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Testing the TSS on my new TRD Sport

Discussion in '3rd Gen. Tacomas (2016+)' started by Rjwz28, Aug 12, 2019.

  1. Aug 12, 2019 at 10:39 PM
    #1
    Rjwz28

    Rjwz28 [OP] Well-Known Member

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    How do I test if the TSS is working besides trying to ram a car in front of me? Got a new Tacoma and don’t know if it is on or not. I’m figuring it is operational by default but not sure.

    Thanks
     
  2. Aug 12, 2019 at 11:06 PM
    #2
    Beancooker

    Beancooker Well-Known Member

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    None yet, that’s why I’m here.
    TV or refrigerator box. That should work.
     
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  3. Aug 12, 2019 at 11:15 PM
    #3
    Apollo14

    Apollo14 El Guapo

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    The TSS is just a term used to describe the collective system suite of the adaptive cruise control, lane keep assist, and preload brakes in case traffic ahead brakes suddenly.

    Go on highway, set cruise control. Adjust distance button on right lower steering wheel arm. As you approach slower vehicles, the truck will reduce speed. Then change lanes to pass and it will re-accelerate.

    Note: you will definitely be able to tell because the system is extremely quirky and the speed reduction is usually pretty abrupt. Also if traffic slows down below 25mph, the Cruise will disengage and will not stop the the vehicle.

    The lane keep assist is pretty much garbage. It only gives an “audible” alarm and will give a warning in the dash cluster. But even if you have the radio mostly off or the windows are down, you won’t even notice it is on. It doesn’t correct your path and often doesn’t even recognize the road lines.

    The truck does pretty decent on the emergency braking assist but (again) if everyone is coming to a stop, you have to jump on the brakes below 25mph.

    FCA has a pretty decent system where the vehicle will stop itself completely and then resume speed as appropriate when traffic starts moving again.

    Unfortunately, this is another area where Toyota is grotesquely behind the technology curve. It’s just too basic relative to other vehicle manufacturers.
     
  4. Aug 12, 2019 at 11:21 PM
    #4
    TRD-Troll

    TRD-Troll Thread Killer

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    IIHS uses a large airbag for their testing of pre-collision systems IIRC.

    Some kind of large inflatable pool toy (or raft turned upright) would probably work. Maybe add a foil layer if it needs to be radar reflective.
     
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  5. Aug 12, 2019 at 11:25 PM
    #5
    Rjwz28

    Rjwz28 [OP] Well-Known Member

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    For detecting something stationary, should the truck come to a complete stop? I heard it reduces the speed 25 mph max.
     
  6. Aug 12, 2019 at 11:27 PM
    #6
    Apollo14

    Apollo14 El Guapo

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    No. The system completely disengages. You are on your own below 25mph. You’re right in that it SHOULD stop the truck but I guess that would take too much research and development for Toyota.

    As for testing it, the highway method described earlier is the safest and easier way. If the truck reduces speed appropriately and picks up again when all clear, your TSS is good.
     
  7. Aug 12, 2019 at 11:30 PM
    #7
    OnHartung'sRoad

    OnHartung'sRoad -So glad I didn't take the other...

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    The back of a parked semi ought to do it, just like the one that stopped me while I was riding my 10-speed to school and looked over at some girls... too bad 10-speeds didn’t come with the TSS safety nanny back then.
     
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  8. Aug 13, 2019 at 12:48 AM
    #8
    Rjwz28

    Rjwz28 [OP] Well-Known Member

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    Is the system operational by default? So I don’t need to activate it?
     
  9. Aug 13, 2019 at 1:38 AM
    #9
    Apollo14

    Apollo14 El Guapo

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    I believe the preload brakes are. If it senses your about to crash it will load them up to help reduce stopping distances. But unless the adaptive cruise is being used, it won’t slow the truck down. Instead you’ll get a red “BRAKE” message and a bunch of beeping in the center screen.

    With the adaptive cruise on, it will slow the vehicle down to 25 and then disengage and assumes you will take over
     
  10. Aug 13, 2019 at 4:28 AM
    #10
    oogielaflick

    oogielaflick Well-Known Member

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    Yes, it is operational by default. An easy way to check it, is to engage DRCC [Dynamic Range Cruise Control] or just hit the cc button somewhere around town, and then just drive. If someone is stopped at a stop sign, you will definitely FEEL the brakes almost slamming on brakes about a half block away from the stopped car! I use my regular CC around town all the time, and I quite using the DRCC within two days of getting my 2019 TRD Sport. The dang thing was going to wear out my brakes at the rate it was always slamming on the brakes for really, no reason! But the short answer is "Yes", to your question...
     
  11. Aug 13, 2019 at 5:47 AM
    #11
    Beancooker

    Beancooker Well-Known Member

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    None yet, that’s why I’m here.
    I assume that it works the same as the collision prevention on my E63. It detected the car in front if me was at a dead stop. I hadn’t hit the brakes (because I was talking to my wife and not paying attention) and the car applied the brakes (slammed on the brakes hard AF) and brought my car to a complete stop without hitting the car in front of me, which was still at a dead stop.

     
  12. Aug 13, 2019 at 5:54 AM
    #12
    Dryfly24

    Dryfly24 Winning firefights/chained to a steering wheel

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    I wonder how much money they have to pay that human crash test dummy? Especially the pedestrian.
     
  13. Aug 13, 2019 at 5:54 AM
    #13
    Cratical

    Cratical Well-Known Member

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    Lane departure on these trucks is only meant to be a warning, and not correct any steering at all. It doesn’t say anywhere that we have lane departure assist but it does say we have lane departure warning.

    It’s still a great feature to have if your on long drives on the highway or it’s a dark road at night. I know I’ve struggled keeping my eyes open on more than a few occasions when I used to drive back and forth 2 hours to college and would’ve loved to have this feature on my 01 corolla.

    Even though these technologies are basic compared to what they’ve already advanced to, they’re still a welcome addition to any vehicle and I’m glad they come standard rather than having to upgrade to tech or premium. Toyota didn’t have to include this at all on our vehicles or at the very least could have rolled it into another package and charged $2k+ for it
     
  14. Aug 13, 2019 at 6:02 AM
    #14
    Beancooker

    Beancooker Well-Known Member

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    None yet, that’s why I’m here.
    Probably not as much as you think. There’s always somewhere that the gene pool is shallow and someone willing to do something stupid for little to no compensation.
     
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  15. Aug 13, 2019 at 6:40 AM
    #15
    nickrick78

    nickrick78 Well-Known Member

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    I had a 17 Lexus RX350 that had adaptive cruise control that would stop and go in bumper to bumper traffic. I don't know how much more money it would've cost to use this technology on the Tacoma.
     
  16. Aug 13, 2019 at 9:26 PM
    #16
    Rjwz28

    Rjwz28 [OP] Well-Known Member

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    So I still need to engage DRCC or hit CC (cruise control?) for it to work?

    I’m more confused now after reading everyone’s answers! Ha ha.
     
  17. Aug 13, 2019 at 9:35 PM
    #17
    markmizzou

    markmizzou Well-Known Member

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    A back step for when I get older, N-fab step bars , Carhartt seatcovers, 4Runner wheels, Topper, and "tats all folks"! --for now!!
    Our 2015 Subaru OB ( with "eyesight") will do that with the exception of starting again ( on it's own) from a FULL stop -- when that happens all you do is hit the resume button on the steering wheel then it will continue on -following the car in front at the distance you specify
     
  18. Aug 13, 2019 at 9:37 PM
    #18
    El_Rocinante

    El_Rocinante Well-Known Member

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    No need...it will stop you even when the cc is off. I’ve done it several times. It does not take you down to 25 mph then let you hit something...that would be dumb. I tested a grille for an aftermarket co. And did it a bunch.
     
  19. Aug 13, 2019 at 9:40 PM
    #19
    Bishop84

    Bishop84 Well-Known Member

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    We test it on inspection simply by testing cruise control radar to a stop (usually cuts out around 20kph), and lane departure tests the camera.
     
  20. Aug 13, 2019 at 9:41 PM
    #20
    markmizzou

    markmizzou Well-Known Member

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    A back step for when I get older, N-fab step bars , Carhartt seatcovers, 4Runner wheels, Topper, and "tats all folks"! --for now!!
    Also in reply to some other responder I can't believe Toyota would make the Auto braking feature not work below 25MPH ???? I do not own the "Toyota system" as I have a 17 -- But someone else please chime in and tell me this ain't so!
     

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