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 MANUALSBUICK2000REGAL GSREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSPOWER WINDOW SYSTEMTROUBLE SHOOTINGSYSTEM CHECK
2000 Buick Regal GS
System Check
2000 Buick Regal GSSECTION System Check
- Before beginning system check, turn ignition switch to RUN position. Ensure there is battery voltage from power window circuit breaker located in instrument panel fuse block. See COMPONENT LOCATIONS . Ensure lock-out switch on master switch assembly is in OFF position (4-door). Ensure master switch assembly ground circuit is clean and tight. See WIRING DIAGRAMS .
- Operate each window from master switch assembly to UP and DOWN positions. Each window should operate up and down quietly and smoothly through full range of travel, without sticking.
- Momentarily press left front window switch on master switch assembly to DOWN position (past first detent). Left front window should continue to open fully.
- Operate each window from each individual switch. Each window should operate quietly and smoothly through full range of travel, without sticking.
- Press lock-out switch on master switch assembly to LOCK position. Attempt to operate each window from each individual switch. Windows should not operate from each individual switch but operate from master switch assembly. If power window system does not function properly, go to PRELIMINARY INSPECTION .
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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.