1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Dashboard lights not working.

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Ali921, Jun 20, 2010.

  1. seilerts

    seilerts Battery Curmudgeon

    Joined:
    Mar 7, 2010
    3,326
    1,512
    38
    Location:
    Santa Fe, NM
    Vehicle:
    2005 Prius
    If I remember correctly, the dimmer switch can be slid out of its hole in the dash. There is a blank next to it, that you can pop off so as to stick your finger through to ease it out. Another part that might help is that the silver vent can be popped out (page 2 of Hobbit's guide linked in post #11), with moderate difficulty, and reveal perhaps enough of the dash innards to expose the problem.
     
    1 person likes this.
  2. LBH

    LBH Junior Member

    Joined:
    May 5, 2011
    30
    0
    0
    Location:
    San Jose, CA
    Vehicle:
    2004 Prius
    Model:
    N/A
    Thanks Seilerts, I will try it out !!
     
  3. lesdit

    lesdit New Member

    Joined:
    Apr 15, 2011
    32
    13
    0
    Location:
    United States
    Vehicle:
    2006 Prius
    Model:
    N/A
    Mine had the connector slipped off behind the dimmer control. I pop'ed it out from the front, and fished the wire to the hole. Reconnected and pushed it pack in the dash. Took 10 min max.
     
  4. LBH

    LBH Junior Member

    Joined:
    May 5, 2011
    30
    0
    0
    Location:
    San Jose, CA
    Vehicle:
    2004 Prius
    Model:
    N/A
    Thanks lesdit & Seilerts.
    Mine had the connecter slipped off also, but was not able to locate the wire without removing the silver vent on the left. It is working now - Thanks again !!
     
  5. ramutremblay

    ramutremblay Junior Member

    Joined:
    Apr 11, 2012
    22
    3
    0
    Location:
    Maui, Hawaii
    Vehicle:
    2004 Prius
    Model:
    N/A
    Hey all,

    You mind offering your thoughts/ suggestions?

    The dashboard lights along with reverse beep on our 2004 Prius stopped working today. I've exhausted every step recommended in this thread including Patrick's suggestion (checking 7.5A PANEL fuse under steering column), popped off the silver vent and made sure dimmer wire was properly connected. I've also checked additional fuses in the engine compartment. All those things check out fine.

    Curiously, I installed a new Optima D51 12 volt battery in the car last weekend. Everything's been working great until today. Wondering if today's issues could be related to last weekend's 12 volt install....?

    Any ideas where to go/ what to address from here?

    Thanks for taking the time to chime in!
     
  6. nh7o

    nh7o Off grid since 1980

    Joined:
    Dec 10, 2011
    1,686
    337
    0
    Location:
    Hawaii
    Vehicle:
    2009 Prius
    Model:
    II
    If your fuses are all OK, it sounds like your Combination Meter may not be working. They are notorious for failing eventually. Our mail delivery person has had two replaced now, with different failure modes each time.

    Other symptoms? Does the MPG data show up on the MFD? Does the car shut down normally?

    Toyota has an extended warranty out on the CM, so it might get replaced for free.
     
  7. ramutremblay

    ramutremblay Junior Member

    Joined:
    Apr 11, 2012
    22
    3
    0
    Location:
    Maui, Hawaii
    Vehicle:
    2004 Prius
    Model:
    N/A
    @nh 7o Thanks! I'll call customer service to see if our vehicle qualifies.
     
  8. Pchan

    Pchan New Member

    Joined:
    Jun 2, 2013
    5
    2
    0
    Vehicle:
    2005 Prius
    Model:
    N/A
    Yeah mine went out a while back. I took it to one Toyota dealership and and was going to charge for a diagnostic so I left. Went to the Toyota dealership where i purchased it. They said they know how to recreate the problem since it is sporadic. Also just to let you know it's a 9 year warranty of the vehicles manufacture. So don't let them try to charge you. They replaced mine free of any charge and gave me a rental.
     
  9. Zedhomme

    Zedhomme Member

    Joined:
    Aug 3, 2013
    227
    68
    0
    Location:
    Central Florida
    Vehicle:
    2016 Prius v wagon
    Model:
    Three
    Check all the following fuses page 435-436 in Owner's Manual:
    You may be able to narrow it down depending on what items are not working.
    They all refer to multi-information display or gauge and meter.
    In the fuse box under the dash, left of steering column:
    #7-7.5 amp;
    #8-10 amp;
    #13-15 amp (may have to initialize windows after removing this one.;
    #16-7.5 amp;
    #20-7.5 amp
     
  10. prairiecomm

    prairiecomm Junior Member

    Joined:
    Jul 2, 2011
    14
    1
    0
    Location:
    Iowa
    Vehicle:
    2008 Prius
    Model:
    Two
  11. HOWFAST

    HOWFAST Junior Member

    Joined:
    Jan 19, 2014
    24
    11
    0
    Location:
    Hawaii
    Vehicle:
    2005 Prius
    Model:
    N/A
    I'm having this issue now on my Prius. It's seems like a loose wire would be causing the problem. I'm outside the window so now I need to fix it.

    Gus//
     
  12. Bawo

    Bawo New Member

    Joined:
    Aug 22, 2014
    1
    0
    0
    Vehicle:
    2004 Prius
    Model:
    Two
    Speedometer sometimes does not come on when the ignition is on
     
  13. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    18,198
    6,461
    0
    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
  14. psfales

    psfales New Member

    Joined:
    Aug 1, 2015
    1
    0
    0
    Location:
    Naperville, IL
    Vehicle:
    2009 Prius
    Model:
    III
    The wisdom of the internet strikes again! This was exactly the problem I've been living with for some time (thinking a dealer fix would be very expensive) but once I found this post, it was fixed in well under 10 minutes. I popped the dimmer control which fell out in my hands because nothing was connected to it. So I popped the blank plate next to it and was able to use a long forceps through the blank hole to fish the connector up to the dimmer hole and hold it in position while snapping the connector back on the dimmer. Now it works great!
     
  15. PriusGuyfrom213

    PriusGuyfrom213 New Member

    Joined:
    Jul 20, 2017
    10
    1
    0
    Location:
    L.A.
    Vehicle:
    2006 Prius
    Model:
    II
    This worked for me but try at your own risk