every mile
The dealer will tell never ,but i change mine every 30000 miles,it better to be safe than sorry.
The manufacturer recommends that the timing belt be changed at 90,000 miles. == ==
The transmission fluid on a Toyota Sienna should be changed every 100,000 miles. This helps to prolong the life of the transmission and improve performance.
I have found that the filter should be changed around 90K in normal use and 60K in severe conditions. Toyota Tech.
80 weight transmission fluid is recommended for the Toyota forklift. The transmission fluid is actually hydraulic fluid. The transmission fluid should be changed every 250 hours.
5W30
The tire pressure in a 2005 Toyota Highlander should be about 35 pounds. This model has a low pressure indicator alarm.
To purchase a used Toyota Highlander, one should visit the local Toyota garage. Alternatively, try the local car listings in the newspaper or magazines such as Auto Trader.
75,000
Toyota uses dextron t-4 which is real special. the manual says never and so does my dealer. so i suggest every 200k miles. unless you tow, then 100k.
Factory recommendation is 90,000 miles.
5w 30. In the manual too
You need to flush the power steering fluid on a 2003 Toyota Highlander every two to three years. You should check the fluid levels weekly.