Gen 2 Prius Technical Discussion

Come discuss the technical ins and outs of the 2nd Generation 2004-2009 Toyota Prius and the Hybrid Synergy Drive System.

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  1. Duncwarw

    Urgent Help Needed!

    Duncwarw, Jul 8, 2025 ... 2
    Replies:
    34
    Views:
    4,365
    mr_guy_mann
    mr_guy_mann
    Sep 22, 2025
  2. donzoh1

    Upstream O2 Sensor removal

    donzoh1, Sep 21, 2025
    Replies:
    2
    Views:
    860
    mr_guy_mann
    mr_guy_mann
    Sep 22, 2025
  3. viciousthinker

    2005 Pri, small hose from ICE reservoir cap is pointing down and disconnected, dumps coolant!

    viciousthinker, Sep 20, 2025
    Replies:
    4
    Views:
    856
    Mendel Leisk
    Mendel Leisk
    Sep 20, 2025
  4. Freeport

    Gen 4 modules for Gen 2 pack

    Freeport, Jan 25, 2023
    Replies:
    19
    Views:
    3,738
    PriusCamper
    PriusCamper
    Sep 19, 2025
  5. donzoh1

    2008 has howling noise rear end

    donzoh1, Sep 17, 2025
    Replies:
    1
    Views:
    841
    pasadena_commut
    pasadena_commut
    Sep 18, 2025
  6. Eman123

    disable key fob due to stolen registration

    Eman123, Sep 10, 2025
    Replies:
    6
    Views:
    1,177
    Eman123
    Eman123
    Sep 16, 2025
  7. pasadena_commut

    "Mushy" transition from OFF to ACC

    pasadena_commut, Sep 16, 2025
    Replies:
    0
    Views:
    789
    pasadena_commut
    pasadena_commut
    Sep 16, 2025
  8. pasadena_commut

    Adding water to 12V battery

    pasadena_commut, Aug 5, 2025
    Replies:
    5
    Views:
    1,243
    pasadena_commut
    pasadena_commut
    Sep 13, 2025
  9. Tom600x

    Problem dash is completely dead and Ignition switch no lights

    Tom600x, Nov 15, 2020 ... 2
    Replies:
    24
    Views:
    23,922
    gdanner
    gdanner
    Sep 12, 2025
  10. Clarence Pascual

    Key Fob Doesn't Start Car When in Slot

    Clarence Pascual, Sep 10, 2025
    Replies:
    10
    Views:
    1,658
    Prius_Gnome
    Prius_Gnome
    Sep 11, 2025
  11. J Conner

    How to know if control arm needs replacement?

    J Conner, Jan 26, 2019 ... 2
    Replies:
    20
    Views:
    12,000
    TBM
    TBM
    Sep 10, 2025
  12. Straha

    Red Triangle of Death and Engine not starting, but no OBDII error code.

    Straha, Sep 9, 2025
    Replies:
    1
    Views:
    869
    dolj
    dolj
    Sep 10, 2025
  13. monoshock

    Anybody on here repair the instrument cluster ?

    monoshock, Aug 30, 2022
    Replies:
    12
    Views:
    5,693
    Tombukt2
    Tombukt2
    Sep 8, 2025
  14. PartlyEVDave

    In a pickle with a Prius!

    PartlyEVDave, Aug 28, 2025
    Replies:
    13
    Views:
    1,580
    PartlyEVDave
    PartlyEVDave
    Sep 8, 2025
  15. caliwaves

    OEM hybrid battery vs newpriusbatteries?

    caliwaves, Jan 17, 2021 ... 2
    Replies:
    24
    Views:
    15,633
    PriusCamper
    PriusCamper
    Sep 6, 2025
  16. Vysse

    Recommended Mechanic Northwest Arkansas Area

    Vysse, Jul 30, 2018
    Replies:
    5
    Views:
    3,371
    2Fats
    2Fats
    Sep 3, 2025
  17. MonkButter

    Worth repairs? (Bad Cat and Coolant System)

    MonkButter, Aug 16, 2025
    Replies:
    15
    Views:
    2,031
    Brian1954
    Brian1954
    Aug 31, 2025
  18. pasadena_commut

    12V voltage recovery curve used by battery testers? Probably not.

    pasadena_commut, Aug 17, 2025
    Replies:
    4
    Views:
    892
    pasadena_commut
    pasadena_commut
    Aug 28, 2025
  19. gdanner

    Why do hybrid battery control module connectors get corroded?

    gdanner, Jul 21, 2025 ... 2 3 4
    Replies:
    64
    Views:
    8,318
    gdanner
    gdanner
    Aug 27, 2025
  20. WSCC

    Electrical SKS Woes

    WSCC, Aug 19, 2025
    Replies:
    4
    Views:
    1,023
    WSCC
    WSCC
    Aug 26, 2025
Showing threads 61 to 80 of 6,843

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