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 MANUALSCHEVROLET2015SILVERADO 1500 HIGH COUNTRY, 5.3L ENG VIN C, RWD, GASREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXPOWER DOOR LOCK SYSTEM AND RELEASE SYSTEMS - DIAGNOSTIC TROUBLE CODES
2015 Chevrolet Silverado 1500 High Country, 5.3L Eng VIN C, RWD, Gas
Power Door Lock System And Release Systems - Diagnostic Trouble Codes
2015 Chevrolet Silverado 1500 High Country, 5.3L Eng VIN C, RWD, GasSECTION Power Door Lock System And Release Systems - Diagnostic Trouble Codes
POWER DOOR LOCK SYSTEM AND RELEASE SYSTEMS - DIAGNOSTIC TROUBLE CODES
| DTC | Description |
|---|---|
| DTC B2500 | Driver Exterior Unlock Switch |
| DTC B252C | Child Security Lock Switch |
| DTC B252E | Child Security Lock Switch Indicator |
| DTC B3125, B3130, or B3135 | Driver Door Only Unlock/All Doors Unlock (Standard Cab) |
| DTC B3125, B3130, or B3135 | Driver Door Only Unlock/All Doors Unlock (Extended or Crew Cab) |
| DTC B3140, B3145, B3150, or B3155 | Driver Door Only Unlock/All Doors Unlock |
| DTC B3930 | Child Security Lock Motors |
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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.