Help! Red Traingle on 2002 Prius

Discussion in 'Generation 1 Prius Discussion' started by Deep Fried Asparagus, Jan 27, 2020.

  1. Deep Fried Asparagus

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    Hello all,

    Newcomer here. I currently drive a 2002 Prius (1st gen). I got it from my great grandmother (1st owner) in Fall 2018 with 32,000 miles on it. It had no issues: serviced regularly, garaged, etc. I have been driving it since then with no problems, other than a bad wheel bearing hub, which I replaced myself.

    However, today I went to turn my car on and this (attached picture) came up. Does anyone know what this means? I do not have a code reader, so I'd prefer not to get one unless it's absolutely necessary. I am worried that I will have to spend a ton of $$$ on a new battery :/ Should I take it to the local Toyota dealership to have it checked on?

    Responses are much appreciated!
     

    Attached Files:

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  2. Trombone

    Trombone New Member

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    See 2002 Owner's Manual, p. 99: "Hybrid System Warning Light. This light comes on if there is a problem in the electric motor, inverter unit, hybrid vehicle battery, etc. If this light comes on, stop your vehicle in a safe place immediately and contact your Toyota dealer." Etc., etc. You have two options, as I see it: (1) take it to the Toyota dealer for a diagnostic check (i.e., code read-out); (2) take it to a mechanic who specializes in hybrid vehicles. As there seem to be a number of these on the west coast, you might have one in your area of Oregon. Note that most OBD diagnostic code readers cannot retrieve all of the specialized Gen. 1 codes; the Graham Mini-Scanner will, if you can find one, and of course the dealer's service dep't can, as also the independent hybrid shop. With such a low mileage car, I'd be inclined to take it to the dealer first and see what they say, then decide whether its worth fixing. Good luck, and let us know how it turns out.
    Silver '02 Classic w/146K miles
     
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  3. Priuslover09

    Priuslover09 Member

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    I would to get the codes and battery checked out.
     
  4. Nelsonprius

    Nelsonprius Junior Member

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    You can get a OBDII diagnostic code reader like CARISTA which can read codes with Dr Prius App for $30 . Your HV battery likely has a bad module or corrosion on the module contacts. Greenbean can replace the HV with a long warrantee which is ideal for a car so new-like.
    Can you check the 12volt battery on the L side of the trunk with an voltmeter ? It can cause the light to go on too if it goes below 12v
     
  5. Q*bertZ

    Q*bertZ Junior Member

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    You replaced the axle hub? On the Prius with only 32,000 miles on it? Which one? Let me guess, back right?

    You could take the HV battery apart yourself and just clean the connectors. That always fixes mine. Are you mechanically inclined? If you can replace a wheel hub you should be able to do the work yourself.
     
  6. Aaron Vitolins

    Aaron Vitolins Senior Member

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    With the hybrid battery being 18-19 years old, I would say it’s had a long good run, and I wouldn’t be surprised if it’s on its way out :/
     
  7. ChapmanF

    ChapmanF Senior Member

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    Do note that in the OP's photo of the MFD screen, the icons for the power steering and the battery are both greyed out. Only the some-miscellaneous-other-problem icon on the right is red. I would take a moment to breathe, get the codes read, and find out what the miscellaneous other problem is.
     
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