2019 Toyota Sienna: whining or grinding noise

6 of the 47 complaints about the 2019 Toyota Sienna describe whining or grinding noise.

owner complaints: 6
of this car's complaints: 13%
recalls: 0

Is there a fix? 3 service bulletins cover this area of the car. See below

Whining or grinding noise by model year

2020
1
2019
6
2018
10
2017
19
2013
2
2012
5
2011
1
2009
1
2006
1
2000
5

What owners say

Filed Oct 28, 2026 · Engine · KY

The transmission is going bad at 85,000 miles. It’s making a whining sound when you accelerate.

Filed Apr 16, 2026 · Transmission · MA

2019 Sienna XLE with 77,000 miles has a UA80 Transmission is whining at the final gear per Imperial Toyota Milford MA service center. They want to replace the transmission for 9,000 USD and Toyota Corporate refuses assistance. It appear to be a common defect which could lead to transmission lockup if the gear fails.

Filed Mar 14, 2026 · NJ

Started hearing a whining noise upon acceleration. Took car to Toyota for a diagnostic check. Discovered transmission is failing. Recommended repair is a full transmission replacement, quoted $10,000. After bringing to a local mechanic for a second opinion, he claims this is a widespread issue with Toyota Siennas in similar years. After some research, Toyota quietly claims there was an issue in the manufacturing of these transmissions however won’t take accountability

Filed Dec 7, 2025 · Transmission · WI

Transmission has failed and been replaced. This is part of issues from 2017 to 2020 tranny failures, loud whining and needing to be replaced. Tranny failure is very dangerous to the occupants. Toyota has failed to warranty these.

Filed Jun 29, 2025 · Transmission · IL

sever transmission whine started at 138k miles over a year ago.Toyota will not fix issues under recalled ua80 transmission. Said my vin doesn’t fall within recall.

Filed Sep 10, 2024 · Transmission · IL

Transmission UA80e is a poorly designed transmission. It almost caused an accident due to the transmission lunching forward on its own. Also has a whine coming from the transaxle. There is a customer service program for the 2017-2018 models about this issue. But I have a 2019 and not eligible for the program. Would like for Toyota to make this right. Less than 5 year old van.