2005 Prius - Which services should I get?

Looks like it had its 150,000 mile service at 143,333 miles and a few things since then. You're roughly 30,000 miles from that service. Typical 30,000 mile interval service is oil change, rotate tires, change engine air & cabin air filters, and check fluids, connections, etc. You can also drain & fill the transaxle fluid if you want, but if the car has gone 170,000 miles without that being changed, it's probably not a big deal.

 

It's a little odd that only one spark plug has been changed in recorded history. There should have been a new set at 120K miles. If you get new plugs, get the PCV valve changed, too. Of course, someone may have done that DIY, not showing up on Carfax.

Get the brake fluid flushed at the dealership or a hybrid-specific mechanic.

Pay very close attention to the engine oil level between changes, like at least every other gas fill-up. These cars are known to start consuming oil after 150K miles.

Pay attention to fan noise from the right side of the back seat--you'll see a vent there. If that fan blows often, it's an early sign of hybrid battery problems. Don't be alarmed, you're probably fine--just something to be aware of, like the oil consumption.

It was a little late for the coolant changes at 150K miles (again, may have been DIY). Those should have happened at 100K, then 50K intervals after that. It wouldn't hurt to do those again in the next year or so, since some old coolant remains during the draining.

Enjoy the car, and welcome to the forum.

 

Personally, I don't like to buy anything on eBay that I can find someplace else. I doubt it makes much of a difference what brand air filters you use as long as they're compatible with the car.

 

Especially with the engine filter, I would just visit the Toyota dealership parts department. Not worth the gamble.

I'd second changing the brake fluid. Toyota USA is still mum on the subject? Toyota Canada says tri-yearly or 48,000 km's (30K miles). Honda, fwiw, says tri-yearly regardless of mileage. For decades. I'd approach DIY brake fluid change with caution. I've done our 3rd gen, it is possible without Techstream, and outlined in the Repair Manual. And @NutzAboutBolts has a video on it. But 2nd gen may have some variations.

Transaxle fluid: yeah change it, long overdue. Use Toyota ATF WS fluid, 4 quarts or liters is more than enough. There are fill and drain bolts. Coles Notes version: remove fill bolt, remove drain bolt, install drain bolt, and with the car level, add the fluid to fill hole till it starts coming out. Install fill bolt.

 

Yes, MAF and careful throttle body cleaning would be a good idea.

 

That doesn't sound too awful. It's a bit of a shock to a DIYer, but not larcenous. Of those, the brake flush is the only thing they really should do, requiring specialized tools and/or knowledge. The transaxle service is $40+ for the oil and it's little more work than an oil change. TB and MAF cleaning is a half hour with an alcohol-soaked cloth and a $10 can of cleaner.