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.
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HOMESERVICE MANUALSTOYOTA20254RUNNER SR5, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDTC INDEX (2 OF 2)THEFT DETERRENT / KEYLESS ENTRY DTCSDIGITAL KEY SYSTEM
2025 Toyota 4Runner SR5, RWD
Digital Key System
2025 Toyota 4Runner SR5, RWDSECTION Digital Key System
DIGITAL KEY SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| B27C0-57 | Digital Key System Invalid/Incompatible Software Component |
| B27C0-87 | Digital Key System Missing Message |
| B27C3-87 | Driver Side BLE Antenna Missing Message |
| B27C4-87 | Front Passenger Side BLE Antenna Missing Message |
| B27C5-87 | Outside Luggage Compartment (Back Door) BLE Antenna Missing Message |
| B27C6-87 | Front Floor BLE Antenna Missing Message |
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.