The toll tag switch positions are used to tell the toll system the number of occupants in the vehicle, so the correct toll amount is collected. The switch positions also assist with California Highway Patrol (CHP) enforcement of express lane use.
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A properly mounted toll tag is detected. An antenna detects the toll tag which beeps as you drive through. FasTrak electronically checks your account.
In California, if you go through FasTrak lane without a pass, you will receive a toll violation notice. Toll violation will include the regular toll rate plus a penalty as: First notice: $25 penalty. Second notice: $70.
Your FasTrak® transponder may not be working or have been mounted improperly. If you do not hear a beep when driving past a toll point on the road, contact customer service to get your transponder replaced or to get new mounting strips and mounting instructions.
FasTrak says many drivers may need to trade in their old toll tags for new ones. Toll tags run out of battery power over time, making it hard for some sensors to detect them.