2017 Toyota RAV4 - Do I need this?

is there a need to have transfer case service & rear diff fluid service at 35,000 under normal driving conditions in Nj (no leaks or other problems)

If specified in your owners manual—yes.
It may void your powertrain warranty if you don’t.
If not required per your manual, it is still good preventative maintenance.


Those fluids should be changed every 15,000 miles if the majority of your driving involves towing, using a car top carrier or heavy loads. It is not required for normal operating conditions but may be recommended by your dealer. See your maintenance guide for details.

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