SafetySense 3.0 Icon/Acronym "Cheat Sheet"

Discussion in 'Gen 5 Prius Main Forum' started by Bechi, Aug 20, 2025 at 9:13 AM.

  1. Bechi

    Bechi Junior Member

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    Well, I'm still waiting for the registration and plates to be finalized so I can pick up my new AWD Limited, so in the meantime I put together a "cheat sheet" for myself to get up to speed on all of the new fancy icons and acronyms that have me singing "Old MacDonald". I'm throwing this out to the group in case anyone finds themselves as baffled as I am and may find this of use.

    Bechi
    with a LTA here and a LDA there, here a BSM, there a PCS, everywhere a PCS, E-I-E-I-O!
     

    Attached Files:

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  2. BiomedO1

    BiomedO1 Senior Member

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    You may want to look at and adjust settings of the PCS. I've got the previous generation and I can tell you from experience - it almost gave me a heart attack when it first activated - mine doesn't automatically brake. My entire panel turned RED and BRAKE was displayed. I was in the right lane and the car in front was turning-off into a parking lot. I guess I was closing on the car making the turn too fast - I had a good 5-6 car lengths. Didn't touch my brakes, because the warning startled me. The car in front cleared my path and I cruised by.
    I've tripped that alarm about every 6 months, so it no longer startles me.

    Hope this helps....

    PS; add PDA to the list; predictive driver assist.
     
    #2 BiomedO1, Aug 20, 2025 at 9:51 AM
    Last edited: Aug 20, 2025 at 10:54 AM
  3. Bechi

    Bechi Junior Member

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    Thank you Biomed01! I will double-check PCS, and add PDA. Since I haven't taken delivery of the car yet, I'm going by the Owner's Manual I downloaded (hence the page references).
     
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  4. KMO

    KMO Senior Member

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    So you've managed to hit something without it braking? o_O
     
  5. BiomedO1

    BiomedO1 Senior Member

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    I haven't HIT anything! I'm saying the software and sensors aren't all that great and people who rely on them are going to have a rude awaking when something actually does happen. They're going to blame the car, but it's really the driver's fault for NOT paying proper attention. These gadgets are nice, but the drivers' ultimately responsible......
     
  6. Xse

    Xse Junior Member

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    Even though I come up the street with the car on it’s own pwr
    I don’t know who was guicker me or Xse which almost knocked a kid off his bike
    Comes out from between the houses didn’t look right I was there
    Parents thank me but they haven’t learned to slow down on the street I am on
    Safety Sense Systems works quite well on Xse
     
  7. BiomedO1

    BiomedO1 Senior Member

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    I don't believe current technology supports a side scan of something entering your pathway perpendicular to your drive path. That's something YOU should've caught. As stated earlier, the driver (pilot) is ultimately responsible - NOT the car. I commend you for driving at a safe speed though the neighborhood. We had to petition the city to install speed bumps to slow people down. Drivers don't "short-cut" through our neighborhood any more. Neighbors park their cars in front or behind those speed bumps to prevent cars from going around them.
     
    #7 BiomedO1, Aug 20, 2025 at 12:58 PM
    Last edited: Aug 20, 2025 at 1:19 PM
  8. KMO

    KMO Senior Member

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    My point is that you can't say that yours "doesn't automatically brake" if you haven't been a situation where you were actually going to hit anything.

    Stage one of the system in a risk of a collision is the warning you got. Stage two is it actually braking itself.
     
  9. Hammersmith

    Hammersmith Senior Member

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    Yep. I've had both the warning and the actual braking in different situations. I've gotten just the warning both at speed(highway) and during slow(parking lot/traffic jam). I've gotten actual braking once or twice while backing out in a parking lot and a vehicle or person came out of a blind spot while I was in reverse. I was creeping out because of lack of visibility in every one of those cases, so it wasn't a very hard stop.
     
  10. KMO

    KMO Senior Member

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    If you read the manual, you'll see that is a function of the current system, although it won't be as capable as something directly ahead.

    Capability depends on whether you have the front side radar or not. (I believe in the US plug-ins do, non plug-ins don't, except for Hammersmith's upgraded one when/if he gets Techstream working).

    Manual says:

    Intersection collision avoidance support (crossing vehicles)

    Detects: Vehicles, motorcycles:
    Vehicle speed: Approximately 5-60 km/h (3-38 mph)
    Crossing vehicle speed: Your speed or less; and approximately 40 km/h (25 mph) or less if no front side radar, or 50 km/h (31 mph) or less if with side radar
    Relative speed between vehicles: Approximately 5-60 km/h (3-38 mph)​

    There's also support for catching you turning into the path of vehicles, pedestrians or cyclists.
     
  11. BiomedO1

    BiomedO1 Senior Member

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    From Toyota TSS 2.0
    When the brakes are applied too softly by the driver, the system may automatically apply more braking pressure. If the driver ignores the warnings, the system might also automatically apply the brakes.
    You can go ahead and try to run your car into a wall to test this, but I'm not going to. You probably have a more advanced version of TSS; again I'm not going to try to test it.

    I read on this blog, about a year or two ago when someone wasn't paying attention and was whining how she rear-ended someone and TSS didn't apply the brakes. These cars are NOT autonomous drive!!!!

    YMMV
     
  12. ColoradoBoo

    ColoradoBoo Senior Member

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    Yep, many Toyota owners keep their cars so many years it's, often, a pretty steep learning curve when they replace it!

    When my wife went from a 2008 Corolla to a 2017 Prius, she called me at work because she couldn't turn on the A/C! "There's no knob!"

    About the "automatic braking", both our Prius' WILL display a big, red banner saying "BRAKE" and apply the brakes to make it stop if we are driving into the garage and near stuff in the front. (Our garage is pretty full of all of my tools and stuff for working on cars.)

    When driving around, the only car we have that WILL automatically brake is her 2024 Corolla with the 3.0 safety sense but I don't know if it will actually brake so hard it stops the car....haven't tested it. (Not sure how) To test the 2.0 safety sense, just put an empty box and drive into it (slowly)....it'll stop itself!

    I saw a video that showed how Toyota is, also, working on "smart" headlamps that will turn left and right for you when you make a turn or are driving on a curvy road....pretty cool.
     
  13. BiomedO1

    BiomedO1 Senior Member

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    I think some of those high-end exotic cars currently do that.
    Good luck replacing the headlamp assembly when it fogs out on you. Mortgage the house to pay for a replacement part.:eek::(:mad:
     
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  14. ColoradoBoo

    ColoradoBoo Senior Member

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    So true....those LED headlamps are big bucks, no whammies! The Car Care Nut, on youtube, just reviewed a new Ford F-150 Lightning and showed that they put the rear sensors inside the rear LED taillamps....good luck affording that bad boy if you ever need to replace one!
     
  15. Hammersmith

    Hammersmith Senior Member

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    Some of the headlights for the European exotics cost $7500USD or more EACH. And they've got their own ECUs inside that need to be programmed to the car by the dealer. So tack on a few more hundred for labor at a dealership even if you do the installation yourself. (it also means a used headlight might not work even if it came off an identical car)
     
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  16. Hammersmith

    Hammersmith Senior Member

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    One of the nice things about the gen5 is that the headlight lens is vertical and kind of hidden under part of the hood. It should mean it's far less likely to fog from UV damage than past Prius headlights that were more exposed.
     
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  17. KMO

    KMO Senior Member

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    A video with some tests of the G5 Prius safety systems here (as well as actual crash tests).

     
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  18. KMO

    KMO Senior Member

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    The mid and high trims of the Prius currently do, outside North America.

    The Adaptive High-beam System uses a front camera located on the upper portion of the windshield to detect the brightness of the lights of vehicles ahead, streetlights, etc., and automatically controls the light distribution of the headlights.
    • According to the vehicle speed, the brightness and illuminated area of the high beams are adjusted.
    • When driving around a curve, the system uses the high beams to brightly illuminate the direction of travel of the vehicle.
    • The high beams are illuminated so that the area around a vehicle ahead is shaded.
    • According to the distance to a preceding vehicle, the illuminated area of the low beams is adjusted.
     
  19. BiomedO1

    BiomedO1 Senior Member

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    Electronic lock-outs - Nice!!! We used to reclone EEPROMs to get around this. I believe the EU has some pretty good right to repair laws on the books, so someone may be able to devise a work-around.
    Headlamps that expensive would encourage third parties to do R&D into alternatives; especially for a high volume selling cars like Toyota. The economics just doesn't pencil out for one-off exotic cars.
     
    #19 BiomedO1, Aug 20, 2025 at 2:49 PM
    Last edited: Aug 20, 2025 at 2:56 PM
  20. Hammersmith

    Hammersmith Senior Member

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    Yeah, I think the lock outs were because the prices got so high the headlights became theft targets.

    The gen5 doesn't have ECUs in the headlights, so no worries there yet.

    Current prices for gen5 headlights - new OEM:
    LE/SE - $1075.13 each ($595 with sales)
    Others - $1283.00 each ($710 with sales)