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 142 (FIXED AND MOVEABLE WINDOWS)DIAGNOSTIC INFORMATION AND PROCEDURESPOWER WINDOWS 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 2012 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, command the driver, passenger, left rear and right rear window UP and DOWN with a scan tool, Each window should perform the UP and DOWN commands.
- If the driver and passenger windows do not perform as specified, refer to Both Front Windows Inoperative in Circuit/System Testing .
- If the driver window does not perform as specified, refer to Single Front Window Motor Inoperative in Circuit/System Testing .
- If the passenger window does not perform as specified, refer to Single Front Window Motor Inoperative in Circuit/System Testing .
- If the left rear window does not perform as specified, refer to Rear Window Inoperative in Circuit/System Testing .
- If the right rear window does not perform as specified, refer to Rear Window Inoperative in Circuit/System Testing .
- Command the driver window UP, DOWN, Express UP and Express DOWN with the driver window switch, The driver window should perform the UP, DOWN, Express UP and Express DOWN commands.
- If the driver window does perform as specified, refer to Driver Window Malfunction in Circuit/System Testing .
- Observe the scan tool Left Rear Main Control Down Switch, Left Rear Main Control Express Switch, Left Rear Main Control Up Switch, Right Rear Main Control Down Switch, Right Rear Main Control Express Switch, Right Rear Main Control Up Switch, Front Passenger Main Control Down Switch, Front Passenger Main Control Express Switch, and the Front Passenger Main Control Up Switch parameters while using the appropriate switches on the driver window switch. The values should change from Inactive to Active for each switch used.
- If any of the values are always Inactive or always Active, refer to Driver Switches Malfunction Circuit/System Testing .
- Command the passenger window UP, DOWN, Express UP and Express DOWN with the passenger window switch, The passenger window should perform the UP, DOWN, Express UP and Express DOWN commands.
- If the passenger window does perform as specified, refer to Passenger Window Malfunction in Circuit/System Testing .
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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.