Here is the secret for using one I-PASS transponder for multiple vehicles in Illinois.

Traveling On Illinois Tollways

Unless you just stick around your own hometown, there is a pretty good chance you are going to have to travel on the Illinois Tollway. At this point, you are pretty much forced to have an I-PASS transponder in your vehicle because paying with cash is no longer an option. Then you have to go on the internet to pay for tolls otherwise you will get fined.

Illinois Proposes Overhauling Toll Roads
Getty Images/MLS

Not A Frequent Tollway User

Maybe, you and your family don't travel on the Illinois Tollway very much. You own a few cars but don't find it necessary to have several I-Pass transponders. It is a little known fact, it is possible to have just one for all of them but you have to do it the right way.

According to,

"Transponders can be shared between cars and motorcycles registered to the same I-PASS account, but the transponder must be properly mounted in your vehicle whenever you drive on the Tollway."


"Sharing a transponder puts you at risk of forgetting to move the transponder. Be safe, and put a transponder in every vehicle. No transponder, no discount."


Illinois Proposes Overhauling Toll Roads
Getty Images/MLS

Here Is How To Do It

  • When traveling on the tollway have the transponder with you. If you don't, you'll be hit with the full fare.
  • Once you have the transponder, make sure you have all the vehicles that will be using it registered. If you put it in a car that isn't registered, you will be charged full price.
  • Even if you use the transponder on a limited basis, it still must be mounted on your windshield properly. Otherwise, it might now work going through a toll.
  • Of course, in the long run, it's easier to have one for each vehicle. If you prefer to own just one and share it, just follow the rules and you will be fine.

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Read on to explore the cost of gas over time and rediscover just how much a gallon was when you first started driving.

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