Buick Century 2006 Owner's Manual

To change the engine oil in a 2006 Buick Century, first, make sure the car is on a level surface and the engine is cool. Locate the oil drain plug under the engine and place an oil pan beneath it. Remove the drain plug and allow the old oil to fully drain out. Replace the drain plug and remove the oil filter using an oil filter wrench. Install a new oil filter and add new engine oil through the oil filler cap on the engine. Check the oil level with the dipstick and adjust as needed.
The 2006 Buick Century requires Dex-Cool antifreeze, which is an orange-colored coolant. Make sure to use a 50/50 mixture of Dex-Cool and distilled water to ensure optimal performance and prevent engine corrosion.
If the air conditioning system is not working, check the following: ensure the AC system is turned on and set to the desired temperature, verify that the blower motor is functioning, inspect the AC fuses and relays, and check the refrigerant level. If the problem persists, it may require professional diagnosis to check for leaks or compressor issues.
To replace the brake pads on a 2006 Buick Century, first lift the car with a jack and secure it on jack stands. Remove the wheel to access the brake caliper. Use a wrench to remove the caliper bolts and slide the caliper off the rotor. Remove the old brake pads and insert the new ones. Compress the caliper piston using a C-clamp and reattach the caliper. Reinstall the wheel and lower the car. Repeat the process for the other wheels as needed.
To reset the 'Check Engine' light, use an OBD-II scanner. Connect the scanner to the vehicle's OBD-II port located under the dashboard. Turn the ignition to the 'on' position without starting the engine. Follow the scanner's instructions to read and clear the trouble codes. Once cleared, the 'Check Engine' light should turn off. If it remains on, further diagnosis may be needed.
The recommended tire pressure for a 2006 Buick Century is 30 psi for both the front and rear tires. Ensure the tires are cold when checking the pressure for an accurate reading. Refer to the tire information label on the driver's side door jamb for confirmation.
To improve fuel efficiency in a 2006 Buick Century, regularly maintain the vehicle with timely oil changes, air filter replacements, and proper tire inflation. Drive smoothly by avoiding rapid acceleration and excessive idling. Remove unnecessary weight from the vehicle and use cruise control on highways when possible.
Common transmission issues include slipping, harsh shifting, or delayed engagement. To resolve these, check the transmission fluid level and condition. If it's low or dirty, replace it with the manufacturer's recommended fluid. If problems persist, it may indicate worn components or require a professional inspection.
To replace a headlight bulb, open the hood and locate the back of the headlight assembly. Disconnect the electrical connector from the bulb. Remove the bulb by turning it counter-clockwise. Insert the new bulb into the socket and turn it clockwise to secure it. Reconnect the electrical connector and test the headlight to ensure it's working.
The spark plugs in a 2006 Buick Century should be replaced approximately every 100,000 miles. However, if you notice poor engine performance, difficulty starting, or increased fuel consumption, consider checking and possibly replacing them sooner.