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Discussion Starter #1
so my TLX has 5.5k km's on it..
when approaching a right hand corner, i slow down almost to a yield then go to boot it, i lose all acceleration for a solid 5 seconds or so during the turn..
i can feel it cut out and everything.. car still has electrical power..
i've had it happen 3 times now, all at random..
at first i thought it was something to do with Auto Engine Idle so i turned it off and never really noticed it..
well it happened again yesterday and Auto Engine Idle hasn't been coming on because of the cold temps so i'm not sure whats going on..
can't bring it to the shop because i can't duplicate it..

anyone happen to run into this situation before?
 

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I've had this happen twice over a two month span. As it was very random, I really didn't get a chance to trouble shoot. I can say that it was at the same corner both times and it was within 5 minutes of leaving work. It is also only happening since I got my transmission replaced although I don't want to link the two together just yet.
 

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Now that you mentioned it, I think I've had it happen last week.. in a right turn as well oddly... never noticed it before or after so I didn't think much of it. Interesting though.
 

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Discussion Starter #7 (Edited)
i'm not sure which gear it was shfting but i have a 2016.. i thought the tranny's were sorted for '16-'17's?
i've only got 5.5k km's on it too so it's not even been driving a lot
 

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Yes, I have a certain restaurant that I go to once a week or so and the restaurant is right off the highway. I stop at a light and then turn right fast to get back on the highway. It seems to happen almost every time and there is this hesitation which requires me to push extra hard on the accelerator to get past this 'dead spot'. I haven't tried experimenting with it yet, but would want to try:


Try IDS mode in something other than NORMAL
Turn VSA mode OFF
Turn CMBS mode OFF


I would just want to eliminate these items that we have control over since I normally drive in NORMAL mode and always have VSA and CMBS mode on.
 

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The situation with mine isn't starting from a dead stop. I'll be driving at around 60kms/hr and slow to go around a right turn/corner. The two times that it happened, once I get around the corner and press on the accelerator there's nothing for a few seconds and then it seems to sort itself out. The first time it happened I honestly thought the car stalled.

Any other time the car works fine. its just that same right turn that I take everyday and it's only happened twice.
 

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It's the transmission hunting for gears.

You're slowing down, braking for a red light or a turn. Then when you're at a certain low speed, in a certain gear, with the engine in a certain rev range, you shift over to the gas pedal and step on it. Nothing happens. Few seconds later, transmission figures out what it needs to do and you're finally on your way. Too often do I get caught out like this. I've had a few times where I almost got rear ended.
 

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Discussion Starter #12
The situation with mine isn't starting from a dead stop. I'll be driving at around 60kms/hr and slow to go around a right turn/corner. The two times that it happened, once I get around the corner and press on the accelerator there's nothing for a few seconds and then it seems to sort itself out. The first time it happened I honestly thought the car stalled.

Any other time the car works fine. its just that same right turn that I take everyday and it's only happened twice.
this is my exact issue too.. i've had it happen at 2 certain corners so far
 

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Discussion Starter #13
It's the transmission hunting for gears.

You're slowing down, braking for a red light or a turn. Then when you're at a certain low speed, in a certain gear, with the engine in a certain rev range, you shift over to the gas pedal and step on it. Nothing happens. Few seconds later, transmission figures out what it needs to do and you're finally on your way. Too often do I get caught out like this. I've had a few times where I almost got rear ended.
ya it's scary.. wonder if there's a fix or is it just a crappy tranny we have?
i'm in a 2016 and thought all tranny stuff should have been fixed?

anyone think a throttle booster would fix the issue?
seen a guy on instagram just installed one on his 2016 and he said everything is flawless now, what yall think?
 

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It's the transmission hunting for gears

Well if we could reproduce it then we can certainly test it using the paddle shifters. Could be a software issue related to the throttle / pedal sensor / EFI system etc and unrelated to the transmission. If you have an area that has an issue, try to hit the same turn in sport mode... shifting at "normal" shift points/RPM. I would try it but have not had the issue more than once or twice since owning the car.

As far as the booster... I hate to add mods like that... there is a flip side for every mod... if there was truly an issue that could be resolved don't you think it would have been implemented by the manufacturer? Not saying that you are not experiencing something as described but before I went with a mod I would have a the dealer take a peak.
 

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same problem here

usually occurs after a quick right turn, but sometimes even a left turn!!!

downright dangerous when it happens because you get a massively delayed response from the throttle

could it be that stupid 4-5 dog gear trying to sync?
 

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Oddly enough it's only happened turning right and at the same intersection. I make many right turns every day. It's very strange.


Sent from my iPhone using Tapatalk
 

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Oddly enough it's only happened turning right and at the same intersection. I make many right turns every day. It's very strange.


Sent from my iPhone using Tapatalk
Make note of your speed while making these turns... It doesn't happen at every right turn for me, but it does happen more often turning right than left...
 

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Have you guys tried going into Sport+ mode and use the paddle shifters to see if you experience the same lag? If you don't - then it's very likely the transmission control unit trying to figure out what gear to be in - which may be amplified by the dog clutch shifts:
These shifts happen from gear 4-5 and from gear 7-8. When the transmission engages/disengages the 2 dog clutches, the TCM/ECU will reduce engine torque substantially to avoid damaging them. That, coupled with the relatively large amount of pedal travel required to trigger a shift, can make the car feel like it has almost lost power or stalled.

Since you did mention that this seems to happen when in a turn, it could also be the traction control attempting to limit power. Try turning it off and see if you notice the same problem.
 

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Discussion Starter #20
Have you guys tried going into Sport+ mode and use the paddle shifters to see if you experience the same lag? If you don't - then it's very likely the transmission control unit trying to figure out what gear to be in - which may be amplified by the dog clutch shifts:
These shifts happen from gear 4-5 and from gear 7-8. When the transmission engages/disengages the 2 dog clutches, the TCM/ECU will reduce engine torque substantially to avoid damaging them. That, coupled with the relatively large amount of pedal travel required to trigger a shift, can make the car feel like it has almost lost power or stalled.

Since you did mention that this seems to happen when in a turn, it could also be the traction control attempting to limit power. Try turning it off and see if you notice the same problem.
i had it happen again.. always on right turns.. i'm starting to think your right about traction control attempting to limit power..
it definitely feels like something is limiting the power during the turn.. makes no sense you would do that on an AWD vehicle tho..
they are built for corners i thought..
going to try doing a week of sport mode with traction off.. only issue i have is it's always raining in my city and most of my drives are short drives.. so i usually forget to switch to sport and the rain could become annoying if the vehicle slides easy..
i've never actually drove it with traction off yet
 
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