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 DIAGNOSISACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASOBJECT DETECTION SYSTEM - PARK ASSIST SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2013 Buick Regal Turbo Premium, Standard Trans
Diagnostic Code Index
2013 Buick Regal Turbo Premium, Standard TransSECTION Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B0954, B0955, B0956, or B0957 | DTC B0954 01 Parking Assist Front Sensor Right Corner Circuit Short to Battery DTC B0954 06 Parking Assist Front Sensor Right Corner Circuit Low Voltage/Open DTC B0954 08 Parking Assist Front Sensor Right Corner Circuit Performance - Signal Invalid DTC B0954 21 Parking Assist Front Sensor Right Corner Circuit Incorrect Period DTC B0954 3A Parking Assist Front Sensor Right Corner Circuit Incorrect Component Installed DTC B0955 01 Parking Assist Front Sensor Right Middle Circuit Short to Battery DTC B0955 06 Parking Assist Front Sensor Right Middle Circuit Low Voltage/Open DTC B0955 08 Parking Assist Front Sensor Right Middle Circuit Performance - Signal Invalid DTC B0955 21 Parking Assist Front Sensor Right Middle Circuit Incorrect Period DTC B0955 3A Parking Assist Front Sensor Right Middle Circuit Incorrect Component Installed DTC B0956 01 Parking Assist Front Sensor Left Middle Circuit Short to Battery DTC B0956 06 Parking Assist Front Sensor Left Middle Circuit Low Voltage/Open DTC B0956 08 Parking Assist Front Sensor Left Middle Circuit Performance - Signal Invalid DTC B0956 21 Parking Assist Front Sensor Left Middle Circuit Incorrect Period DTC B0956 3A Parking Assist Front Sensor Left Middle Circuit Incorrect Component Installed DTC B0957 01 Parking Assist Front Sensor Left Corner Circuit Short to Battery DTC B0957 06 Parking Assist Front Sensor Left Corner Circuit Low Voltage/Open DTC B0957 08 Parking Assist Front Sensor Left Corner Circuit Performance - Signal Invalid DTC B0957 21 Parking Assist Front Sensor Left Corner Circuit Incorrect Period DTC B0957 3A Parking Assist Front Sensor Left Corner Circuit Incorrect Component Installed |
| DTC B0958, B0959, B0960, or B0961 | DTC B0958 01 Parking Assist Rear Sensor Left Corner Circuit Short to Battery DTC B0958 06 Parking Assist Rear Sensor Left Corner Circuit Low Voltage/Open DTC B0958 08 Parking Assist Rear Sensor Left Corner Circuit Performance - Signal Invalid DTC B0958 21 Parking Assist Rear Sensor Left Corner Circuit Incorrect Period DTC B0958 3A Parking Assist Rear Sensor Left Corner Circuit Incorrect Component Installed DTC B0959 01 Parking Assist Rear Sensor Left Middle Circuit Short to Battery DTC B0959 06 Parking Assist Rear Sensor Left Middle Circuit Low Voltage/Open DTC B0959 08 Parking Assist Rear Sensor Left Middle Circuit Performance - Signal Invalid DTC B0959 21 Parking Assist Rear Sensor Left Middle Circuit Incorrect Period DTC B0959 3A Parking Assist Rear Sensor Left Middle Circuit Incorrect Component Installed DTC B0960 01 Parking Assist Rear Sensor Right Middle Circuit Short to Battery DTC B0960 06 Parking Assist Rear Sensor Right Middle Circuit Low Voltage/Open DTC B0960 08 Parking Assist Rear Sensor Right Middle Circuit Performance - Signal Invalid DTC B0960 21 Parking Assist Rear Sensor Right Middle Circuit Incorrect Period DTC B0960 3A Parking Assist Rear Sensor Right Middle Circuit Incorrect Component Installed DTC B0961 01 Parking Assist Rear Sensor Right Corner Circuit Short to Battery DTC B0961 06 Parking Assist Rear Sensor Right Corner Circuit Low Voltage/Open DTC B0961 08 Parking Assist Rear Sensor Right Corner Circuit Performance - Signal Invalid DTC B0961 21 Parking Assist Rear Sensor Right Corner Circuit Incorrect Period DTC B0961 3A Parking Assist Rear Sensor Right Corner Circuit Incorrect Component Installed |
| DTC B0967 or B0968 | DTC B0967 02 Parking Assist On/Off Switch Circuit Short to Ground DTC B0968 01 Parking Assist On/Off Switch Indicator Circuit Short to Battery DTC B0968 06 Parking Assist On/Off Switch Indicator Circuit Low Voltage/Open |
| DTC B1015 | DTC B1015 00 Vehicle Identification Number Information Malfunction |
| DTC B1405 (with rear park assist) | DTC B1405 02 Control Module Voltage Reference Output 2 Circuit Short to Ground DTC B1405 03 Control Module Voltage Reference Output 2 Circuit Low Voltage DTC B1405 07 Control Module Voltage Reference Output 2 Circuit High Voltage |
| DTC B1405 (with front and rear park assist) | DTC B1405 02 Control Module Voltage Reference Output 2 Circuit Short to Ground DTC B1405 03 Control Module Voltage Reference Output 2 Circuit Low Voltage DTC B1405 07 Control Module Voltage Reference Output 2 Circuit High Voltage |
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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.