2017 Toyota Highlander Hybrid power train problems

“Car suddenly began to slip out of gear and have difficulty shifting smoothly. After having car examined by 2 repair shops it was determined the UA80 Transmission needed replaced. Repair shop advised car was not safe to drive with this condition. Warning lights for Check Engine and Check AWD system and traction control came on at the same time as the slipping and rough shifting.”

“The transmission on my Highlander is making a whining noise. I took it to Blackstone Toyota Service for inspection, in Fresno, CA, after my own mechanic inspected it and told me that it was a transmission problem. Toyota told me that the transmission is going out and the car can quit on me at any time and is no longer safe to drive. But since it is out of warranty now they will not do anything to help me with this problem. There has been no warning lamp, message or other symptoms yet. After my service in Nov. 2023 i noticed a slight whine when i accelerated. I had a friend mechanic look at it and he said it could be just because the tires had been rotated. A couple of months ago the whine started on deceleration. I took it to Johnson Auto in Clovis, CA and they were the first ones to tell me it was in fact a transmission problem. I then called Toyota call center and was told that the vehicle needed to be inspected by one of their dealers, and then they could help me. I explained that I didn’t want to go spend more money on the inspection if Toyota would not do anything to help me, I already knew it had transmission problems. I took it to Blackstone Toyota…”

“My 2017 Highlander XLE AWD had complete transmission failure at 106,000 miles. Toyota has an extended coverage warranty for this but according to them my VIN number was not included even though it failed for the same reason as the recalled transmissions. Loud whining started around 100,000 miles on acceleration around 30mph and continued to get louder. From a dead stop it is very slow to accelerate and misses 3rd gear and jerks. There is a TSB out on this and the extended customer satisfaction extended warranty ZJC but they refuse to cover. I was also told by Toyota corporate that even if my VIN was affected they would not cover due to all maintenance not being done at a toyota dealership. I am the 4th owner and should not be penalized for this. My case number with Toyota is Toyota Brand Engagement Center Case 250416002071”

“Known issue with the transmission assembly that results in a whining noise and eventually hard shifting and transmission failure. Known issue acknowledged by Toyota across this model and date, but they seemingly are only addressing some vehicles - and not others - with said known issue.”

“Transmission intermittently allows the RPMs to double from 2,000 to 4,000 RPMs. It occasionally displays trouble codes, and exhibits a grinding, whirring noise. An Independent transmission shop confirms that it needs to be replaced. Toyota has issued a recall referred to as Customer Support Program ZJC, but their representatives claim that our vehicle does not qualify, even though the date and model of the transmission clearly Falla under their parameters.”

“The contact owns a 2017 Toyota Highlander. The contact stated that the vehicle was parked but still running in a driveway on an incline. After exiting the vehicle, there were abnormal beeping and ticking noises detected, and the vehicle began to roll down the street. The contact and daughter were pinned between the door and the vehicle. The contact's daughter sustained injuries to her chin and teeth. The driver has lumps and bruises on her leg and back pain, but medical attention was not provided. The rear wheels were on the curb and hit a trash can, and the vehicle stopped rolling. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 70,000.”