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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSFIXED AND MOVEABLE WINDOW SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESPOWER WINDOWS MALFUNCTIONCOMPONENT TESTING
2013 Buick Regal Turbo Premium, Standard Trans
Component Testing
2013 Buick Regal Turbo Premium, Standard TransSECTION Component Testing
Rear Window Motor
- Ignition OFF, disconnect the harness connector at the appropriate rear M74 Window Motor.
- Install a 25 A fused jumper wire between one of the control terminals and 12 V. Momentarily install a jumper wire between the other control terminal and ground. Reverse the jumper wires at least two times, the rear M74 Window Motor should perform the UP and DOWN functions.
- If the M74 Window Motor does not perform the UP and DOWN functions
Replace the rear M74 Window Motor.
- If the M74 Window Motor performs the UP and DOWN functions
- If the M74 Window Motor does not perform the UP and DOWN functions
- All OK
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.