Red Square Warning Light

Discussion in 'Gen 5 Prius Main Forum' started by daisy555, Jun 21, 2025 at 6:25 PM.

  1. daisy555

    daisy555 Senior Member

    Joined:
    Aug 11, 2015
    1,649
    691
    0
    Location:
    CT
    Vehicle:
    2009 Prius
    Model:
    N/A
    This is the second time I’ve had a large red square warning light pop up on my dash screen. It takes up almost the entire left side of the screen. Happened a while ago and I thought it was just a glitch but it just happened again. It says something but it turns off too quickly for me to read it.

    Of course I took my manual out of the car to read about the AC and can’t look it up. Just curious if anyone is familiar with this. Googling was NOT a good idea. : } It just flashes on and then disappears. Thanks
     
    #1 daisy555, Jun 21, 2025 at 6:25 PM
  2. Gokhan

    Gokhan Senior Member

    Joined:
    Oct 5, 2008
    5,649
    2,227
    0
    Location:
    Paramount CA
    Vehicle:
    2021 Prius Prime
    Model:
    Limited
    Probably automatic emergency braking (AEB) or automatic parking braking.
     
    #2 Gokhan, Jun 21, 2025 at 6:29 PM
  3. daisy555

    daisy555 Senior Member

    Joined:
    Aug 11, 2015
    1,649
    691
    0
    Location:
    CT
    Vehicle:
    2009 Prius
    Model:
    N/A
    While I’m driving? I forgot to mention that detail.
     
    #3 daisy555, Jun 21, 2025 at 6:34 PM
  4. Gokhan

    Gokhan Senior Member

    Joined:
    Oct 5, 2008
    5,649
    2,227
    0
    Location:
    Paramount CA
    Vehicle:
    2021 Prius Prime
    Model:
    Limited
    Yes, that red “BRAKE!!” warning would only come up while driving.
     
    #4 Gokhan, Jun 21, 2025 at 6:44 PM
  5. daisy555

    daisy555 Senior Member

    Joined:
    Aug 11, 2015
    1,649
    691
    0
    Location:
    CT
    Vehicle:
    2009 Prius
    Model:
    N/A
    Well there are no cars in front of me when it happens and no auto breaking occurring.
     
    #5 daisy555, Jun 21, 2025 at 6:47 PM
  6. Gokhan

    Gokhan Senior Member

    Joined:
    Oct 5, 2008
    5,649
    2,227
    0
    Location:
    Paramount CA
    Vehicle:
    2021 Prius Prime
    Model:
    Limited
    It can still get confused or detect something you didn’t see.
     
    #6 Gokhan, Jun 21, 2025 at 6:48 PM
    daisy555 likes this.
  7. Trollbait

    Trollbait It's a D&D thing

    Joined:
    Feb 7, 2006
    23,166
    12,320
    0
    Location:
    eastern Pennsylvania
    Vehicle:
    Other Non-Hybrid
    Or detect something that isn't there.
     
    #7 Trollbait, Jun 21, 2025 at 7:56 PM
    daisy555 likes this.
  8. schja01

    schja01 Senior Member

    Joined:
    Apr 22, 2005
    1,815
    1,205
    0
    Location:
    Chicagoland
    Vehicle:
    2024 Prius
    Model:
    Limited AWD-e
    Doesn’t even have to be in front of you. Thinking garage walls, etc.
     
    #8 schja01, Jun 21, 2025 at 8:42 PM
(You must log in or sign up to post here.)