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. Franck Dernoncourt

    Is it normal for a Toyota Prius 2007 to lose half of its battery within a ~10 minutes just standing

    Franck Dernoncourt, Feb 22, 2025
    Replies:
    3
    Views:
    1,106
    dolj
    dolj
    Feb 22, 2025
  2. Has Raf

    Bouncing fixed(ish)

    Has Raf, Feb 14, 2025
    Replies:
    4
    Views:
    1,002
    pasadena_commut
    pasadena_commut
    Feb 18, 2025
  3. Has Raf

    Water collection

    Has Raf, Feb 17, 2025
    Replies:
    10
    Views:
    1,566
    pasadena_commut
    pasadena_commut
    Feb 18, 2025
  4. robertsm

    Gen2 Used Keyfob

    robertsm, Jan 19, 2023
    Replies:
    2
    Views:
    1,537
    robertsm
    robertsm
    Feb 17, 2025
  5. Tombukt2

    mystery coolant loss heat outlet strange

    Tombukt2, Feb 11, 2025
    Replies:
    9
    Views:
    1,233
    Tombukt2
    Tombukt2
    Feb 12, 2025
  6. Longinus876

    12v Ground

    Longinus876, Feb 10, 2025
    Replies:
    2
    Views:
    858
    PriusCamper
    PriusCamper
    Feb 10, 2025
  7. ski.dive

    Is it normal?,Prius jerks/jumps when the gas engine starts,after driving in electric mode?

    ski.dive, Aug 3, 2018
    Replies:
    5
    Views:
    10,179
    bisco
    bisco
    Feb 6, 2025
  8. Thorn_

    Accidently broke off a nut thread

    Thorn_, Mar 27, 2020 ... 2
    Replies:
    30
    Views:
    9,157
    mr_guy_mann
    mr_guy_mann
    Feb 4, 2025
  9. donutgabe

    Repair or just replace engine and perhaps transaxle?

    donutgabe, Jul 2, 2016
    Replies:
    9
    Views:
    3,335
    Jss4837
    Jss4837
    Feb 3, 2025
  10. landspeed

    Landspeed's HV battery + ECU teardown, analysis, experiment, upgrade thread

    landspeed, Feb 20, 2019 ... 2 3
    Replies:
    59
    Views:
    30,511
    Rami Boul
    Rami Boul
    Feb 3, 2025
  11. tkc100

    LED Load Resistor?

    tkc100, Feb 2, 2025
    Replies:
    2
    Views:
    955
    dolj
    dolj
    Feb 3, 2025
  12. David Hoult

    Diagrams of rear suspension. Need to replace all bushings

    David Hoult, Jan 31, 2025
    Replies:
    6
    Views:
    1,667
    Tombukt2
    Tombukt2
    Feb 2, 2025
  13. ColoradoCrow

    Up late. Need help ASAP. Battery cell closest toECU. Neg or POS?

    ColoradoCrow, Jan 29, 2025
    Replies:
    1
    Views:
    840
    Hayslayer
    Hayslayer
    Jan 30, 2025
  14. uk_diag

    Help Needed: Customer Dispute After Key Programming for 2005 Prius

    uk_diag, Jan 18, 2025
    Replies:
    15
    Views:
    1,822
    cyberpriusII
    cyberpriusII
    Jan 29, 2025
  15. StillKedar

    Prius gen 2 Death triangle randomly appears

    StillKedar, Jan 22, 2025
    Replies:
    7
    Views:
    1,689
    Brian1954
    Brian1954
    Jan 27, 2025
  16. S Keith

    How to test HV battery state of health on your Gen 2 (answer)

    S Keith, Mar 14, 2016 ... 3 4 5
    Replies:
    99
    Views:
    67,027
    ToyotaCoyotta
    ToyotaCoyotta
    Jan 27, 2025
  17. Bill J

    Parasitic 12 volt Battery After LCD Repair

    Bill J, Jan 26, 2025
    Replies:
    1
    Views:
    679
    bisco
    bisco
    Jan 26, 2025
  18. retirednongeek

    DrPrius Test Results

    retirednongeek, Jan 17, 2025
    Replies:
    4
    Views:
    1,361
    mr_guy_mann
    mr_guy_mann
    Jan 25, 2025
  19. pasadena_commut

    How exactly does a blown head gasket clean pistons?

    pasadena_commut, Jan 25, 2025
    Replies:
    10
    Views:
    1,479
    mr_guy_mann
    mr_guy_mann
    Jan 25, 2025
  20. pasadena_commut

    Refill ICE coolant loop through drain valve under thermos?

    pasadena_commut, Jan 18, 2025
    Replies:
    6
    Views:
    1,093
    Tombukt2
    Tombukt2
    Jan 21, 2025
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