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2013 Elantra GLS jerky transmission

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57K views 37 replies 26 participants last post by  mg0698  
#1 ·
Hi guys!

My very first post! :D

I just bought a brand new 2013 Elantra! I love the car, but over the past week or so I have started to feel the car's transmission (auto) jerk when it shifts from 3rd to 4th gear. I feel the car hesitate somewhat when going from 3rd and then jerk into 4th gear if that makes any sense. The car has less than 1000 miles and it never did it when I first bought it. The transmission was always smooth until recently. Also, when coasting down the road I feel the car jerk forward when I give it some gas which also feels very strange to me!? :confused: If anyone has any input that would be great!

Thanks guys!:)
 
#5 ·
I think I have the solution for you, it worked for me. Do a soft reset of the ECU as stated below in one of the threads. (Credits: Arnab)
However, I did something slightly different in the 2nd step, I pressed and released the accelerator twice very slowly, and on the 3rd press - I held it for more than 5 secs and then released it.
Try what works for you! It has made my gear shifts ALMOST like CVT transmission..:D:D

Note ALL the electrical must be shut off, including climate control. Don't operate anything electrical, radio-windows-dome light-etc, during the procedure.

1) Turn the Key to the "on" position (the position right before you start your engine)

2) Press and hold your gas pedal down for more than 5 seconds

3) With gas pedal still down, turn Key to "off" position (dont remove the key) and then release the gas pedal.

4) Wait at least 2 minutes for the car systems to reset.

This "soft reset" rests the tranny and ECU to original "agressive" factory defaults - since "adaptive" program was designed for economy, and not performance.
 
#6 ·
Tried the soft reset earlier today but it did not seem to solve the issue. I may try it again later today. I am bringing it into the dealer this next Monday to have them look at it.

This is really frustrating since the car is practically new (818 total miles on the car). I just want to know if anyone else has had a similar issue and what was done to fix the issue. Thanks!:)
 
#9 ·
Are you sure it's not the 2-3 upshift that's getting botched? The 2-3 shift is the hardest to execute smoothly due to the layout of the geartrain. The dealer will plug it into the portable GDS and drive it and check solenoid timing and if one of the solenoids is out of spec, they will replace it. You suggest that this occurs all the time rather than being intermittent, and it suggests a solenoid issue. My money is on the "OD" solenoid - the OD clutch applies on the 3-4 shift and then stays applied all the way up through 6th.
 
#10 ·
Are you sure it's not the 2-3 upshift that's getting botched? The 2-3 shift is the hardest to execute smoothly due to the layout of the geartrain. The dealer will plug it into the portable GDS and drive it and check solenoid timing and if one of the solenoids is out of spec, they will replace it. You suggest that this occurs all the time rather than being intermittent, and it suggests a solenoid issue. My money is on the "OD" solenoid - the OD clutch applies on the 3-4 shift and then stays applied all the way up through 6th.
I probably should have been more specific in my original post. Transmission is jerky only when car is warmed up. When it is cold it shifts smooth;y. The 3-4 hard shift does not happen all the time, but it is frequent enough for myself to notice.

After doing some research it looks like it may be related to the tempature sensor on the transmission. Taking it into the dealer soon and hopefully they figure it out. ^_^
 
#12 ·
A quick update for anyone out there...

The dealer said that they couldn't find anything wrong with the car. They said it performed "flawless" in the road test, which I find hard to believe!

I found that if I drive the car with an a light foot that it shifts like butter. It seems to shift fine at RPMs around 2000 but anything more it jerks going from 3rd to 4th gear. No other jerking in any other gears, just from 3rd to 4th at RPMs greater than 2000. For me, this does not seem normal.

Can anyone else chime in on how their 2013 Elantra shifts?

Thanks guys :)
 
#13 · (Edited)
I'll try to test this out on the way to work this morning, OHP permitting. ;) I'm getting too old for moving violations tickets. LOL

"Uh, officer, I was testing out this theory for a friend, see, and well, I, uh..."
 
#14 ·
My Elantra shifts just fine when left in "D" and at any RPM. I try to keep shifts around 2250-3000 rpm, any sooner then that feels like a bus could pass me. Now if I switch over to manual mode it does tend to have slightly firmer shifts but still pretty smooth.
 
#16 ·
Hmmm I would say that my car feels kinda jerky as well.. Especially in stop in go crazy busy highway traffic.. If I just drive with my foot gradually pressing the gas in normal driving conditions it's fine.. But at times it can be a little jerky.. I think this is normal for the car to be honest.
 
#20 ·
i just picked up my GLS on the weekend... noticed similar things but chalked it up to being used to my crappy car..

but after a couple days.... it seems the jerky feeling is due to being a 6 speed set up for economy... it changes gears alot and doesnt always get it right in every situation... letting off the gas feels like its downshifting and gets touchy when you get back on the gas for example..

or maybe im wrong and we both have issues.. lol
 
#21 · (Edited)
Please don't take this the wrong way but I fail to understand why someone would come to this forum and ask an opinion on a major issue with their car when it is still under warranty. Who cares what the opinions are at this point, don't waster time seeking out an opinion, just bring it to the dealer and say repair it. Now, out of warranty sure, look for possible causes but under warranty you are wasting your time seeking answers, bring it in.

Now that you have it back and still don't care for the shifting take the test drive with the service rep in the car and point out what you feel is wrong. If he then says it is fine just assure that it is noted on the repair slip for your records
 
#25 · (Edited)
:( Unfortunately, I am going thru those symptoms with my 2013 Elantra Coupe.
Wasn't extremely noticeable until recently. Shifting going into 3 is delayed sometimes a struggle. And a jerk or lurch feeling if you have to let up off the gas and then go back into it to pick up speed. If the car is in ECO mode it is even worse. My car is warmed up and been on the road for a good 20-30mins.
Going into the shop tomorrow, but I know they will not be able to create symptoms.


My gas mileage has plummeted 35-37 when first got the car. Now 27-28.
 
#26 ·
What time frame are you considering for the mpg freefall? Considering your location, it is 95% due to temperature and weather conditions.

The 2-3 shift is going to be the bumpiest due to the gear train layout. Cold fluid makes it a little bumpier and it gets really bumpy of the TFT (transaxle fluid temperature) sensor is out of spec. If it only happens on occasion, chalk it up to the computer trying to figure out precise shift timing without knowing the right fluid temperature. It's not something I'd want to do for a living!
 
#27 ·
2013 elantra transmission issues

hey folks,
I just read the info on here regarding the '13 Elantra shifting problems. My car started to shift hard after I had only a couple of hundred miles on it. So as time went on, it got worse, and i finally took it back to the dealer and stated my complaint. They took the car right in and wiped out the memory on the computer for the transmission, re-downloaded it, and i took it for a drive. The car does not shift "hard" anymore, but still feels like it "slips" from D2 through D4. So after I got the car, I still noticed road noise emanating from the firewall area. It seems that the car is now letting transmission noise and road noise come in through SOMEWHERE on the car. It is almost like a body plug fell out of its seat, and now I can here the road noise much more. I know that isn't a "big deal" to some, but to not have it, then now it's there, yep, something isn't quite right. the service mgr. told me there was a tech bulletin sent by the factory regarding the shifting points of the transmission. Anyone else having issues like this??
 
#28 ·
I failed to mention that when the service mgr, showed me the readouts from the computer, there were NO codes!! That was a bit perplexing to me, but at least the guy was honest enough to show me. I was told to drive it a bit,and see how it performs. But I also have lost miles per gallon long before I took the car to the dealer, what gives??
 
#29 ·
My wife's '13 Elantra has been experiencing the same problems -- jerkiness at low speeds, and even sometimes at moderate speeds (45 - 50 mph). It started about a month ago, but was only intermittent. However, on the way home from work yesterday, she said it was really bad and she didn't feel safe driving it -- an then the check engine light came on.

So we dropped it off at overnight at the Hyundai dealership. I called this morning to see what's up, and the service manager said that the transmission temperature module failed (they were able to pull which codes were being thrown), and that was what was causing the trouble. Said they would have to drop the the transmission, put in a new solenoid/module, and put everything back up together and fill it up with new transmission fluid.

Should be ready this afternoon.
 
#31 ·
My girlfriend has a '13 and its doing the same exact things as i've been reading.

When its cold and we just leave somewhere pulling out onto the first street it Jerks 1/2 shift. almost like the convert slips which seems crazy.

Then when you're in 5th gear going to 6 (car shifts at 44mph) and you accelerate past that speed then take your foot off the gas the downshift 6th/5th jerks the car as well.

Everything else is fine, and the 1/2 shift goes away when the car is warm as well.
 
#33 ·
My girlfriend has a '13 and its doing the same exact things as i've been reading.

When its cold and we just leave somewhere pulling out onto the first street it Jerks 1/2 shift. almost like the convert slips which seems crazy.
...
Everything else is fine, and the 1/2 shift goes away when the car is warm as well.
First shift sequence is unmodulated and the timing is fully advanced to warm the engine, so what you're feeling is the Grand-Canyon gap between 1st and 2nd ratios. If the computer didn't fiddle with ATF line pressure and ignition timing once the fluid started warming up, all 6 speed automatics in all cars would shift like that all the time. It's not a Hyundai thing, it's a Lepelletier Gearset Automatic Transmission thing. They all (every Lepelletier 6AT car in the solar system) do it to varying degrees.

Then when you're in 5th gear going to 6 (car shifts at 44mph) and you accelerate past that speed then take your foot off the gas the downshift 6th/5th jerks the car as well.
That's fuel cut - the car shutting down the injectors while coasting. If you coast far enough, you will feel the 5-4 thump at about 30mph and then it'll switch the injectors back on at about 26-28mph (when coasting from highway speeds). These downshifts must be unmodulated ("jerky") because you need enough torque from the drive wheels feeding back through the transmission gearset, friction clutches, and torque converter clutch to keep the engine spinning while it's "off" - meaning not burning any fuel. If you don't like fuel cut, when you feel the drag of the dead engine, bump the shift lever to N, count three Mississippi's and shift back to D.
 
#32 ·
I have a 2013 also. My transmission/accelerator pedal was super sensitive when I first got the car. When trying to pace traffic, even the slightest amount of gas would cause my head to jerk forward.

I took it to the dealership and they were able to flash the ECU with a better throttle mapping. It's a bit better, now, but I still think there is room for improvement.
 
#34 ·
My daughters 2013 elantra was doing the same thing 15,000 miles.
They tried to reset values sent it home and next morning started doing the jerky even worse.
towed backed to dealer, they contacted Hyundai and they said to put in a new tranny,
hoping this one works, time will tell if she doesn't get rid of it. very disappointed, even though under warranty.