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.
Radio Data System-Traffic Message Channel (RDS-TMC)
The Radio Data System-Traffic Message Channel (RDS-TMC) is a broadcast for delivering traffic and travel information to the driver. The RDS-TMC data is typically coded using the 57 kHz ± 3 kHz subcarrier on FM broadcast.
The RDS-TMC system uses a decoder in the audio-navigation unit to decode the traffic information data. It is integrated directly into a navigation system.
The traffic information is displayed with the navigation route guidance. It is used to avoid traffic jams and accidents (see the Navigation Manual for more information).
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.