I just wanted to see if this is something I just need to get use to or if I should be concerned?
View 11 RepliesI've been driving my wife's sonata to work this week and notice as I start to slow down at around 20MPH the car almost surges a little bit. Maybe I am not diagnosing it correctly but it's almost like it's downshifting rough.
View 37 RepliesMy daughter has a 2010 Sonata with a 4 cylinder and an automatic transmission. She is pretty frustrated with an intermittent problem. Every once in awhile, especially if the engine is cold, the car jerks while slowing down. She believes it is the transmission when it down shifts. I have driven the car and have not been able to duplicate the problem myself. The dealer recently changed the mapping for the transmission in hopes that would work but it hasn't. The dealer hasn't been able to duplicate the condition either.
View 52 RepliesI have an 09 Sonata that jerks when automatically down shifting just before coming to a stop or slowing to make sharp turn. Car has 130k miles and I've never changed transmission fluid. BTW...it's been a GREAT car!
View 7 RepliesI leased my 2015 Sonata Turbo w/ Ultimate Package back in November. Experiencing flare ups between shifts in the transmission. Every once in a while, specifically when cold, I will get a slight hesitation and slip in between gears 2 and 3. It doesn't happen too often, so I'm not that concerned about it..just wanted to see if others have seen the same thing.
View 4 RepliesBeen noticing in my 2016 Sport that there seems to be a lot of "play" in the transmission. Don't really know a better word for it. When I reverse out of my garage and put the car in drive, the car rolls back a bit. Like it's pausing a few seconds before going into gear. Don't want to take it back to the dealer a look a fool because it's "normal".
View 18 RepliesI recently inherited this car from a relative, I had it and two other vehicles she owned towed to my house about a week ago. The Sonata has under 1000 miles on it and I found a stack of repair orders from the dealer where she complained that the car wouldn't move or where it had been towed after getting stuck at an intersection while driving.
What is happening is that when I get in the car, with the engine cold, it starts up and drives fine. Then with no pattern or warning, when I stop at an intersection, the transmission acts as if its in neutral. It won't go into any gear, regardless of where I put the shifter. Its got the 2.4L GDI motor. and an automatic trans.
I had to tow it 5 times now. I took it to the local dealer and they found nothing wrong, no codes, and couldn't reproduce the problem. Yet when I went to pic it up, it did it a block from the dealer, I had to push the car to the shoulder at the light. I walked to the dealer, they had a tech come out to the car and by the time he got there the problem was gone. I took it home, and when I got home, I shut it off, then tried starting it and moving it again and nothing, it wouldn't move at all, no forward, no reverse. I find that if I cycle the key, on and off, sometimes the issue will go away instantly. I also never does it cold, only after driving it a bit. It has never done anything wrong while driving at speed, only when coming to a stop and trying to move again.
When it happens, the shifter moves fine, the engine revs and there are no warning lights on the dash, it just acts like its in neutral regardless of what gear the shifter is in. It doesn't creep or pull at all, there's no movement at all when it acts up and I have to drive it to get it to do it, it can idle in the driveway all day and won't do it till I take it down the road and come to a stop and try to start moving again.
Out of frustration I bought a scan tool to see what's up but as long as the scan tool is plugged in, it doesn't act up. I've been driving it for two days without it doing it. Thinking it may be just coincidence, I unplugged the scan tool, took a ride and it did it at the first intersection, I had to shut the car off, plug in the scanner to get the car back home. I called the dealer and was told that this was impossible.
I'm starting to feel like I'm on my own with this one since the dealer seems to not be able to find the issue. I am really having a hard time believing that the dealer can't make it act up but if they're plugging a scan tool in, and driving it, maybe that's why?
As I was entering a highway onramp today, the transmission stuck and didn't shift between what I'm guessing was 3rd and 4th gear. It was revving at about 5000 RPM and stayed there.
After what felt like about 10 seconds, it got its act together and shifted and the revving stopped.
So the problem is that I have a jerky downshift 3-2 and 2-1 that can be felt by everyone in the car (car pushes forward on downshift) until the car warms up. When the car is warm I can feel it slightly at times and feel a clunk when shifting down 3-2 and 2-1. On up-shifts at times the shifts are shaky from 1-2 and 2-3. I have brought this forward to my dealership as well as another one. They all performed software updates and reset the adaptive learning. However every time I got my vehicle back after this procedure I found the A/C was on full blast. So the initial drive by the tech after the reset was learning while the A/C was on. Would this be causing the weird shifting I experience while the A/C is off. I seem to notice a better shifting when the A/C is on but this may just be me trying to reason why my transmission is behaving this way. I drove other 2015 Sonata's and they have much better shifting than my car and no hard jerks on downshifts.
Both dealers have felt the downshifts and have come back and simply said "We've done all the updates and reset and learning. This may just be a normal characteristic of the car." I told them that a brand new vehicle in this day and age shouldn't be shifting poorly when compared to an older vehicle with 300,000 km (my old Honda Civic which are prone to transmission failures). They responded casually saying you can go and get a second opinion from another dealership if you like. I am furious with their responses and just left it at that. I need to know how to get this resolved and if this is indeed something I should expect from my Sonata.
I pulled into my garage yesterday and when I tried to move the transmission into Park it would not move. I tried turning the engine off and nothing would allow the transmission selector to move. I thought I would have to push something into the transmission lock slot but the only thing I had that was close to being able to fit into the small slot was the key in the FOB but it would not fit. By pure chance I happen to push on the transmission selector to the right and it moved over and then I was able to push it forward into Park. I must have pushed the selector into the sport mode when I entered the garage.
View 5 RepliesI around 1200 miles. The car would get going when i give it gas but it feels as if their was shifting lag or slipage. Only in first gear. Doesn't happen all the tho..usually happens on rolling stops... is this normal?
View 6 RepliesAny potential issues to the transmission if always shifting the gearbox to "N" when waiting at a stop light? I noticed the car idles a lot more smoother when at N so would I'm hoping to to do this regularly if it won't hurt the transmission.
View 5 RepliesThe cruise control on my 2013 works as I expected.
However the cruise control on my 2016 Sonata does not.
When driving at highway speeds (65 to 70 mph) in cruise control and the shifter set on "D" (drive) the transmission will down shift to 4th speed whenever I go down hill.
This might be intentional as a way to keep the car from exceeding the set speed, but I have never heard of this and it would seem to place more wear an tear on the transmissions.
Do the down shifting is engineered in or if it is a service problem that I need to have addressed...
The problem is that it appears the torque converter is locking up so early even right after getting into second gear at speeds between 20km/h and 40km/h. This causes shuddering/rattling coming from under the hood. If I am not mistaken a torque converter should lock up at speeds 80km/h+. I've never seen this behavior on any car before. I'm not sure what kind of damage is being done either by all this shuddering and rattling going on with the transmission. I feel that this should be something that needs to be addressed via some software update. Is there any software update in regards to this issue?
View 5 RepliesEco Transmission. Neutral at stop lights save gas compared to Drive?
I almost feel like when I'm stopped in Drive it's actually in neutral. I'm curious if being in Neutral at really long red lights would save gas?
Have an 89 F150 WITH 5.0 AOD TRANNY has a hard shutter from 1st to 2nd and shutters hard under low rpm I am Second also shifts rough all the way through and in to od and reverse was wondering what's the possible pro lens and how to fix them....
View 2 RepliesMy 1996 F150 has developed a strange vibration and nothing i have done seems to work. once it has shifted into drive it will shutter or vibrate under a light load. if i let off throttle or give it more throttle it stops. Seems to be most noticeable from 30-55 mph. I am thinking it is torque converter locking and unlocking but not sure. if it is torque converter does the converter lock and unlock electrically? if so where is the sensor on the bellhousing? I have looked around and cannot find anything as i was going to unplug it to see that was indeed the problem. its a 4rw70 tranny.
View 14 RepliesJust picked up a 2012 GLS two weeks ago. So far I like the car. Unfortunately, I do about 40 miles a day of traffic driving. I have noticed the car seems to downshift from possibly 4th to 3rd right around 35mph. This downshift is noticeable and the engine has to rev to match the change. It is not a high rev, just a noticeable engine braking. Is this normal? I dont feel like anything is wrong just seems like the computers are not sure when to downshift.
When the car comes to a complete stop with your foot on the brake, does the car lower its rpm by 100-200pms? Seems like this is a gas saving technique. I have noticed it when While at a light and I lift my foot slighty the car feels like either the brakes are grabbing or the rpms are to low.
I travel this interstate route often that is somewhat hilly. I always use cruise control. When I got my 2007 Sonata (I4) 4 speed A/T and traveled on this road I never noticed much down shifting. Later my daughter bought a 2010 Sonata (I4) 5 speed A/T, and on this road I noticed the Xmission downshifting sometimes. When I got my 2013 (I4) 6 speed A/T, I started noticing it more often downshifting. I'm sure thats since the final drive ratio is much higher in each successive car. When my wife is driving she doesn't notice but I can tell even from the passenger seat. I can stop the downshifting by putting it in manual mode. but I see the RPMs increase somewhat. I assume thats from the TC lockup disengaging and the CC trying to maintain speed if a long hill. I suppose if the hill was long enough and steep enough that I would eventually lose speed but that doesn't occur(very much). If that is more economically that letting it just go ahead and downshift. Am I the only one annoyed by this constant up/down shifting?
View 21 RepliesI'm having in not being able to downshift manually. I can shift up with no problem. I have 116,000 miles on my Sonata that I purchased new 8 years ago. I had the (4 cylinder) tranny flushed about 18,000 miles ago. No other issues.
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