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Do my brake lights come on?

Discussion in 'Model S: Driving Dynamics' started by MartyL, Oct 17, 2017.

  1. MartyL

    MartyL Member

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    When I'm using adaptive cruise control or autopilot, do my brake lights come on when I'm automatically slowed down?
     
  2. brkaus

    brkaus Well-Known Member

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    Yes, if it’s slowing above a specific rate. But if it is slowing a bit they will not. For example if you click down to reduce by 1-2 mph it doesn’t react fast, thus no brake lights.

    It is easy to see at night with the rear camera on.

    You can also see the brake lights in the little car in the dashboard.
     
    • Like x 1
  3. Az_Rael

    Az_Rael Supporting Member

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    Depends on how fast it slows you down. You can see your brake lights on the little car avatar on the instrument cluster. Unless you have a red car, then it's hard to see.
     
  4. BerTX

    BerTX Supporting Member

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    Yes, if the slowing is sufficient to make the brake lights come on. Not all regenerative braking causes the brake lights to operate. You can watch the representation of the car on the dash -- when the brake lights come on there, then your brake lights are on.

    Edit: haha, 3 answers for the price of one!
     
  5. kort677

    kort677 Banned

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    yes, you can confirm by looking at the little car in the dashboard. if the brake lights are on it will show there.
     
  6. Max*

    Max* Charging

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    Looking at the brake lights on the little car is hard to do when your tail lights are on. Look at the cars strip on top, it's really easy to tell that way.
     
    • Informative x 2
  7. David29

    David29 Supporting Member

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    It is funny, I never thought about this when i drove manual transmission cars, even ones with Diesel engines and heavy engine braking effects (much like regenerative braking in its effect, believe me). Nothing puts the brake lights on when a car with a "stick" downshifts to decelerate. I wonder if any accidents result from drivers behind the cars being caught unaware by the deceleration....?
     
  8. MartyL

    MartyL Member

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    Thanks!
     

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