1995 Buick Park Avenue Owner's Manual - Page 126

Change Oil Soon Light (Option) This light isactivated by the Engine Oil Life Monitor System. The system determines the condition of the engine oiland lets you know when the oil should be changed. (See"Engine Oil" in the Index). time the engine is started after that. If the CHANGE OIL SOON light is on continuously, there is a problem with the Oil Life Monitor System and service is required. After changing the engine oil, system should be the reset. This will cause the CHANGE OIL SOON light to be lit again for the bulb check period of three seconds. CHANGE OIL SOON It does this by using information about engine speed (revolutions per minute), coolanttemperature and vehicle speed. The system uses thisdata to determine how much the oil has degraded. When to change your oil depends on driving habits and conditions because these directly affect engine speed, coolant temperature and vehicle speed.Because of this, the CHANGE OIL SOON light come on as early as may 2,000 miles or less for harsh conditions. The CHANGE OIL SOON light comes on for five seconds as a bulb check each timethe ignition key is turned to theRUN position. It will stay on for 60 seconds once 90% of the oil lifehas been used and each The reset button is in the glovebox. With the ignition key in the RUN position, push the reset button. Hold it in for atleast five seconds,but not more than 60 seconds. After five seconds,the CHANGE OIL SOON light will flash four times and then go off. This indicates that the Oil Life Monitor System has been reset. 2-68