2015 Toyota Sienna AWD 3.5 V6 - U660F - Transmission Flush Service

[@ScubaCat3]

Very helpful, thanks! Going to do this in the spring when it warms up for sure.

[@paulnguyen791]

Good job brother ❤❤❤❤❤

[@topcat5992]

2015 Sienna LE- 127k miles, never changed the transmission fluid. Do you recommend a trans. flush service at the dealership?

[@mosinw6697]

I just bought a 2014 highlander same 3.5-u660f 110000 miles . No carfax history of fluids transmission/diff/transfer case . I was going to drain and fill with same amount WS atf any other suggestions ? Thanks so much

[@moosemobileautorepair]

You can do that and usually for a drain a fill you will get roughly 2 liters that will come out. It is best to check the level after you are done if possible, otherwise if you can't just drain and fill whatever comes out.

[@CabdinuurSanka]

How often do I need to service or replace the transmission full? Thanks

[@moosemobileautorepair]

Usually every 96 k Kilometers/6 years (60 k Miles) but I recommend to service a bit sooner than that if you are keeping the vehicle for a long time.