2014 Prius 3 45K maintenance

That'd be good to do, at least once, sooner than later. You're right that Toyota USA (and Toyota Canada) say nothing about transaxle fluid change. Be forewarned: dealerships have been known to quote very high prices, for what is a very simple process, on par but somewhat different than and oil/filter change. It should not cost more than $100 USD, through dealership service department. If you resort to a 3rd party mechanic, ensure they use Toyota ATF WS. Four quarts will be more than sufficient (it'll take about 3.5). Any left should be recycled, not saved for later use: according to Toyota only freshly opened bottles should be used. Relevant repair manual excerpt is attached.

Toyota USA says nothing about brake fluid change either (worth saying "change", flush has different meaning). On the other hand, Toyota Canada now recommends tri-yearly or every 48k kms (~30k miles), whichever comes first. It should not cost more than $150 USD, through dealership service department. Relevant repair manual excerpt is attached.

Maybe. Assuming they're original, that aged-out tires, by any standard. I went well over 10 years on our stock tires, but that's pushing it.

Toyota USA's recommendation for first engine coolant change is 100k miles or 10 years, whichever comes first. For the inverter coolant it's 150k miles or 15 years. For what it's worth, Toyota Canada recommends to change both at the first interval.

Worth notiing: all of the Toyota USA maintenance recommendations are laid out, in the Warranty and Maintenance Booklet, a slim volume that comes with the Owner's Manual, usually in the glove box. If Either book is missing, pdf versions are available for download from Toyota Tech Info, in the "Manuals" section.

That said, the format used by Toyota USA is event-by-event, making it nigh impossible to see frequencies, patterns. There's also a few breaks in the patterns, likely typos, very hard to spot unless you've converted it to table format. Which I've done, see attached.

Having a long-term stored car, you likely need to bend the rules some, take their advice. But don't let them snow you. That multi-point inspection for example, is mostly nonsense, there no mention of it by Toyota, and I'd wager dealership would get evasive if you ask what it entails.

One more thing: 3rd gen has a newly implemented Exhaust Gas Recirculation system (EGR) that has proven reliably prone to clog up with carbon, defeating it’s function, and (arguably) leads to blown head gaskets. Ideally it should be cleaned, every 50k miles at most (my recommendation only).

Dealership service departments are the last place to get this done: they will only replace parts, which are about a grand USD, and theres multiple hour labour charge on top of that. In LA I'd contact Hybrid Pit Stop about EGR cleaning; they’re good at it.

 

I agree with most of what @Mendel Leisk said

ATF change should be done to extend the life of the car. If money is tight you can forgo this and $150 would be a fair price. The Toyota ATF WS fluid cost has almost doubled between the changes I've done on my old 2012 Prius C and my new 2021 Prime.

Brake system flush; brake fluid can be tested to see if it still meets specs. I'm pretty sure it still does. I flush out my brake system every 5 years, but I do it and it only cost me some time and <$5 of DOT3. In your shoes, I'd have it tested before making that decision.

Air and cabin filters, I'd say NO to that. Filters are cheap on Ebay and amazon with plenty of Youtube videos on how to do it. 5-10 minute job, maybe 15 minutes for your first time.

Coolant change for your So Cal whether - definitely NOT. I'd probably wait for the 15 year inverter interval and get them both done at once. Again, if I was in your shoes.

Tires; wait for a sunny day and pull the car out of the garage. Inspect the tire's sidewalls for cracks and blistering. If none your good to go. If you leave the car out in the elements, put some tire shine on it to protect the tires from UV rays.

Toyota recommends a minimum of annual oil changes, even if you don't hit the minimum mileage interval - but your outside Toyota warranty period, so you can do whatever you want. My personnel opinion, if the oil isn't turning dark brown - I'd wait until the next mileage service interval. I have a camping/fishing rig that only sees <4000 miles in 2 years. I think the last oil change I did on it was 3 years ago. This rig has an oil depletion sensor in it and it's currently at 25% till needed change. When that rig was produced, only dino oil is specified and that's what the sensor is calibrated for. I use full synthetic oil, so I've got a reasonable amount of safety built in.

Hope this helps....

On another subject, your 12V battery. If your doing a lot of short hops in that car - 5-10 minutes errands. You may be slowly depleting your 12V battery - not enough road time to recharge. You may want to look into a smart trickle charger or RV battery charger to keep your 12V battery happy and prevent an early demise.

 

if money is an issue, i would do the engine coolant change, because it may corrode the head gasket.
and that's about it

 

The only reason I stated to push out the coolant change is because of their temperate climate in LA.

If your on the fence about it, coolant can be tested - PH and glycol levels. Using a PH test strip and a $2 glycol concentration indicator. I'm pretty sure it's well within range.

Hope this clarify things.....

 

The vehicle is over 10 years old. All fluids and filters should be changed.

 

Mendel bisco And frodoz are correct, fluid have a lifespan even if car is not operated. Mine has 240,000 miles and practice the 3 fellas’ mantras mentioned earlier.