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

master warning light

Discussion in 'Gen 4 Prius Main Forum' started by GSHOCK003, Nov 20, 2018.

  1. GSHOCK003

    GSHOCK003 Junior Member

    Joined:
    Sep 3, 2018
    5
    3
    0
    Location:
    Somerset, NJ
    Vehicle:
    2018 Prius
    Model:
    Three Touring
    Hi all:

    I'm not sure if anyone has experienced this. When I was driving home today from a 60 miles trip (city and hwy), the master warning light flashed once and buzzed once. The light didn't stay on. I tried reading the code with obd2 at home. But there was no code. Is this normal?

    Thanks,
     
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,801
    48,999
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    can be for one of the safety systems i think. check your oil level

    what code reader? it may not be prius aware.
     
  3. GSHOCK003

    GSHOCK003 Junior Member

    Joined:
    Sep 3, 2018
    5
    3
    0
    Location:
    Somerset, NJ
    Vehicle:
    2018 Prius
    Model:
    Three Touring
    Thanks for the reply Bisco. The oil level seems ok. I'm using VEEPEAK WIFI OBD2 scanner. I'm using Dashcmd app. The car seems to run fine and the warning hasn't come back.
     
    bisco likes this.
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,801
    48,999
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    excellent(y)
     
  5. alanclarkeau

    alanclarkeau Senior Member

    Joined:
    Feb 24, 2016
    7,041
    7,580
    0
    Location:
    near Brisbane, Australia
    Vehicle:
    2016 Prius
    Model:
    N/A
    What did the dealer service say about it?
     
  6. GSHOCK003

    GSHOCK003 Junior Member

    Joined:
    Sep 3, 2018
    5
    3
    0
    Location:
    Somerset, NJ
    Vehicle:
    2018 Prius
    Model:
    Three Touring
    I've not brought it in for service yet. I'll bring it up when it's up (in a couple of weeks). I'll report back.
     
  7. alanclarkeau

    alanclarkeau Senior Member

    Joined:
    Feb 24, 2016
    7,041
    7,580
    0
    Location:
    near Brisbane, Australia
    Vehicle:
    2016 Prius
    Model:
    N/A
    I had a series of malfunctions show 2½ yrs ago - ended up being the brake light switch faulted - possibly once only. But I got the dealer to look - the Malfunctions each said something like - "take to dealer".