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California FasTrak Positioning Requirements

Discussion in 'Model S' started by berkeley_ecar, Jun 7, 2017.

  1. berkeley_ecar

    berkeley_ecar S 90D (fully loaded) delivered 18 Mar 2017

    Joined:
    Jul 21, 2014
    Messages:
    111
    I realize that there have been multiple discussions about positioning the CA FasTrak toll tag (transponder) properly for the Model S, but here I raise a slightly different issue. Many earlier owners experienced problems finding a location to place
    the toll tag, probably due to metallic coatings on their windshields. I find that in my 2017 Model S, there is no such problem, and I am able to place the toll tag anywhere on the windshield. The Bay Area FasTrak* Customer Handbook
    seems rather loose about placement, and I am inclined to place it to the left of the rear view mirror base. I've also thought
    about making a thin black plastic case to mount there, allowing me to easily slide the toll tag in and out of the case, making the whole thing less gaudy looking from the outside. Is anyone aware of more stringent placement/visibility requirements (for example, must the FasTrak logo on the toll tag be visible from the outside)?
     
    • Informative x 1
  2. ucmndd

    ucmndd Member

    Joined:
    Mar 10, 2016
    Messages:
    366
    Location:
    California
    There are no more stringent requirements that I'm aware of. I don't live in the Bay Area but travel there frequently enough that I keep a Fastrak transponder in the car. When I need it, I pull it out and set it on the alcantara portion of the dash so it doesn't slide around. Works fine, no issues. I note the same behavior in my 2016 MS, whatever interfering "coating" was on the windshield of the older cars is no longer there.
     
    • Informative x 1
    • Like x 1
  3. stopcrazypp

    stopcrazypp Well-Known Member

    Joined:
    Dec 8, 2007
    Messages:
    8,799
    Don't have a Tesla yet, but I do the same thing in my ICE car. When I need it, I throw it on the dash. I don't think there is any official placement requirement. If the transponder is detected, it beeps, if it is not, they fall back on the license plate.

    The fastrak website only has suggested mounting locations on the windshield because mounting it in certain areas violates California law prohibiting mounting objects on the windshield (other than very specific allowed exemptions, of which the suggested transponder mounting locations are a part of).
    FasTrak® - Keeping the Bay Area Moving
    Law section

    However, if you don't mount it, then obviously those laws don't apply.
     
  4. Mark Z

    Mark Z Active Member

    Joined:
    Mar 12, 2013
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    1,554
    Location:
    North Orange County
    If the CHP is looking for the tag, you want it in the specified locations. Upside down to the right of the mirror is working for the switchable FasTrak with the 2017 MS.
     
    • Like x 1
  5. Ulmo

    Ulmo Active Member

    Joined:
    Jan 19, 2016
    Messages:
    2,097
    Location:
    Vienna Woods, Aptos, California
    This is what I did (from recommendation from TMC) and have always had good results.
     
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  6. JPP

    JPP Active Member

    Joined:
    Feb 4, 2013
    Messages:
    2,067
    FWIW, I hate the look of the all white FasTrak transponder through the window. I have wrapped them in black vinyl electrical tape and used black Velcro or black 3M VHB double sided tape to mount. Nearly invisible.
     
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