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

2019 LE - adding auto headlights?

Discussion in 'Gen 4 Prius Accessories and Modifications' started by Yzvessel1, Jan 22, 2020.

  1. Yzvessel1

    Yzvessel1 Junior Member

    Joined:
    Jan 21, 2020
    18
    5
    0
    Location:
    Michigan
    Vehicle:
    2019 Prius
    Model:
    LE AWD-e
    Have had my 2019 Awd-e LE for 8,000 miles now. Decided to go with cloth because I knew I wanted to add “real leather” seats in the future and the cost to do that was less than upgrading to XLE...

    ...BUT the one thing I didn’t think of was the auto headlights. Had a Rav4 XLE prior with auto light and am in the habit of not remembering to turn on my lights now.

    Simple solution would be to just remember but I noticed that my LE has the “ambient” light sensor in the middle of the dash. Is it possible to order an XLE stalk and hook it up to that sensor? I have zero experience however.

    I saw a few threads mention that gen4s might not be able to do this but wasn’t sure of the AWD-e was maybe a bit different.

    Appreciate the help. Overall loving the Prius and very happy to make switch to Hybrid.
     
    #1 Yzvessel1, Jan 22, 2020
  2. alanclarkeau

    alanclarkeau Senior Member

    Joined:
    Feb 24, 2016
    7,041
    7,580
    0
    Location:
    near Brisbane, Australia
    Vehicle:
    2016 Prius
    Model:
    N/A
    I'd doubt it - it would almost certainly need some computer programming, it's hard to know if the appropriate wiring is there either. Most things like that aren't retro-fittable. But you could ask your dealer.
     
    #2 alanclarkeau, Jan 22, 2020
  3. Yzvessel1

    Yzvessel1 Junior Member

    Joined:
    Jan 21, 2020
    18
    5
    0
    Location:
    Michigan
    Vehicle:
    2019 Prius
    Model:
    LE AWD-e
    Thanks for the reply. I am going to check with my dealer. It’s would seem odd to have the ambient light sensor there if it wasn’t meant to be used... even in an LE. Especially with the auto-high beams controlled by the camera. I guess the sensor could just not be wired?
     
    #3 Yzvessel1, Jan 23, 2020
  4. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    6,802
    6,453
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    Are you sure you aren't referring to the sun sensor? The HVAC system takes guidance from the sun sensor on the dash to tell the difference between X° and X° with full sunshine blasting in, because otherwise it would always be chasing its tail as you drove from light to shadow resulting in wide temperature swings.

    As far as I know this is completely independent from whatever they use to enable auto headlights.
     
    #4 Leadfoot J. McCoalroller, Jan 23, 2020
    kithmo likes this.
  5. Yzvessel1

    Yzvessel1 Junior Member

    Joined:
    Jan 21, 2020
    18
    5
    0
    Location:
    Michigan
    Vehicle:
    2019 Prius
    Model:
    LE AWD-e
    That’s a good call-out. I was referring to this sensor (see image) and while it does say “if equipped” it also mentions control of the air conditioning. So perhaps on the LE the sensor is limited to only that feature? Interesting.
     

    Attached Files:

    #5 Yzvessel1, Jan 23, 2020
    Leadfoot J. McCoalroller likes this.
  6. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    6,802
    6,453
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    Okay, so the same sensor feeds both systems. Good to know. We haven't got auto headlights in our car either.
     
    #6 Leadfoot J. McCoalroller, Jan 23, 2020
  7. Mark.Harris

    Mark.Harris Junior Member

    Joined:
    Mar 29, 2020
    1
    0
    0
    Location:
    New Hampshire
    Vehicle:
    2016 Prius
    Model:
    Two
    Tried adding a stalk only to a 2016 2 from a 3 with auto light function. Did not work. Have not gone any further with it.
     
    #7 Mark.Harris, May 1, 2020
(You must log in or sign up to post here.)