Recently went over 90,000 miles. What kind of things should I start looking out for?

Discussion in 'Gen 3 Prius Main Forum' started by Freeze Time, Jan 23, 2025 at 12:45 AM.

  1. Freeze Time

    Freeze Time Member

    Joined:
    May 15, 2018
    131
    43
    0
    Location:
    Huntington Beach
    Vehicle:
    2015 Prius
    Model:
    III
    2015 Prius here. I went past 90,000 miles a couple of weeks ago. One thing I have noticed over the last couple of months is it seems like my key fob battery is glitching. Sometimes it will recognize the fob and other times it doesn't. Once it starts to never recognize it, I replace the battery but I will still get the same thing every couple of days and then I can go weeks between any problems but the battery lasts only 5 months or so. I do have another key fob I can start using if you think that might be the problem or are the batteries just weak or is there something wrong with the car picking up the signal?

    What kind of maintenance will be due soon? The only things I've had done in the 6 years or so I've owned it is oil changes and some new tires. What should I start looking out for or expecting to go wrong? I have googled Prius maintenance but it's mostly just general guidelines. I need the pros here to give it to me straight.
     
  2. MAX2

    MAX2 Member

    Joined:
    Aug 12, 2024
    427
    120
    18
    Location:
    Third planet from the Sun
    Vehicle:
    2007 Prius
    Model:
    N/A
    90,000 is the total mileage of the car since its release, or is it your achievement in six years?
    In addition to oil changes, there are quite a few maintenance procedures that increase the life of the car.
    This topic describes Gen3 in detail.
    2010 Prius Maintenance Schedule (US) | PriusChat
     
    Mendel Leisk likes this.
  3. Freeze Time

    Freeze Time Member

    Joined:
    May 15, 2018
    131
    43
    0
    Location:
    Huntington Beach
    Vehicle:
    2015 Prius
    Model:
    III
    Total. Would a 2010 be exactly the same as a 2015? I know they are both gen 3 but 2015 is surely better than a 2010 and doesn't need as much correct?
     
  4. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    25,254
    16,481
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    There were some cosmetic changes in 2012, a new set of audio and nav choices, and leather upholstery replaced with Softex. By 2015 I think there may also have been revised pistons/rings, possibly less likely to develop oil burning. I would still stick to 5k changes and check the dipstick regularly if it were mine.
     
  5. Mendel Leisk

    Mendel Leisk Witness Leader

    Joined:
    Oct 17, 2010
    57,426
    39,631
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    There's what's due according to Toyota, which is "fairly" complete. There's what's due according to the dealership, which varies, but can border on larceny.

    The are things due according to Toyota USA, but ignored by dealerships, likley because it's hard work with relatively low profit margin, coupled with highish labor/parts costs, which scares off the owners. So the two parties "enable" each other.An example of that would be an in-depth brake inspection, which Toyota recomends tri-yearly or 30k miles, whichever comes first.

    Then there's things that neither Toyota nor the dealerships want to talk about, deal with. Examples:

    1. Transaxle fluid change (god knows why, it's as simple as dirt)

    2. Brake fluid change (Gen 3 has a non-Techstream procedure that's easily doable by DIY'rs on their toes. Dealerships will do it if you insist, but tend to give you "brush-off" quotes. Again, not sure why. FWIW, Toyota Canada recommends tri-yearly or 30k miles.)

    3. EGR system cleaning. This is the hot potato. With your miles I'd look into it, soon, and repeat at least every 50k miles. I have this unsubstantiated notion that not doing this is the prime reason head gaskets are blowing, around 150k miles.

    More info on all of the above in my signature. If you're on a phone turn it landscape to see signatures.