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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 77 (SUNROOF SYSTEM)DIAGNOSTIC 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
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B3664 | B3664 02: Sunroof Position Select Switch High Signal Circuit Short to Ground B3664 05: Sunroof Position Select Switch High Signal Circuit High Voltage/Open B3664 59: Sunroof Position Select Switch High Signal Circuit Protection Time-Out |
| DTC B3697 | B3697 00: Sunroof Actuator Malfunction B3697 39: Sunroof Actuator Internal Malfunction B3697 42: Sunroof Actuator Calibration Not Programmed B3697 4B: Sunroof Actuator Calibration Not Learned |
| DTC B369C | B369C 02: Sunroof Ventilation Position Select Switch Circuit Short to Ground B369C 05: Sunroof Ventilation Position Select Switch Circuit High Voltage/Open B369C 59: Sunroof Ventilation Position Select Switch Circuit Protection Time-Out |
RENDER: 1.0x
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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.