Have the engine controller checked for faults then serviced and the light turned off. Take it to the dealer.
If it is the check engine light it has nothing to do with an oil change. If it service required in th eoverhead console you press the "step" button until it says "0" miles to service. Then press and hold "reset" until it resets.
To reset the service engine soon light on a 2006 Mercury Mountaineer, you can buy a scan tool. Make sure you note down the numbers before scanning.
The 2006 Suzuki Grand-Vitara has a V6 engine.
The 2006 Jeep Grand-Cherokee has a V6 engine.
The 2006 Dodge Grand-Caravan has a V6 engine.
engine emissions not good .. get obd2 scan most probley your cat converter
If you have fixed the problem it should reset itself. If not, the light will stay on.
The 2006 Jeep Grand-Cherokee has a 3.7 L base engine size.
The 2006 Dodge Grand-Caravan has a 3.3 L base engine size.
The 2006 Suzuki Grand-Vitara has a 2.7 L base engine size.
The 2006 Dodge Grand-Caravan's engine produces 180 hp @ 5200 rpm.