How to Reset the Change Oil Soon Light on a 2002 Buick Century

The 2002 Buick Century has a computer system that will warn you about various problems when they occur. One of the regular maintenance requirements it monitors is the engine oil and oil filter. If your "Change Oil Soon" light stays on after you start the car, it is time to service the oil and oil filter. You should do this as soon as possible after you see the light. It does not matter if you do it yourself or have a professional do it. This is the most significant part of the process, but if you do not reset the "Change Oil Soon" light; it will not function properly. When it is not reset, it is not capable of monitoring your oil system.

Things You'll Need

• 2002 Buick Century
• Oil and oil filter properly replaced

Instructions

1. Turn the key to the "Run" position, but do not start the engine.

2. Press the gas pedal completely down and then release it. Repeat this three times within a period of five seconds.

3. If the "Change Oil Soon" light blinks, the oil monitoring system is in the process of being reset.

4. Turn the vehicle key to the "Off" position.

5. Start the engine. The "Change Oil Soon" light should come on for a few seconds (as all the monitoring lights do), but then go off. If this is the case, you have completed resetting the "Change Oil Soon" light. If the light stays on after a few moments of the car running, the system has not been reset. Repeat the steps to reset the light.

Tips & Warnings

• The monitoring system tracks the engine temperature and the number of engine revolutions, not the actual mileage. The system figures the life expectancy of the oil according to the individual driving conditions.

• It is very important to always reset the "Change Oil Soon" light, after the oil and oil filter have been replaced. You should not reset it, if this requirement has not been completed. The system will not work properly, if you do.