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 57 (SECONDARY AND CONFIGURABLE CUSTOMER CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESRADIO CONTROL MULTI-FUNCTION SWITCH MALFUNCTIONCIRCUIT/SYSTEM VERIFICATION
2013 Buick Regal Turbo Premium, Standard Trans
Circuit/System Verification
2013 Buick Regal Turbo Premium, Standard TransSECTION Circuit/System Verification
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.
- Ignition ON, cellular, entertainment and navigation (radio) ON.
- Press and/or scroll each of the buttons on the radio control switch.
- The cellular, entertainment and navigation (radio) should respond to desired function of the radio switch.
- Ignition ON, observe the DTC information with a scan tool. Verify no DTCs are set.
- If a DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
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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.