Red Triangle & Problem Light

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Hybrid Hobo, Jan 25, 2025 at 10:10 AM.

  1. Hybrid Hobo

    Hybrid Hobo Member

    Joined:
    Jun 5, 2018
    183
    48
    0
    Location:
    New Jersey
    Vehicle:
    2008 Prius
    Model:
    N/A
    Just got off the highway. The red triangle of death popped up on the dash as I was driving. A yellow "PROBLEM" light also came on at the same time. However...

    Both went away about 6 or 7 seconds. The car drove fine for a few miles until I exited the highway.

    I'm parked now and no warning lights of any kind are on the dashboard aside from the low pressure tire icon. Car is idling with no issues.

    Anyone know what that was about?
     
  2. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    16,567
    8,456
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2008 Prius
    Model:
    II
  3. Hybrid Hobo

    Hybrid Hobo Member

    Joined:
    Jun 5, 2018
    183
    48
    0
    Location:
    New Jersey
    Vehicle:
    2008 Prius
    Model:
    N/A
    I get my oil changed religiously every 3-4 months at Valvoline. It's been about 4 since my last one...so yes, that might be correct. 2 questions...

    *Are you certain that oil is the issue?

    *Is it safe to drive the car roughly 10 miles to my Valvoline shop?

    I don't want to stall out on the highway, seize the engine, or create any problems.

    Thanks!
     
  4. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
    10,907
    1,889
    0
    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    Well what I would do before I started driving 10 mi or 12 miles or any miles is check the oil on the dipstick It's under the hood pretty quick to do even in the cold another thing is to also make sure you have plenty of coolant when you had the triangle and the exclamation point in Amber on if this is what was happening what was the little green car on the multifunction display? Was it red?
     
  5. Hybrid Hobo

    Hybrid Hobo Member

    Joined:
    Jun 5, 2018
    183
    48
    0
    Location:
    New Jersey
    Vehicle:
    2008 Prius
    Model:
    N/A
    Tombuk, there was no green car icon lit up on the dash. Only the red triangle & a yellow PROBLEM light. Both came on at about the same time and shut off about 7 or 8 seconds later.

    As I noted in my OP, the only light currently on is the low tire pressure icon. It's been on about 2 weeks now as I haven't had time to get air.
     
  6. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    25,289
    16,500
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    What Tombukt2 is talking about whenever he goes on about the "green car" "turning red" is this:

    On every one of the gen 2 MFD screens (except the map itself), there is a different icon in the top left corner that identifies the screen. On one of the dozen screens, the "Energy Monitor" screen, the icon happens to be a green car.

    [​IMG]

    No matter what screen you happen to be on, if there is a problem to report, a problem display will cover up a top portion of the screen, and have a little red car icon at the left that ends up roughly where the icon of the original screen happened to be. Depending on the vintage of your MFD, it looks like one of these:

    [​IMG]
    [​IMG]

    In both cases, you can clearly tell this is just covering what was on the screen beneath and drawn over it. In the top version, they even gave it "3D" shadows to really make that point. Even in the bottom version, you can tell it has blanked out a top strip of the screen that was showing under it.

    So the real question is just, do you have the red-car problem icon showing on your MFD? It will show regardless of what MFD screen you have up. If you happen to have the Energy Monitor screen up, and you're not paying much attention, then yeah, it can look like a "green car" "turned red".
     

    Attached Files:

    MAX2 likes this.
  7. mr_guy_mann

    mr_guy_mann Senior Member

    Joined:
    Sep 3, 2020
    3,797
    1,800
    0
    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    When was the last time you checked the oil level? It can be low right now. It only takes a few minutes.

    If the low tire pressure warning functions properly, how can you "not have time" to check it? The tire(s) might be at 26 psi, or it might be at 12 psi. It could possibly fail at any point. The system is warning you that the car might be unsafe.

    Posted via the PriusChat mobile app.
     
  8. MAX2

    MAX2 Member

    Joined:
    Aug 12, 2024
    449
    127
    19
    Location:
    Third planet from the Sun
    Vehicle:
    2007 Prius
    Model:
    N/A
    Checking the coolant flow at the inverter is also important.
    The inverter circuit pump failure is quite common on old Gen2. The pump should work constantly and pump coolant when the car is turned on until it is turned off.