SunPass Installation

As a SunPass customer, you are required to properly mount your transponder. Handholding the transponder often causes inconsistent communications between the transponder and the lane reader, which can lead to Uniform Traffic Citations.

Before installing, please see this Important Information on Special Windshields.

Suction cups attached to the SunPass now make it easier than ever to mount the transponder to the windshield.
Back of a transponder, showing suction cups.

Installing SunPass Mini Sticker Transponder
The SunPass Mini Sticker Transponder cannot be hand-held or moved from car to car. It must be permanently mounted to the inside of the windshield or it won’t work, because the windshield acts as an antenna. Once removed, the Mini will no longer function and cannot be reattached to the windshield. indicates a  fileClick here to see Mini Transponder Installation Instructions.

SunPass Mini

Position the transponder horizontally on the windshield so it is to the right or left of the rearview mirror -- see drawing. It must also be at least 2 inches below the windshield frame.

Windshield locations for installation.

Alternative transponder mounting locations
If the windshield has a solar tint stripe, install the transponder at least 2 inches below the stripe. Be careful not to position the transponder so it obstructs the driver's forward view.



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