Transponders FAQs

If I have, both, a sticker and a FasTrak Flex transponder mounted inside my vehicle, will I be charged twice? Can I still use my FasTrak Flex switchable transponder for carpool discounts on other FasTrak bridges, lanes and roads? Why doesn't my transponder beep? Do motorcycles use sticker transponders? Do sticker transponders work on metalized windshields? I tried to move the sticker transponder and it broke. What should I do? Why do I need a transponder when you can read my license plate to pay tolls? How do transponders work? How do I request additional transponders? Should I adhere a sticker transponder if I use the I-15 Express Lanes in San Diego? How do I install my sticker transponder? Do I have to affix the sticker to my car in order for my account to continue to function? Where can I use my FasTrak transponder? What if I sell my car? What do I do with the sticker transponder? What if I get a new windshield? What do I do about the affixed sticker transponder? How many transponders do I need? Can I move my FasTrak transponder from car to car? Do I have to mount my FasTrak transponder on my windshield? I drive a motorcycle, do I have to pay a toll? Can I use a transponder? What should I do if my FasTrak transponder is lost or stolen? Do vehicles with two or more passengers ride for free on the 73, 133, 241 and 261 Toll Roads? How do I return my transponders? I have not received my transponder; can I drive on The Toll Roads? Where can I get a FasTrak transponder from The Toll Roads?