Buick Regal 2000 Owner's Manual

To reset the "Check Engine" light, disconnect the battery for about 15 minutes. Reconnect it and start the engine to see if the light has turned off.
The recommended oil type for a Buick Regal 2000 is 5W-30 for optimal performance.
To replace the air filter, open the hood, locate the air filter box, unclip or unscrew the cover, remove the old filter, and insert the new one. Ensure the cover is secured properly after replacement.
The recommended tire pressure for a Buick Regal 2000 is typically 30-32 PSI for both front and rear tires. Check the driver's side door jamb for the exact specifications.
First, check the fuse related to the power windows. If the fuse is intact, investigate the window switch and motor for faults. A multimeter can be used to verify electrical connections.
A rough idle can be caused by a dirty air filter, faulty spark plugs, or a malfunctioning idle air control valve. Inspect these components and replace or clean as necessary.
Insert the ignition key, turn it to the 'On' position without starting the engine. Press and hold the 'Unlock' button on the driver’s door while inserting and removing the key twice. Release the button, then press both 'Unlock' and 'Lock' on the fob simultaneously.
Signs of a failing alternator include dimming headlights, electrical issues, a dead battery, and a growling noise. A voltmeter can be used to test the alternator's output.
To replace the brake pads, lift the vehicle, remove the wheel, unbolt the caliper, remove the old pads, compress the caliper piston, insert new pads, and reassemble. Ensure all bolts are torqued to specification.
Check for clogged drainage tubes and clean them with compressed air. Inspect the sunroof seal for damage and replace if necessary to stop the leak.