2023 Platinum Hybrid Tranmission Shudder?

Hello all - I've had my new Tundra for about two months now. A month or so ago I noticed what I assumed was drive line shudder. I'm sitting at roughly 2500 miles.

It's a shake/vibration that lasts maybe 1 second each time it happens. I can make it happen pretty reliably when driving at 30-40 mph and then accelerating gradually to say 60-70 mph. Right when you toe into the throttle, before the turbos spool there's a shudder and then everything happens like normal. Part of me thinks it's torque converter shudder, but it doesn't happen during every downshift. Only when the engine is at 1200-1500 RPM and then shifting down to 2000 or so for acceleration.

Is this "normal" behavior? Is this just a tuning issue from Toyota that happens with the handoff from electric assist to the turbos? Do note this happens when the engine is running, it's not the engine startup when it kicks from all electric to gasoline power. That transition is pretty smooth.

Things I know it isn't:
- Wheels/Tires out of balance
- Loose wheels
- Road conditions
- Transmission temp (happens when cold and when warmed up)

 

I will second some of those symptoms, it happens occasionally when I'm in comfort mode when I accelerate I can feel it through the pedal something just isn't right with the shifting, but when you go from a start to cruising speed (normal acceleration)it's smooth in comfort mode.
I only noticed this on the hwy or 55~70 mph.

 

Same! If I'm taking off from a stop, it's silky smooth.

 

Can you shift into the manual mode and see if it's in a specific gear? I have a vibration in mine in 8th gear.

 

Negative I've tried that route and nothing bc I can change form gear 2 gear when and how long I want to stay in each,to me it seems like when in drive mode on the hyw it will sense the throttle increase and it will shift but to me its just not sure how far down to shift and it just feels weird,you can feel it on the armrest center console.
Now this happens only on the highway and to me when the throttle adjustments are slight it seems more prone to this vs in the city I will hit it a little harder and I'm assuming it must sense the command and skip a few more gears to accommodate for the increase, vs a slower down shift for fuel eco or for a smoother transistion.
Don't get me wrong it doesn't feel angry or anything but ya can definitely feel it.

 

Same for me, I don't think it's specific to one gear. The more I drive it, I think it's just the computer trying to decide what gear to hop into like you've mentioned vs. something more nefarious. I've heard there is a Transmission update the dealer can apply for some models. When I go in for service next I'll ask about it.

 

Let me/us know how ya make out,eager to hear what they say for your concerns and for a software update.

 

Updating for anyone following along - Sadly the vibration has become a little more frequent. Now near constant anywhere above 70 MPH on and off throttle. I've reached out to my dealer and plan to drop it off tomorrow. After scouring the internet some more, I'm beginning to thing it's a bad or out of balance drive shaft. Seems like on throttle vibrations at low speeds and constant vibration at high speeds is a pretty tell-tale sign from what I've read. I also crawled under the truck and was shocked by the number of weights on the drive shaft. Easily 10+ all over it from end to end. Wonder if they had problems balancing it during manufacturing, kept throwing weights at it and eventually said "good enough"

I'll update things once I hear more from the dealer.

 

Hello again everyone - Here's an update after my truck spent a few days with the dealer.

• Test drove my truck with a service rep and he also felt the vibration on power toe in and at interstate speeds. He didn't think it was a driveshaft due to the nature of the vibration, but said it could be the differential.
  
• Service rep and multiple technicians drove my truck over the next couple days to diagnose. All agreed something felt "weird" but couldn't nail it down
• Dealer test drove two similar Tundra Hybrids they had on their lot. One a brand new 2023 and a second that was a used 2023 with 13,000 miles on it. The same shudder/vibration was present in both at throttle toe-in but the interstate vibration was less present in their trucks
  
• Dealer contacted Toyota for next steps. Toyota recommended resetting the Trans controller and continuing from there as my truck was already running the latest and greatest software.
  
• After reset, there is still some vibration on throttle toe in, but I think it's less obvious. There is still a bit of a shimmy at interstate speeds, but I think that is better too. There's still a noticeable gear change bump between 2nd and 3rd when taking off from a stop, but the exact same sensation was felt in both dealer trucks when they took me for a test drive in them.

So after 4 days at the dealer, my truck is better but still feels a little funky from time to time. The dealer did submit a report to Toyota with their findings so perhaps in a future update they'll be able to smooth things out. I know having a good dealer is luck of the draw, but I was really impressed by how all of this was handled. I expected to ride with the service advisor when I went to drop it off and for him to tell me to kick rocks, but my experience was quite the opposite. They really did try everything they could short of throwing parts at it, which I know is not a realistic thing to expect (especially when the parts in question are thousands of dollars). It seems like this issue is a software and tuning issue on the new 10 speeds that Toyota will need to continue to tweak at.

 

Same here 2023 Toyota tundra capstone hybrid
Same shudder
Same thing
Planning on taking it to the dealer

 

Since posting this back in September, I'm now around 6500 miles and the shudder is very nearly gone. I don't know what changed, maybe the weather getting super cold here in the Midwest but I've only had a shake once or twice over the last month or so.

 

Thanks for the updates

 

I had an F150 work truck that shook like a bitch at highway speed. They never could figure out what it was so since I don't pay fuel, I loaded the box with weight......shake gone

 

I am doing a deep fuel system cleaning on my 23 tundra to see if it is a fuel

 

Sooo I have a 2024 platinum with 1750 miles on it. I started to notice the shutter on acceleration around 45mph. Same as above about 1 second and gone. I will contact the dealer and see what the fix is up here in New England. I will post when I get more info.

 

Check the drive shaft it might be unbalanced
Check the rear end for overfilled fluid and shavings
Have them reset the tcu and re-enter parameters located on your transmission
Check for any software updates
Everything is computer controlled
This truck has 56 computer modules

 

Did you ever go to the dealer ??

 

Yes they fixed it
Defective driveshaft - balance weights fell off
Defective rear end - too much fluid, tons of shavings
Wheels unbalanced
Reprogram and reset parameters in TCU
Replaced defective parts
Now the shake is barely noticeable - I am ok with that - it’s a new system with hybrid twin turbo engine and needs more tweaking on TCU end of it and ECM as well as other controllers
I suspect more updates are coming since these trucks have 56 control modules and EVERYTHING is controlled by those modules

 

So I took the Truck to the dealership and they had it for three days. Picked it up today and was told that Toyota Corporate told them to take another similar vehicle for a test drive, they did and found the same thing. So it was decided that it’s normal. I said no it’s not and took the manager for a ride and he felt it too. He is getting the district rep to come down and I will take him for a drive. More to come.

 

Get rid of this piece of shit
Get 24 model

 

So Toyota just called and they have the Shudder issue on my 2024 Platinum Hybrid is either the torque converter or the transmission or both. They sent a transmission fluid sample to Toyota and are waiting for direction. Will update when I get more.

 

Are you any of you who are experiencing this issue at higher altitudes?

Also - there was a Tech Tip that came out recently talking about the proper way to install the torque converter as it seems they might be having some issues after short block replacements...

 

No I’m damn near sea level.

 

Did you ever take it in? I too have the same symptom here in NE

 

Same here 24 1794 3200 miles

I get slop in the lower gears

 

When you say "slop" what exactly do you mean? Shuddering?

 

The transmission jerks back and fourth with space in between the forward motion kick and rear motion kick.

Not shutter I have that as well - however today I was in sport all the time and transmission kick was mostly absent at slow down to 20 start back up - off the gas again..

I’m 95% in eco mode and that is when both issues are more noticeable.
my 2 cents

 

I hardly have any in sport too but eco forget about it.

If your shudder between 30-45? I'm leaning towards a torque converter issue but I am afraid that the dealership\toyota will fight that tooth and nail. I am hopeful that there is a thread out there, maybe this will turn into it, where someone has a similar issue and it is in fact a torque converter issue and that Toyota fixed it

 

Thanks for the feedback and agree with your thoughts..