Change oil light is on, just changed oil

After repacement of the engine oil, you need to reset the indicator.

OIL LIFE INDEX RESET - PROCEDURE 2

1. An OIL LIFE INDEX is one of 4 displays on Driver Information Center (DIC). It will display remaining oil life as a percentage estimate of the useful life of oil.

2. Display will show 100 percent when the system is reset. When remaining oil life is 10 percent or less, the system will display CHANGE OIL SOON. When the oil life expires, the display will show CHANGE ENGINE OIL. After changing oil, reset oil life display.

3. To reset oil life display, press ENG DATA button until OIL LIFE INDEX appears on DIC display. Depress and hold in ENG DATA and RANGE buttons until 100 is displayed. This will reset remaining oil life to 100 percent.

This is not going to affect the engine performance and since you have other problems, you need to find out what is wrong.

Is the Malfunction Indicator Light showing when engine is running?
More information is required to understand what is wrong with your vehicle.