2017 Toyota Sienna transmission & drivetrain problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 21, 2026MITransmission & Drivetrain

   Transmission has high pitch wine that is consistent and rises with speed... Toyota expains I have 500 to 5000 miles before carrier bearing completely fails... Toyota has an extended warranty for Sienna UA80e transmission in 2017/2018... The issue is exactly as they explain in their warranty extension for 10yrs, unlimited miles... My vin number did fall on their list... BUT it is the exact issue... It should be covered, especially since they know !!

   NHTSA complaint #11765788 · source
2. Filed Jul 11, 2026CATransmission & Drivetrain

   I, as well as other owners of 2017–2018 Toyota Highlanders and 2017–2018 Siennas are experiencing serious transmission issues—including high-pitched whining, erratic shifting, clunks, hesitation, and premature failure. My 2017 Toyota Sienna has the UA80 8-speed automatic transmission at issue and started whining upon acceleration in March/April 2026 timeframe. It has always had the clunking and hesitation problem. According to Gears Magazine, the issue stems from a flawed…

   NHTSA complaint #11749682 · source
3. Filed Jun 23, 2026MOTransmission & Drivetrain

   I have a 2017 Toyota Sienna XLE with about 120k miles on it. Out of nowhere the transmission was gear hunting and surging. It eventually became impossible to get it above 30 mph. It seemed like the transmission just went haywire. No lights on the dash let me know anything was wrong. Thankfully I had just pulled off the highway. Otherwise it could've been bad. I couldn't drive it safely so I had it towed to the nearest Toyota dealership. They said that the transmission needed…

   NHTSA complaint #11746069 · source
4. Filed Jun 5, 2026NCTransmission & Drivetrain

   We experienced a high whine for a couple of months. No codes were being read by any mechanics. Then the transmission started slipping between 2nd and 3rd gears, and then we couldn’t reverse. Now it’s not switching gears at all. There is a recall for our year and type of transmission, for this issue, but our vin number is not included in that recall.

   NHTSA complaint #11742281 · source
5. Filed May 25, 2026NJTransmission & Drivetrain

   I have a 2017 Sienna AWD with a UA80 Transmission and the Check AWD System light appeared. I was able to drive it to Towne Toyota in Ledgewood, NJ and they detected the Sienna having DTC Codes P07407E, P27137F and P27567F. They they recommended a transmission replacement costing $9260.84 before tax that I can't afford right now. I am still able to drive the Sienna but Towne Toyota said that the Transmission will eventually fail. After some research, I discovered there is…

   NHTSA complaint #11739882 · source
6. Filed May 22, 2026GATransmission & Drivetrain

   The transmission went out. It wouldn't shift going 45-55 mph. We stopped at a light and put it into Park, then put it into drive but it wouldn't go. We were stuck at a light in traffic 10:30pm. We had to call 911 to get a cop to sit behind us so we wouldn't get hit. My wife, my 3 kids, and I were in the minivan. While waiting for the tow truck I saw on reddit that many 2017/2018 Toyota Sienna's had transmission problems. The vehicle is at Milton Martin toyota in Gainesville,…

   NHTSA complaint #11739526 · source
7. Filed May 18, 2026PATransmission & Drivetrain

   Transmission is making a winning sound. Toyota had issued a Customer Support Program (Program ZJC/POL19-04) for some of that year but it seems to affect more than what they have allowed

   NHTSA complaint #11738660 · source
8. Filed May 14, 2026NCTransmission & Drivetrain

   I am writing to report a safety defect regarding the 8-speed automatic transmission in my 2017 Toyota Sienna. The vehicle exhibits severe hesitation during acceleration, harsh shifting, and a high-pitched whining noise, specifically consistent with the 'whine of death' described in Toyota's Customer Support Program ZJC and related Technical Service Bulletin T-SB-0160-18.Despite these identical symptoms, my vehicle’s VIN is not included in the coverage list. This hesitation…

   NHTSA complaint #11737861 · source
9. Filed Apr 17, 2026TXTransmission & Drivetrain

   Loss of power highway speeds, jerky shifting, “sealed” transmission leaking fluid. Check engine light and service required light. I have noticed poor performance with this vehicle before and reported it to the dealer to no avail. Toyota has enacted “customer support program ZJC” but the dealership will not honor.

   NHTSA complaint #11731925 · source
10. Filed Apr 16, 2026NYTransmission & Drivetrain

    My transmission has started with a whining noise, Toyota knows about this issue with thousands of cases regarding the faulty transmission, yet only a few are being covered under a customer support bulletin ZJC. We need to hold Toyota responsible for this issue. We were just told today they won't help us at all. Yet now we are left with a van that we can't use and if we decide to fix it for 10k they are saying the transmission is backordered for months We had to pay Toyota…

    NHTSA complaint #11731611 · source
11. Filed Feb 20, 2026ILTransmission & Drivetrain

    In July of 2025 my 2017 Sienna started making a whine noise. Took it to mechanic and he stated it was likely coming from transmission but recommended we take it to Toyota dealership to confirm. So we took it to Toyota and sure enough they said the transmission was failing. They said it was due to high mileage but it only had just over 150,000 at time of incident. After doing some research on line and talking with other Sienna owners I believe our Sienna should fall under the…

    NHTSA complaint #11719297 · source
12. Filed Feb 17, 2026PATransmission & Drivetrain

    The transmission started making a whining sound. There is a Toyota customer support bulletin pol19-04 that mentions this issue however the dealer says this car is not covered

    NHTSA complaint #11718664 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology