Where is “Scheduled Maintenance Guide" for prius prime?

You will find the link to the maintenance guide and all other documentation for 2017 PRIME on this page. It is at the bottom of the page.
The actual pdf link is this: https://www.toyota.com/t3Portal/document/omms-s/T-MMS-17PriusPrime/pdf/2017_Toyota_Prius%20Prime_WMG_lr.pdf

The scheduled maintenance is listed after the warranty explanations in the last half of the booklet.

 

Toyota Tech Info also has the same pdf's. Cover page:

 

Is it the Canadian version? Does it show the brake fluid change at 3yr maintenance? The OP is from CA, USA, so the US link should work for him unless he really wants to change the brake fluid. lol

 

No, the US book is what I pasted in. And Toyota Tech Info is the US publications, in the "manuals" Tab.

Canadian Owner's get "Owner's Manual Supplement". It encompasses all Toyota models. It used to have a horrible, all encompassing schedule, nothing but text, tons of exceptions and provisos, near impossible to decipher, pretty much forced me to start with the spreadsheet translations.

Then in maybe 2014, while still encompassing all models, they went to a table format, kms/months across the top, and descriptions down the left side. Around that time they introduced the brake fluid change spec. That was the acme of clarity, for Toyota Canada.

Then a few years back, maybe 2016 (with advent of 4th gen Prius), they no longer have a schedule of any description in the booklet, you have to go online, plug in your miles/months/model.

Here's the maintenance portion of the 2014 booklet, the pinnacle, lol.

 

do not know if it's too late, but i read toyota extended free maintenance by 4 months