Upgrade the side mirrors?

Discussion in 'Gen 4 Prius Accessories and Modifications' started by Dngrsone, Apr 23, 2020.

  1. Dngrsone

    Dngrsone Underwhelmed, to say the least

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    I have a 2016 Prius 2, and I'm thinking about upgrading the side-mirrors for blind-spot detection, et al.

    Will those mirrors plug right in, or what other pieces will I need to get them working?
     
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  2. The Professor

    The Professor Senior Member

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    It's more than just the mirrors though, and the blind spot warning indicator.

    There's radar sensors in the rear sides of the bumpers that detect a vehicle's presence - I assume these are not the ultrasonic sensors, as they work for a much further distance. There is software to adjust the settings of the BSM in the car settings (so you'd need a firmware update of some kind for the car's ECU), there's also the wiring between the mirrors and sensors to the ECU (I doubt any of it is present).
     
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  3. Dngrsone

    Dngrsone Underwhelmed, to say the least

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    Thanks. I figured it was a long-shot... maybe I'll luck out and find a 4th gen mostly intact at a wrecking yard that I could strip.
     
  4. alanclarkeau

    alanclarkeau Senior Member

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    What country are you in? There are different specifications, depending on which one.
     
  5. alanclarkeau

    alanclarkeau Senior Member

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    The USA diagram shows:

    upload_2020-4-25_23-12-32.png

    Whether the ECU is the same, or the wiring bus - it seems like they could be some different ones, depending on whether it's Li-ION or NiMH. It also looks like there is a specific bus for models with Blind Spot Monitoring, or Clearance Sonar or TSS.

    It might be easier to change cars.
     
  6. Dngrsone

    Dngrsone Underwhelmed, to say the least

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    Thanks, I'm in the US

    Well, it was a thought. Got a really good deal on this model 2 used, and don't plan on trading it in until I wear it out... which won't take long: my work commute will have me doing close to 20k miles a years.
     
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