Warranty Almost Expired, A Few Questions

I believe you're at least partially confusing the traction battery with the 12v battery. The 12v battery almost universally lasts about 5-7 years, not really dependent on mileage. The traction battery will last until it dies, the number I see thrown around for the life of the battery/car is 150-180k miles. It could die sooner or last a lot longer. I wouldn't worry about it until your mileage drops for no reason or the battery SOC fluctuates wildly.

 

Ok to have you car inspected by the dealer for recalls and any problems covered under warranty before expiration.

If you still have the original 12 Volt small battery you may need to replace soon. They last 5 years but can go longer. Best to replace no fun getting stuck. Costs about $200 plus labor to install

The big battery traction can go 10 plus years and over 150,000 miles however some fail earlier if they were driven hard. Most last a long time. Rebuilt one costs $1,800

Bookmark for future reference

Hybrid High Voltage Battery Specialists



You may want to replaced transaxle fluid. Dealer charges $100. Good precaution to give the transmission long life.

100,000 mile is major tune up new spark plugs. It is 120,000 miles on the newer cars so check your maintenance schedule

This is a link on the dcussion. The cost is about $700

100,000 mile service experience | PriusChat



Pcv valve may need to be changed not that expensive when you can.

 

Good to know you are on top of that. I would bring it in if it were my car. Call the service advisor and discuss

 

I've not heard of that. The dealer will only look for trouble codes. They don't know about NiMH chemistry or battery life prospects. They don't have a test that says anything about the HV battery, just fault codes. Same for everything else in the car not under recall.

Considering that once you have changed all the fluids (with the inverter pump recall they were supposed to put in new fluid), you should be fine for a long time. Brake fluid can last a long time in the Prius, due to its minimal stress from regen braking. You can get test strips to tell how it is doing, and judge from that info if it needs replacement.

 

Hobbit did this test at 100K miles

100K maint - 1

and found the brake fluid was indeed OK.

 

What can the dealer look at that you cannot? Very little actually. Get a flashlight and go over the car in detail looking all hoses, wiring, and anywhere a leak can show up. You can even take off the wheels to look at the brakes and bearings closely.

The thing to have the dealer check for is if all recall actions (if any) have been performed. For them to fix something under warranty, it has to be broke or you need to point out what is wrong. That requires you to find it first.

 

Think of how many dealers would have found the walnut. You are already better than some auto technicians I have encountered.