Dealership "recommendations" :)

I think you should get the brake booster fixed free and then go back to a trusted independent hybrid mechanic. The dealer should give you new brake fluid as part of that repair.

First, are there problems you notice with the ac? If not, scratch that off. You are due for spark plugs and you want genuine Toyota/Denso. There are counterfeit which will fail in 50k miles while your originals and genuine replacements easily make 150k miles.

The fuel induction service is unnecessary and nearly worthless on these cars. Fuel injectors stay clean due to standard gas additives.

Carbon is a big problem especially if the car burns oil but even without excessive oil consumption. It is necessary to remove the intake and egr components to do a good job cleaning those parts. You need an independent with hybrid experience as Toyota won't clean these parts; the dealer will only replace.

Replacing the transaxle fluids and coolants is a good idea but both are easy for an independent sometime in the next 10k-20k miles.

Overall you could save 1/3 or more with an independent.

 

looks like mostly a reasonable list, since 120k is the first major service. but you may fall into the heavy use category, which shortens the service intervals. do you have a maintenance schedule?

some prices are a bit high. i would shop around since any competent mech can do them.

ask what the tune up includes. you need plugs, and throttle body cleaning is a good idea.

not sure what the 3 way induction service is, wallet flush?

tranny fluid shouldn't be more than $150.

you will need inverter coolant at some point, check the schedule.

is the 12v original? how are the air and cabin filters?

all the best!

 

I cleaned my throttle body a month ago for the first time after getting the same recommendation from the dealership. Took maybe 30 minutes after watching the videos and saved me $280. It's pretty easy, and not that daunting. I don't know much about hybrids or cars other than the true basic of what's what and what it does. Watched a couple of Youtube's. Changing the spark plugs/coils (for me) is a little more work only since you have to remove the wiper blade assembly.

 

The air conditioning "refresh" may be a spray foam cleaning of the ac evaporator in the dash. It is intended to make the air smell better. The evaporator cleaner is injected into the condensate water drain under the car. Then it drains out. The can of foam cleaner is about $35 if needed. The cabin filter is far more important.

The hybrid fan is not the carbon issue. It is simply an air cooling fan that blows over the battery to keep it cool. It does not have a filter so the blower "can" get dirty. Usually you are ok if the battery overheat warning does not come up. An independent hybrid mechanic would know about this; normal mechanics may not.

Clean versus replace is to resolve carbon buildup in the engine egr, intake manifold and head. The egr cooler and the egr valves are a problem in these cars where the dealer replaces rather than cleans. Your dealer was offering a chemical cleaning of the intake which does not clean or replace the carbon in the egr system or in the valves. To do it right requires removal and cleaning or replacement of the egr cooler, egr valve and intake manifold. Plus an attempt to clean the carbon off the valves while the intake is off. This is the clean vs replace scenario where dealers replace. Primarily because it is a four to eight hour job that can be done in half the time by replacing high profit parts. As a result diy or independents are more likely to tackle the remove and clean option.

Of all the issues, this is the biggest. 5k mile oil changes are essential on this car. Head gasket failures and excessive oil burning are the typical results of 10k-15k oil changes. The engine is deeply flawed in this regard. Spend extra in this area by changing the oil like your wallet depends on it. Head gaskets are $2,000-$3,500 if the engine is not ruined first. Change the oil every 5k or get rid of the car.

AC Evap Coil Cleaner
Toyota A/C Heater Box Foam Evaporator Cleaner/Ventilation Refresher 00289-ARCKT | eBay

Battery fan video

Egr system valve and cooler

 

One caveat regarding the battery fan video from @NutzAboutBolts : you don't need to pull off the rear seat bottom (as they do in the video). There's one bolt you need to remove, below the battery fan intake grill. You can push a gap between the seat bottom and back, reach a ratchet extension (with 12 mm socket IIRC) through, back out the bolt. Reach a hand through and hold the bolt; don't let it drop.