Buick Century 2004 Getting To Know Your Manual
![Buick Century 2004 manual cover](/images/gdPAgHZHRHpdfniOfpHIrJtY/thumbs/thumb175x175.webp)
To reset the 'Check Engine' light, disconnect the negative battery cable for about 15 minutes. Reconnect it, and the light should be reset. If it persists, there may be an underlying issue that needs diagnosis with an OBD-II scanner.
The recommended oil type for a 2004 Buick Century is 5W-30. Ensure you use a high-quality oil that meets or exceeds API certification standards.
It is recommended to change the transmission fluid every 50,000 miles under normal driving conditions. Check the owner's manual for specific intervals based on your driving habits.
Overheating can be caused by low coolant levels, a faulty thermostat, a blocked radiator, or a failing water pump. Check these components and ensure the cooling system is functioning properly.
To replace the headlight bulb, open the hood and locate the back of the headlight assembly. Remove the power connector and twist the bulb counterclockwise to remove it. Replace with a new bulb and reassemble in reverse order.
Poor fuel economy can be caused by under-inflated tires, dirty air filters, malfunctioning sensors, or clogged fuel injectors. Regular maintenance and inspections can help identify and rectify these issues.
Start by checking the fuses and relays related to the faulty component. Inspect wiring for damage or corrosion. Use a multimeter to test voltage and continuity where necessary. If the problem persists, consult a professional technician.
Signs include squeaking or grinding noises, a spongy brake pedal, longer stopping distances, and vibration during braking. Regular inspections and timely replacement of brake components are crucial for safety.
Regularly check the refrigerant level and recharge if necessary. Ensure the condenser and evaporator are clean and free of debris. Replace the cabin air filter as needed to maintain airflow and system efficiency.
First, replace the battery in the key fob. If it still doesn't work, check for any damage to the fob itself. Reprogramming may be necessary; refer to the owner's manual or consult a dealership for assistance.