Reliability: Have a gen3, thinking of a 2016 gen4

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by dave gilmour, Aug 25, 2020.

  1. dave gilmour

    dave gilmour Junior Member

    Joined:
    Sep 20, 2014
    15
    2
    0
    Location:
    london
    Vehicle:
    2010 Prius
    Model:
    N/A
    Hey everyone, I have a 2010 gen3 with 101k miles and I've loved how dependable it's been and it still drives like new. However, am thinking of upgrading to a gen4 but I wondered if there is a general opinion on relative reliability versus the gen3 and is there a model year to avoid? Cheers!

    Posted via the PriusChat mobile app.
     
  2. markrivers

    markrivers Junior Member

    Joined:
    Sep 3, 2011
    88
    21
    0
    Location:
    Beverly Hills
    Vehicle:
    2020 Prius Prime
    Model:
    Limited
    it's a Toyota which is Japanese for reliability. LOL!
    i don't expect it to be less reliable than the gen 3

    i only have my 2020 for 2 weeks. i can feel the difference with the new TNGA platform that Toyota use. ( started 2016 if i'm not mistaken)
    the build quality is better than the Gen 3. The ride is better especially on corners andit;s more comfortable.
     
    dave gilmour, krmcg and jerrymildred like this.
  3. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    10,231
    12,547
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
  4. CooCooCaChoo

    CooCooCaChoo Active Member

    Joined:
    Jan 7, 2015
    667
    368
    0
    Location:
    Cow-lee-fornia
    Vehicle:
    2017 Prius
    Model:
    Two Eco
    ^^^ except for the recalls involving the inverter

    Overall, quite reliable.
     
    dave gilmour likes this.
  5. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    10,231
    12,547
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    There apparently was one for the earliest of the 2016s for the inverter. Plus a few less critical recalls. (although an unexpected airbag deployment might well be considered critical to anyone who might be in its way. :eek:)

    In fact, according to this thread (All Known Gen 4 Prius Recalls/Technical Service Bulletins (TSBs) | PriusChat) , all gen 4 recalls were on 2016 MY except one limited to Gulf States Distributorship spare tires on 2017s.

    This could prove to be the most reliable generation yet. And it should be that way with all the things Toyota must have learned over the years.
     
    dave gilmour likes this.
  6. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    95,257
    43,192
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    after 5 years, i would venture to guess more reliable. if they can beat the egr/brake actuator/inverter problems, your way ahead of the game.

    your 2010 may be on borrowed head gasket time, or maybe not.
     
    dave gilmour likes this.
  7. Tande

    Tande Active Member

    Joined:
    Jan 29, 2006
    484
    288
    0
    Location:
    Mich.
    Vehicle:
    2017 Prius
    Model:
    II
    FWIW.......me thinks I'd go for the 2017-1/2 .......some "Safety" upgrades worth having.......ymmv
     
  8. dave gilmour

    dave gilmour Junior Member

    Joined:
    Sep 20, 2014
    15
    2
    0
    Location:
    london
    Vehicle:
    2010 Prius
    Model:
    N/A
    Any ideas what increases the risks of a head gasket going bad? I try not to drive over 80mph. Engine runs really smoothly....

    Posted via the PriusChat mobile app.
     
  9. Prodigyplace

    Prodigyplace Senior Member

    Joined:
    Nov 1, 2016
    11,698
    11,286
    0
    Location:
    Central Virginia
    Vehicle:
    2017 Prius
    Model:
    Two
    Wrong. I know the 2017 had some.

    Early 2017 got caught in the parking brake clip recall, I believe. There was definitely a wiring harness recall where they stripped back the covering looking for damaged wires and then wrapped with a more abrasion resistant covering. A covering for the harness could wear through, damaging the wires.

    if you have the VIN is is always advisable to enter on the Toyota Owners site to determine what recalls apply and whether they have been performed.
     
    jerrymildred and Tyfly like this.
  10. Tyfly

    Tyfly Member

    Joined:
    Dec 1, 2016
    65
    93
    1
    Location:
    Texas
    Vehicle:
    2017 Prius
    Model:
    Two
    Yep! My 2017 was purchased in April 2017 and was affected by the wiring harness recall.
     
  11. Prodigyplace

    Prodigyplace Senior Member

    Joined:
    Nov 1, 2016
    11,698
    11,286
    0
    Location:
    Central Virginia
    Vehicle:
    2017 Prius
    Model:
    Two
    In my case i drive 150 miles to my preferred dealer. No way was I going to trust my local dealer. They even documented the tire pressure totally wrong on the first free service

    I had that recall done and then Toyota modified it to include both parts of the harness. I called Toyota Corporate to see if my local dealer could finish the recall. They said I needed to drive back to the other dealer. They then called their service manager. He called me and argued that although the recal had been updated,
    I was wrong. I was driving in my car at the time and didn't want to argue. He checked with his master hybrid mechanic and realized I was correct. He called me back to apologize. I made the 300 mile round trip again to get the recall completed.

    In my opinion that is a sign of a good, caring dealer with an adult manager who admits when he is wrong. I also saved money by using them & their Gen 1 Prius owning salesman over dealing locally.
     
    jerrymildred and Tyfly like this.
  12. Prodigyplace

    Prodigyplace Senior Member

    Joined:
    Nov 1, 2016
    11,698
    11,286
    0
    Location:
    Central Virginia
    Vehicle:
    2017 Prius
    Model:
    Two
    In what country are you located? There is a London Ontario Canada in addition to the one in the U.K.

    London (disambiguation) - Wikipedia
     
  13. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    10,231
    12,547
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    This is good advice. I always do that. Neither of our 17's show any open recalls and the service records don't show any being completed. It was other research that didn't turn up any recalls other than what I mentioned. I saw it on the internet so it had to be true. :LOL: Anyway, apologies for the misinformation. :oops:
     
    Prodigyplace likes this.
  14. royrose

    royrose Senior Member

    Joined:
    Mar 21, 2009
    1,308
    872
    4
    Location:
    Foot of Pikes Peak
    Vehicle:
    2010 Prius
    Model:
    IV
    Like you, I have a 2010 Prius with 100,000 miles that has been totally reliable and runs like new.

    Many gen 3 owners have reported that the EGR cooler becomes completely clogged which may lead to the engine running hotter than it should and therefore increasing the risk of head gasket failure. I have followed this issue closely. EGR cooler clogging does indeed happen frequently but nearly all head gasket failures that have been reported on PriusChat have occurred after 150,000 miles. At your rate of use, you could easily go another 5 years without doing extra maintenance. If you have the time, tools and space, you can clean the EGR system yourself at minimal expense but it would be costly to pay someone else to do it.

    That said, it sounds like you would like to move on to a newer vehicle as would I eventually. I am waiting to find out whether Toyota will release a 5th gen Prius for the 2022 model year as they normally do with their usual 6 year cycle. There is uncertainty about this because Covid could delay release and because Toyota is releasing hybrid versions of just about everything they make which leaves the future of Prius in doubt. I would think that we will know the future of Prius by the Spring of next year.
     
    #14 royrose, Aug 29, 2020
    Last edited: Aug 29, 2020
  15. Mendel Leisk

    Mendel Leisk Sand Pounder

    Joined:
    Oct 17, 2010
    45,964
    32,824
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    If you opt to stay with the 2010:

    1. Clean the EGR and intake thoroughly, now. Pay attention to the EGR passageways in the intake, in particular the small diameter passages, one per intake port.

    2. Consider stemming the swill the PCV system regularly dumps into the intake, with an effective oil catch can(s).

    I think the woes don't happen overnight; it's a slow but inexorable process, brought on by neglect of the above.
     
    #15 Mendel Leisk, Aug 29, 2020
    Last edited: Aug 29, 2020
  16. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    95,257
    43,192
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    we don't know the cause. some people have problems and some don't. we have discussed oil change frequency, driving style and etc., but so far, no conclusions.
     
  17. dave gilmour

    dave gilmour Junior Member

    Joined:
    Sep 20, 2014
    15
    2
    0
    Location:
    london
    Vehicle:
    2010 Prius
    Model:
    N/A
    Prodigyplace likes this.
Loading...