2017 maintenance 45K mile

You can download the (U.S.) maintenance schedule from this website: 2017 Toyota Prius Owners Manual and Warranty - Toyota Owners

By gear oil. do you mean the "transmission" (what Toyota calls an eCVT)? If so, Toyota considers their eCVT fluid "lifetime" and therefore there is no official recommendation. but if you plan to keep your Prius a long time, many people do change the fluid once around 30 to 45k and then possibly every 60,000 miles after that.

 

Use Toyota ATF WS fluid for the transaxle. Four quarts or litres should suffice. Owners Manual has an emphatic caution against using anything else.

It’s a simple drain and fill: there’s a drain bolt and a fill bolt. Proper level when filling is easily achieved: fill with the car level (likely raised too), till it starts to overflow. That’s optimum level. A funnel and hose arrangement from above is simple.

Both bolts I believe are socket head cap screw, require 10 mm male hex “socket”. Torque for 4th gen is roughly 32 ft/lb IIRC.

Recycle any left over fluid; Toyota recommends to only use fluid from freshly opened bottles.

If I get a chance I can post relevant Repair Manual excerpt later.

 

It's in the SERVICE Manual.

 

rotate tires

check/clean/replace air and cabin filters

check and lube brakes

tighten all bolts

check and top up fluids as necessary

clean battery cooling fan intake grille

 

Did you check the "warranty and maintenance guide", the lowest one on the page that I gave you a link to? To me it pretty much spells it out.