Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Electronic Toll Collection System Description and Operation
The electronic toll collection system is an in vehicle communication system to remotely perform the transaction between a toll road collector and the vehicle operator. The system has a module contained within the mirror assembly. The module uses an antenna to send and receive an RF (radio frequency) signal. The RF message is sent to the toll road's toll collector system and an RF message is sent back to the vehicle telling the electronic toll collection system in the vehicle that the toll requirement has been satisfied. The electronic toll collection system informs the vehicle operator if the toll requirement has not been satisfied.
The electronic toll collection system uses bidirectional RF communication operating at 5.8 GHz.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.