I drive one car in winter and another in summer - do I need two transponders?
Using your transponder between vehicles may result in additional charges; the best way to avoid this is to lease a separate transponder for each vehicle that you plan to use on our highway. If your transponders belong to the same account, your additional transponders are discounted ($1.00 per month, or $9.95 if leasing annually). Lease an additional transponder online.
If you still to choose to move your transponder, remember to mount the transponder on your windshield 5 to 10 cm from the top and behind the rearview mirror and ensure both of your plates belong to your transponder account.