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.
Safety Connect System (Except Plug-In) (Diagnostic Codes & Symptom Tests)
2012 Toyota Prius ThreeSECTION Safety Connect System (Except Plug-In) (Diagnostic Codes & Symptom Tests)
- Safety Connect System
- DTC B1570: Manual (SOS) Switch Red Indicator Malfunction
- DTC B1571: Manual (SOS) Switch Green Indicator Malfunction
- DTC B1572: Telephone Microphone Error
- DTC B1573: Short in Telephone Antenna Circuit; DTC B15CB: Telematics Transceiver Antenna Disconnected
- DTC B1583: GPS Signal Unreceived
- DTC B15A8: Telematics Transceiver Malfunction
- DTC B15C0: Short in GPS Antenna; DTC B15C1: Open in GPS Antenna
- DTC B15C4: Airbag Signal Malfunction/Not Input
- DTC B15C5: Manual Button Malfunction
- DTC B15CC: Backup Battery Failure
- DTC B15EC: Backup Battery Degradation
- Symptom Tests
RENDER: 1.0x
NO RELATED
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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.