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 MANUALSCHEVROLET2025TAHOE PPV, 4WDREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSKEYLESS ENTRY SYSTEM AND REMOTE FUNCTIONSDIAGNOSTIC INFORMATION AND PROCEDURESDTC B1D3CCIRCUIT/SYSTEM VERIFICATION
2025 Chevrolet Tahoe PPV, 4WD
Circuit/System Verification
2025 Chevrolet Tahoe PPV, 4WDSECTION Circuit/System Verification
DTC B1D3C 49
- Vehicle in Service Mode.
- Verify DTC B1D3C 49 is not set.
- If any of the DTCs are set
Replace the appropriate B342 UHF Low Energy Remote Control Access Sensor Transceiver.
- Go to next step: If none of the DTCs are set
- If any of the DTCs are set
- All OK
DTC B1D3C 00
- Vehicle in Service Mode.
- Verify DTC B1D3C 00 is not set.
- If any of the DTCs are set
- Program the K183 UHF Short Range Low Energy Remote Control Access Transceiver.
- Verify the DTC does not set.
- If the DTC sets, replace the appropriate B342 UHF Low Energy Remote Control Access Sensor Transceiver.
- Go to next step: If the DTC does not set
- All OK.
- Go to next step: If none of the DTCs are set
- All OK
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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.