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. pasadena_commut

    Slightly peculiar 12V battery observations

    pasadena_commut, Aug 3, 2025
    Replies:
    14
    Views:
    1,299
    pasadena_commut
    pasadena_commut
    Aug 15, 2025
  2. Tracyheal915

    smart key fob

    Tracyheal915, Aug 13, 2025
    Replies:
    9
    Views:
    965
    Tombukt2
    Tombukt2
    Aug 14, 2025
  3. iamerror

    How to use engine mode? Hybrid wont charge battery keeps going to 1 bar occasionally wont start.

    iamerror, Aug 12, 2025
    Replies:
    9
    Views:
    1,015
    BiomedO1
    BiomedO1
    Aug 14, 2025
  4. Robert John

    Stupid Question of the Month: How can I safely rotate a front tire?

    Robert John, Jul 19, 2025 ... 2
    Replies:
    26
    Views:
    2,752
    Robert John
    Robert John
    Aug 10, 2025
  5. Robert John

    Rear Brake Drum 'Sticking'

    Robert John, Jul 19, 2025
    Replies:
    4
    Views:
    802
    Robert John
    Robert John
    Aug 10, 2025
  6. T1 Terry

    Want to use a Gen 2 transaxle in my VW Kombi upgrade

    T1 Terry, Aug 4, 2025
    Replies:
    15
    Views:
    1,358
    T1 Terry
    T1 Terry
    Aug 7, 2025
  7. Britprius

    Re-hydrating the battery modules.

    Britprius, May 6, 2015 ... 23 24 25
    Replies:
    480
    Views:
    233,783
    T1 Terry
    T1 Terry
    Aug 6, 2025
  8. Dale I

    fuel tank EVAP lines

    Dale I, Jul 22, 2025 ... 2
    Replies:
    23
    Views:
    2,182
    Dale I
    Dale I
    Aug 4, 2025
  9. Bitsandbytes

    What is this wire for? P0A4C and P0A4D codes and mice chewing

    Bitsandbytes, Jul 29, 2023
    Replies:
    7
    Views:
    6,067
    James Analytic
    James Analytic
    Jul 31, 2025
  10. Alvie johnson

    Need help on my 2009 toyota prius

    Alvie johnson, Jul 28, 2025
    Replies:
    8
    Views:
    1,021
    Alvie johnson
    Alvie johnson
    Jul 31, 2025
  11. speedway dave

    Why is my hybrid battery draining?

    speedway dave, Jul 8, 2025
    Replies:
    12
    Views:
    1,335
    speedway dave
    speedway dave
    Jul 29, 2025
  12. squidster

    2007 Prius - Key Fob not unlocking

    squidster, Jul 24, 2025
    Replies:
    0
    Views:
    479
    squidster
    squidster
    Jul 24, 2025
  13. John Capel

    HID to Halogen/LED Conversion

    John Capel, Jul 18, 2025
    Replies:
    1
    Views:
    890
    ebikeman
    ebikeman
    Jul 23, 2025
  14. rkoska

    Emergency Shift lock override

    rkoska, Feb 5, 2007 ... 2
    Replies:
    34
    Views:
    63,831
    ChapmanF
    ChapmanF
    Jul 21, 2025
  15. prius_newb66

    which direction are the drum brake ratchets intended to turn?

    prius_newb66, Feb 18, 2024 ... 2
    Replies:
    24
    Views:
    3,899
    Tombukt2
    Tombukt2
    Jul 21, 2025
  16. Banksy

    How can I test the hybrid battery fan to see if it's working properly?

    Banksy, Apr 5, 2020
    Replies:
    14
    Views:
    17,708
    pasadena_commut
    pasadena_commut
    Jul 20, 2025
  17. Ed480

    2008 Prius water pump

    Ed480, Jul 18, 2025
    Replies:
    2
    Views:
    661
    Tombukt2
    Tombukt2
    Jul 18, 2025
  18. Tyler Pryjda

    Reviewing & Preparing for ABS Replacement

    Tyler Pryjda, Jun 18, 2025
    Replies:
    2
    Views:
    1,139
    Tyler Pryjda
    Tyler Pryjda
    Jul 18, 2025
  19. repnatl

    How to convert from hid to halogen

    repnatl, Aug 11, 2017 ... 3 4 5
    Replies:
    88
    Views:
    71,408
    Tombukt2
    Tombukt2
    Jul 15, 2025
  20. Genevos

    Why Prius ECU can't reduce battery temperature while Dr Prius app can?

    Genevos, Dec 7, 2022 ... 2
    Replies:
    39
    Views:
    10,419
    amitt
    amitt
    Jul 14, 2025
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