Resetting Check Engine Light

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by moebius, Oct 22, 2005.

  1. moebius

    moebius New Member

    Joined:
    Oct 15, 2005
    1
    0
    0
    I've reset the check engine light in the past using a button combination on the dash in my 2005 but now I can't remember how. Can anybody help me out?
     
  2. Frank Hudon

    Frank Hudon Senior Member

    Joined:
    Jan 11, 2004
    4,147
    14
    0
    Check engine light or Service engine light?
     
  3. kaptaink

    kaptaink Junior Member

    Joined:
    May 23, 2005
    52
    0
    3
    Location:
    South Western NY
    Vehicle:
    2005 Prius
    Model:
    Three
    Or did you mean the maintainence required?
     
  4. RoboChemE

    RoboChemE New Member

    Joined:
    Apr 29, 2005
    8
    0
    0
    Location:
    SF Bay Area
    I just had my first oil change done. How do you turn off the "maintenance required" light?
     
  5. skhess58

    skhess58 Junior Member

    Joined:
    Oct 26, 2005
    1
    0
    0

    With the car off press and hold the ODO button. Step on the brake and hit the power button to go into READY (may work with IG ON too?). Keep holding the ODO button and watch the dash where the odometer readout usually is...you'll see dashes then the prior odometer reading will return and you can let go of the button.

    Now the maintainence light will flash on briefly upon start up in 4500 miles then will come on and stay on in 5000 miles
     
  6. DanMan32

    DanMan32 Senior Member

    Joined:
    Aug 27, 2004
    3,799
    25
    0
    Location:
    Tampa Bay, FL
    Its also in your owner's manual under maintenance I think.
     
  7. Mystery Squid

    Mystery Squid Junior Member

    Joined:
    May 18, 2005
    2
    3
    0
    To "refine" these instructions a bit:

    Make sure you're set to ODO, not "Trip A" or "Trip B", or it won't work (drove me nuts for a few minutes until I figured it out). Turn it on, make sure you're on ODO, shut it down, then follow the directions above.

    As Danman said, it's in your manual, page 120 I believe (I just did it tonight after an oil change).
     
  8. Mystery Squid

    Mystery Squid Junior Member

    Joined:
    May 18, 2005
    2
    3
    0
    I think this should be PINNED.

    :ph34r:
     
  9. DanMan32

    DanMan32 Senior Member

    Joined:
    Aug 27, 2004
    3,799
    25
    0
    Location:
    Tampa Bay, FL
    Or part of it put in the KB. As I posted elsewhere, we seniors should get together and organize the KB forum.
     
  10. sundy58

    sundy58 Junior Member

    Joined:
    Dec 28, 2008
    33
    2
    11
    Location:
    Donna, TX
    Vehicle:
    2008 Prius
    Model:
    Two
    I know this is old but: the owners manual is wrong. It says to be on trip "A" and that does not work as stated above.
     
  11. SDB54

    SDB54 Junior Member

    Joined:
    Aug 24, 2019
    82
    32
    0
    Location:
    Northern CA
    Vehicle:
    2006 Prius
    Model:
    V
    Back to the OP, can you reset the CEL without going to the dealer or a mechanic?
    NOT asking about maintenance light reset.
     
  12. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    101,084
    45,830
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    o/p only made one post 14 years ago, but i believe you can with a code scanner
     
  13. SDB54

    SDB54 Junior Member

    Joined:
    Aug 24, 2019
    82
    32
    0
    Location:
    Northern CA
    Vehicle:
    2006 Prius
    Model:
    V
    I didn’t realize the thread was that old, but sometimes these threads start off as one thing and get completely sidetracked.

    Thanks for the info. I think Patrick Wong in another thread mentioned disconnecting the negative terminal of the 12 V battery will also reset the check engine light?
     
    #13 SDB54, Oct 28, 2019
    Last edited: Oct 29, 2019
    bisco likes this.
  14. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    6,570
    3,411
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    Both methods will work, providing you have fixed the error that caused (is causing) it to light up. It is also a good idea to read the codes and record what they are before dismissing them.
     
    SDB54 and Mendel Leisk like this.
Loading...