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 MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXPOWER DOOR LOCK SYSTEM AND RELEASE SYSTEMS - DIAGNOSTIC TROUBLE CODES
2013 Buick Regal Turbo Premium, Standard Trans
Power Door Lock System And Release Systems - Diagnostic Trouble Codes
2013 Buick Regal Turbo Premium, Standard TransSECTION Power Door Lock System And Release Systems - Diagnostic Trouble Codes
| DTC | Description |
|---|---|
| DTC B1474 or B3849 | DTC B1474 02 Passenger Exterior Door Handle Switch Circuit Short to Ground DTC B3849 02 Driver Exterior Door Handle Switch Circuit Short to Ground |
| DTC B1534 or B1535 | DTC B1534 02 Left Rear Door Handle Switch Circuit Short to Ground DTC B1535 02 Right Rear Door Handle Switch Circuit Short to Ground |
| DTC B297B or B297C | DTC B297B 5A Driver Door Open Switch Circuit Not Plausible DTC B297C 5A Passenger Door Open Switch Circuit Not Plausible |
| DTC B3125, B3130, or B3135 | DTC B3125 01 Driver Door Only Unlock Circuit Short to Battery DTC B3125 02 Driver Door Only Unlock Circuit Short to Ground DTC B3130 01 All Doors Unlock Circuit Short to Battery DTC B3130 02 All Doors Unlock Circuit Short to Ground DTC B3135 01 All Doors Lock Circuit Short to Battery DTC B3135 02 All Doors Lock Circuit Short to Ground |
| DTC B3140 or B3150 | DTC B3140 00 Driver Door Unlock Switch Circuit DTC B3150 00 Left Front Door Lock Switch Circuit |
| DTC B3265 | DTC B3265 02 Trunk Lid Unlatch Output Circuit Short to Ground |
| DTC B3618 | DTC B3618 00 Exterior Liftgate Unlatch Switch Circuit Malfunction |
| DTC B3930 | DTC B3930 02 Child Security Lock Motors Circuit Short to Ground |
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.