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.
DTC B1571: Manual (SOS) Switch Green Indicator Malfunction: Description
This DTC is set when the DCM (Telematics Transceiver) detects an open or short in the manual (SOS) switch green indicator circuit of the manual (SOS) switch. The manual (SOS) switch green indicator illuminates after the power switch is turned on (IG).
If the Safety Connect system is not active, the manual (SOS) switch green indicator will turn off.
If the Safety Connect system is active, the manual (SOS) switch green indicator will blink while communicating with call center.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B1571 | Current for manual (SOS) switch green indicator reaches malfunction criteria for 10 seconds when power switch is on (IG). |
|
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.