How long does the HV battery, transmission/E-motor, and fuel pump typically last?

Well reality is is you're well within luck country already so keep on thinking I guess so what if you get stranded who cares I mean aren't you set up for that AAA so on and so forth anything I mean you have no plan if you get stranded stranded means a lot of things to lots of people whether you're down at the Piggly wiggly or out in the middle of absolute nowhere because you like traveling around and living in your car so definitions are critical in a lot of these antics so you're at 280K or almost 300k and now you're worried about things what might fail sounds good. You're just riding around contemplating what might fail and a presupposed planned obsolescence vehicle that's pretty cool I would say keep doing that and see what you make I made 396 on the 2010 solar roof car and the only reason I believe that happened is it because it was driven like it was a taxi Uber eats Amazon flex all that nonsense had it been just sitting in the driveway going to work and coming home as fast as possible to sit at the house It would have failed at half that mileage I I believe We had a persona that failed it almost half that mileage doing the duty mentioned above going to work coming directly back home you know that type of thing It seems these cars have a chance if they are kept in the wind but most people can't do that because they have a job where their car sits out in the sun in the parking lot all day that's not in the wind. But that's great so at this point you should be thinking about getting out of that vehicle when the trouble starts not really how well you've done so far and you're happy you'll quickly not be happy when whatever breaks and it's that ZZ type engine that you don't fix at that point so then what And so at this $280,000 miles your door panels and everything in the cars and really nice condition and working well I find that interesting for sure so then you've never put your arms on the armrest on the doors or you know you're a little 90 lb person or something there's a reason I'm a little hundred pound type person My door panels and all that and anything I drive should never be blowing out caving in anything I got two of them that way so there's always that I don't hardly ever use the armrest in my doors or anything they should look brand new they certainly do not and they're pretty much non-replaceable and can't get any. Personally and most of my vehicles I only care about the part where I sit in the interior if the outside is scratched up got some dings in it that's for y'all to look at I could care less I know when I look through the window I see unsplit seats nice perforated leather interior and all of it works right what you have to look at on the outside of my car that's your problem or their problem the people doing the looking.

 

Transmission and its electric motors last essentially forever. I mean there have been some failures but they're pretty darn rare.

The HV battery is generally good for 12+ years in that model.

If the 2nd generation model is any example, then the HV battery life is probably 12-15 years though we have seen at least a few of the older models get to 20 years on the factory battery. It's typically longer in cooler climates.

Don't forget the brake booster. Those have become a real achilles heel for those 3rd generation cars.

 

^+1. Plus, the inverter can go out and leave you stranded without warning. The good thing is that Toyota has a 20-year warranty. If you have the required trouble codes, it will be fixed for free.

 

The reason I got a Gen 5 was because of the amazing reliability of my Gen 3. I never spent a dime on repairs for the whole 12 years I owned it.

I certainly hope that Toyota doesn't abandon the strategy of reliability that took them to become the world's number one automaker.
I think they understand that people will pay for quality and will develop a strong loyalty to the brand.

People say that Nissan is just as good, but they don't take as many awards for reliability as Toyota.

Another example of this is the John Deere Model D tractor. They were virtually indestructible, and they sold millions, and many are still running today. John Deere didn't make much money on Model D parts, but it made them the top farm machinery manufacturer today.

 

I think you timed that well.

For those 3rd generation cars, 12 years is about the right term for extracting the maximum value with the minimum in downtime and repair expense.

 

But 12 years to some is well nothing I mean that's just broke in good or it should be I'm looking to go 18 or something and hopefully I don't have to have a newer one in the driveway for the just in cases and all that sort of stuff generation 5 no I can't consider anything after 2010 until I see it with oh say $180,000 on it now because Toyotas these newer units will run about 150 to 170 and then you're paying almost as much for the vehicle and parts and labor for the car and you don't want to do that with something built so thin and cheap after 2010 I mean you got to be kidding some of these models at 230,000 you'll be sitting on tubular metal seat frames they'll be nothing left to the upholstery and things like that

 

The transmission is pretty solid and rarely has anyone on Prius Chat wrote about
issues with them.
As for the hybrid battery, you could get the Prolong system and run it through the
reconditioning cycles. It kept mine going for almost 3 years. I have the Sodium battery now.
The fuel pump is a low problem issue also.

 

150-200,000 miles

 

IMHO, you can back-off the ATF change and spark plugs, do them both every 100K, to make things easier. Flush the brake system every 100K too; hopefully you can avoid the brake system failure.
If that's a daily driver, the traction battery should be good - but you can get individual module failures. Dr Prius can usually point you in the right direction for modules about to fail and overall pack longevity.
As far as the fuel pump, they historically will outlast the car - but if your pumping dirty fuel into your tank. The filter sock may get plugged-up. Unfortunately it's a one piece assembly, even if it wasn't - with that kind of mileage on it, I'd be inclined to replace the entire unit. One and done....

Hope this helps...

 

@koukilights, fuel pump failure is 99% caused by empty tank and continue trying to start the car. The other factor is bad fuel. I do not understand why you replace head gasket just because you want it. It is a big job and not needed. The EGR cleaning and fluid changes are fine. The battery lifespan depends on where the car is driven and parked. In hot climate, it last around 150k miles but much longer if you kept it in the garage and run AC in summer. A lot of city drive makes it shorter life too, probably below 250k miles but heat is the biggest factor.

 

I'm certain SOMEONE's Prius has had a part failed. A fuel pump is extremely rear.
Your Mom's car is probably one of the >.1%. NO reason to replace it unless it fails.
It's expensive.
Replacing the brake fluid at 2-3 year intervals is wise. The fluid absorbs the moisture in the air.
There are test strips, but not really sure how reliable they are.

You can play wok a mole with the battery blocks. But it's hard to get new blocks, then you have to
balance the pack. And if one failed, it is very likely the others will be close behind. And since it is
a lot of work just to remove battery, let alone taking it apart, then back together, and reinstall, it's
BEST to replace them all at once.
From what many have written on here, it's a constant issue of blocks failing one right after the other.
So how many times do you want to R&R it?????

 

Pen Brake fluid tester, $10 is accurate enough in 0.5% error bar. If it is <2% moisture content, we do not need to replace it. The strip test is Cu test that is not relevant to hybrid that is relatively mild to brake system, not as hot as regular car. The brake fluid gets darker as it is exposed to heat and the anticorrosion additives depleted when it gets dark too. That's when we need the strip test, which is also accurate. Changing it every 5-7 years makes sense even if the moisture is still < 2%. Just to give a good fresh fluid. Dot 3, Dot 4, or Dot 5.1 are compatible but not DOT5.

 

I rarely see fuel pump failures on modern cars. The few I've seen had well over 150K miles on them and the intake filter was plugged, so technically not a pump failure. Some could be attributed to a 'sweet tank'; someone pouring sugar into the fuel tank (abuse) - Pissed anyone off lately?? That's kinda difficult to do nowadays since most has locked doors.