The 8L90-E 8 speed transmission is made to unlock the power of the LT1 engine. New gear ratios allow for take-off power and comfortable cruising. 8 Speed Transmission Ratios; 9 Speed Eaton Fuller Transmission. 9 Speed TransmissionRatios; 10 Speed Eaton Fuller Transmission. 10 Speed Lightning Transmission Ratios; 10 Speed Transmission Ratios; 13 Speed Eaton Fuller Transmission. 13 Speed Transmission Ratios; 15 Speed Eaton Fuller Transmission. To manage all 640 hp and 650 lb.-ft. Of torque from its 6.2-liter supercharged V8, the 2016 CTS-V sedan will rely on an advanced eight-speed automatic transmission with both paddle shifters for full manual control and Performance Algorithm Shifting for quicker cog swapping. 8 speed Eaton Fuller transmissions in every model for sale at warehouse pricing. We stock new and used transmissions with automatic and manual models available.
Toyota recently developed the automatic transmission―the 8-speed Direct Shift-8AT. With its creation, Toyota took measures to minimize energy loss while increasing transmission efficiency. Toyota processed tooth surfaces while using cutting-edge techniques to lower coefficient of friction once gears engage. Furthermore, Toyota made other efforts that helped to achieve what they call stellar “transmission efficiencies.” But what about the issues Toyota owners have with the 8-speed transmission? Sure, the innovative automatic transmission is a lighter as well as compact transmission, compared to other conventional transmissions. Sure, Toyota may state that it lowers a vehicle's fuel requirements. But the transmission has caused issues for many Toyota owners.
Toyota 8 Speed Transmission Problems- What Kind Of Problems Do Toyota Owners Have?
We combed the Internet to find numerous complaints Toyota owners had with the 8 speed transmissions. Read below and find out the issues Toyota owners experienced!
Owner Number One
“After 3 months of putting up with this ridiculous 8 speed transmission in my 2018 Highlander, it started to develop harsh up/down-shifts between 1-2 and the identity crisis between gears as described. I traded it in on the weekend for another manufacturer/model because I just couldn't deal with it any longer. Toyota dealership is aware of the problem but has no fix for it. Drove me crazy how terrible it drove for such a new vehicle. Toyota got this one very wrong and I hope they come out with a fix for everyone else that hates it as much as I did. I lost total confidence in the longevity by the way it's acting and I wanted to post it for everyone to steer them away from this model and others that have this Direct Shift UA80 series 8 speed transmission like the Camry/Sienna until they have fixed it. SHAME ON YOU TOYOTA for charging such a premium for such a terrible product!”
Owner Number Two
“My experience is similar on the 8 speed. I have 45K on it now and remains the same. The dealership says there are no error codes when I tell them, multiple times), and seems tight lipped about it. This is my 4th HIGHLANDER and love the model but this year is a disappointment because of the 8 speed and also because of the steering. That’s another let down.”
Owner Number Three
“I have [driven] Toyota [cars] for 30 years without any problems. I purchased a 2018 Camry with that ridiculous 8-speed transmission and have had continuous problems with the car jerking into gear. Toyota claims everything is fine with it. Took [the car to] two Toyota transmission experts on a test drive one morning and they both felt the transmission jerk. Later, they told me that computer shows car's transmission is fine and that perhaps I should not buy a car with a new untested system—and should have waited till the bugs were worked out. So, I am stuck basically with a lemon that scares me on the road—that Toyota is not going to fix. Sure, I can try to return it with my state's Lemon Law—but the deck is stacked way against me and I am a disabled veteran without funds or energy to put up the fight necessary to get Toyota to replace the car. After 30 years of brand loyalty I get this in return.”
Owner Number Four
“[ I can provide] An update on the horrendous Toyota 8-speed direct-shift transmission. I found out from Toyota that part of the behavior is attributable to the transmission shifting to neutral between gears. This is the source of the lag and sudden jerks when engine RPM climbs while in neutral. Add to that apparent confusion in the transmission control module as to what to do next. If the need to traverse neutral between gears is mechanical, then no control module fix will ever fix the fundamental design problem with this transmission.”
How Many Miles Does A Toyota Transmission Last?
Even for an 8 speed transmission, and under ideal circumstances, your transmission should last the life of a car. But the life of a transmission can be a cause for concern and can even fail. While transmission lifespans are determined on a case-by-case basis, your 8 speed transmission can last up to 10,000 miles, while others can last longer- up to 200,000 miles. Lots of factors will play a role into the lifespan of your transmission. But with a transmission with issues, you have to take care of the issues fast.
Does Toyota Have Transmission Problems?
In 2019 a lawsuit was investigated in which Toyota was named The proposed lawsuit included any person who purchased or leased a Toyota and had transmission issues. Problems with the transmissions included: delayed, rough and sudden shifting, delayed or harsh acceleration as well as deceleration, failure to start, jerking, bucking, loss of power suddenly, unwarranted and unexpected transmission wear; and overall transmission failure. Click here to learn more!
Toyota Updates 2017 Toyota Highlander and Sienna Transmissions
As Toyota works to address its issues with its transmissions, the auto maker took measures to make improvements on its 2017 Highlander and Sienna models. With the Highlander and Sienna, it was noted that the new eight-speed automatic transmission, was acting odd. For a few owners the transmission would make the engine rev before upshifting, particularly in both second to third gear- and the driver would only accelerate lightly. With the delay in shifting, there would be noise emitting from the engine and the driving experience was quite difficult. Toyota took note of this and addressed the issue by offering a software update as well as issuing a Technical Service Bulletin (TSB), so that Toyota owners could partake of the upgrade and repair. With Toyota designing the eight-speed automatic transmission to improve fuel economy, the transmission proved to be faulty. But the update that Toyota made to the transmission proved to be a good move, as it was noted that with the change Toyota made, the engine made less noise.
Experiences Toyota Owners Have with the 8-Speed Automatic Transmission
What do other Toyota owners with cars that our outfitted with the 8-speed automatic transmission have to say? Find out below!
Owner Number One
“The new V6 engine supplies plenty of power, but the new 8-speed automatic transmission makes it hard to discern the added oomph. Even with the Eco driving mode turned off, the 8-speed displays a tendency to upshift sooner rather than later unless you really mash down on the accelerator, such as when getting up to speed on a short freeway ramp. Then, the Highlander really hustles. Occasionally, I detected inconsistency in power delivery while accelerating. The subtle wavering and hesitation didn’t strike me as a transmission issue, so perhaps it has something to do with the engine’s new D-4S direct and port fuel injection system.”
Owner Number Two
“…yes the new 8 speed sucks any added power away. Same can be said for the new Camry. The new Camry has more power than the 17 model but it's no faster. Same can be said for the [Toyota] Highlander. The transmission likes to shift early and keep rpms under 1500. It makes it feel sluggish as the V6 doesn't have much torque that low in the rpm range. You have to push the throttle pedal halfway to the floor to get it to move quickly. That being said gas mileage is fairly good. We average 22 to 23 mpg [in] town and 28 to 30 highways depending on conditions. Overall, the 8 speed is good but not great.”
Looking to sell your Toyota with that Troublesome 8 Speed Transmission?
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8 Speed Transmission Chevrolet
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— Toyota 8-speed transmission problems have caused a lawsuit that includes Toyota Highlander and Toyota Sienna vehicles equipped with direct shift 8AT transmissions.
According to the lawsuit, the 8-speed transmission, also known as the UA80, causes harsh or delayed shifting, delayed acceleration, hesitation, jerking, unintended acceleration, lurching and excessive revving before upshifting.
The 8-speed transmission problems allegedly occur in 2017-present Highlanders and Siennas, and the plaintiffs who sued claim Toyota has actively concealed defects in the 8AT transmissions.
The lawsuit says that since their release in the 2017 model year, the Toyota Sienna and certain Toyota Highlanders have been equipped with Toyota’s UA80 transmissions. The plaintiffs claim the automaker also uses specific model numbers UA80E and UA80F for the 8-speed transmissions.
In addition, UA80 is used for 6-cylinder vehicles and UB80 is the designation used for 4-cylinder vehicles, and UA80E is the model number for transmissions in forward-wheel-drive Highlanders and Siennas. UA80F is the model number for transmissions in all-wheel-drive Highlanders and Siennas.
Florida plaintiffs Dennis and Deborah Murphy purchased a new 2018 Highlander XL and within a week the vehicle allegedly experienced 'hesitation and surging when driving at low speeds, in stop-and-go traffic and when accelerating to join a traffic flow.'
In September 2018 when the vehicle had about 2,000 miles on the odometer, the plaintiffs took the vehicle to a Toyota dealership which performed diagnostic tests and found the vehicle was performing normally.
In January 2019 with about 8,730 miles on the odometer, Mr. Murphy took the vehicle to a Toyota dealership and complained the vehicle 'demonstrated erratic throttle responses at low speeds, hesitating and exhibiting surges when lightly applying the throttle at parking lot speeds.'
The dealer allegedly couldn't find any problems with the Highlander and therefore no repairs were made.
In April 2019, Mr. Murphy returned the vehicle to the dealership and again told technicians the vehicle was 'demonstrating erratic throttle responses, stumbling and surging at low speeds.'
The dealership couldn't find any problems, but the lawsuit alleges a senior technical service adviser admitted the 8-speed transmission problems 'were common to Highlanders and other Toyota models and were well-known to Toyota and its dealers.'
Then in May 2019, Mr. Murphy returned to the dealership and complained about continued transmission problems, telling dealer technicians the vehicle needed to be repaired, or Toyota should buy back the vehicle.
The dealership performed no tests or repairs, but the plaintiff was told a Toyota representative needed to inspect the vehicle, something that occurred when the vehicle had about 11,930 miles on the odometer.
A 'Toyota District 2 Fixed Operations Manager' test drove the vehicle but made no repairs, reporting that he “found it to perform like a known good vehicle” and did “not exhibit any warrantable concern.”
“[T]oday’s vehicles . . . are driven by wire which means they do not have a throttle cable so they may exhibit very slight lag due to the ECM processing. The current eight speeds transmissions are gear to keep the engine in an optimum operating condition which may not meet the customers desired performance but in every case, a little extra pressure on the gas pedal improves responsiveness and customer satisfaction can usually be obtained.” - Toyota manager
In October 2019, the plaintiffs took their vehicle to a different Toyota dealership and again complained about 'erratic throttle responses at low speeds, stumbling, and exhibiting surges when lightly applying the throttle at low speeds.'
The Toyota technician allegedly said the 8-speed transmission problems were “caused by: internal failure on transaxle assembly” and consequently “replaced [the] transaxle assembly and associated parts per bulletin T-SB-0160-18.”
However, the plaintiffs claim the Highlander continues to hesitate and surge when driving at low speeds, in stop-and-go traffic and when accelerating to join a traffic flow.
And adding to their problems, the plaintiffs allege the vehicle is even worse now since the transmission transaxle assembly was replaced.
The class action lawsuit references technical service bulletins (TSBs) Toyota issued to dealerships concerning the 8-speed transmissions.
Toyota issued T-SB-0187-17 in February 2017, titled “High RPM Shift Point,” which said some 2017 Sienna vehicles may experience the following conditions:
- Lack of power from stop
- High RPM shift points at 2 – 3 shift
- Hesitation in lower gears
- Holds gear too long
Toyota dealerships were told to perform a software update to modify the powertrain control module logic for the Siennas.
A month later Toyota issued T-SB-0194-17, titled “Lack of Power/High RPM Shift Point/Hesitation” for the 2017 Highlander which said the vehicles may suffer from:
- Lack of power
- High RPM shift point at the 2 – 3 shift
- Hesitation in low gears
Again, dealers were told to update the powertrain control module software.
In 2018 Toyota issued TSB 0160-18 titled, “Transaxle Whine Noise, Harsh Shift, MIL ON, or Reduced Power” that applied to the 2017-2018 Toyota Highlander and Toyota Sienna.
However, this time Toyota told technicians to replace the transmissions with remanufactured transmissions.
Chrysler 8 Speed Transmission
According to the class action, the alleged 8AT transmission problems make driving dangerous and a hazard to occupants in vehicles and surrounding property when the 8-speed transmissions hesitate, jerk, lurch and suffer from acceleration issues.
The Toyota 8-speed transmission lawsuit was filed in the U.S. District Court for the Central District of California: Murphy, et al., v. Toyota Motor Sales, U.S.A., Inc., et al.
The plaintiffs are represented by Berger Montague PC, Glancy Prongay & Murray LLP, and Greenstone Law APC.
CarComplaints.com has complaints from owners of the Toyota models named in the transmission class action lawsuit.
- Toyota Highlander Complaints - 2017 / 2018 / 2019 / 2020
- Toyota Sienna Complaints - 2017 / 2018 / 2019 / 2020