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

Driving 2001 Toyota Prius in hot weather

Discussion in 'Generation 1 Prius Discussion' started by beni, Jul 23, 2013.

  1. beni

    beni Junior Member

    Joined:
    Jun 13, 2012
    14
    0
    0
    Vehicle:
    2013 Prius
    Model:
    Three
    When ever I park my 2001 Toyota Prius for a long time in a sunny weather it gets hot inside and outside. When I want to start the car all the front panel lights and alarms will go ON. I still can drive the car without any problem. I could not get any code with the OBD2 sensor. All I can do is to delete the code. Any idea what this problem is? Again it just happens when the weather is HOT.
    Thanks
    Beni
     
    #1 beni, Jul 23, 2013
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,165
    50,061
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    how long have you owned it? did it just start doing this? what is the mileage?
     
    #2 bisco, Jul 23, 2013
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    18,200
    6,482
    0
    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    Clean the throttle body interior and throttle plate.
     
    #3 Patrick Wong, Jul 23, 2013
  4. beni

    beni Junior Member

    Joined:
    Jun 13, 2012
    14
    0
    0
    Vehicle:
    2013 Prius
    Model:
    Three
    I had the car for 3 years, it has 167000 mile on it and this is the third time that I have that problem. I put a new cooling converter pump on it last year. Don't know if is has anything to do with that?
     
    #4 beni, Jul 23, 2013
  5. bwilson4web

    bwilson4web BMW i3 and Model 3

    Joined:
    Nov 25, 2005
    27,665
    15,664
    0
    Location:
    Huntsville AL
    Vehicle:
    2018 Tesla Model 3
    Model:
    Prime Plus
    Try to park where the car will be in the shade when you are next going to drive it. The extra 30 seconds to walk a little further are much better than the minutes spent trying to cool the interior.

    With the lights and alarms ON? If you turn the car off and back on three times which normally resets the display alarms, do they go off? If not, the problem is "latched up."

    The Prius control computers have unique codes that a generic, emissions code reader can not see. For example, the Prius has a sophisticated tansmission and standard OBD2 scanners do not know to read the motor genertor temperatures.

    Please search through the messages and see what Prius-specific scanners exist and are known to work.

    Not without the codes from a Prius-aware scanner.

    Bob Wilson
     
    #5 bwilson4web, Jul 23, 2013
(You must log in or sign up to post here.)