How do you reset engine check light on 2004 Subaru Outback?

Even with the VDC light on it shouldn't fishtail. Unless you have a lead foot or the tires are bald. Best to have the codes read. Could just be a bad wheel sensor.

The clue is the Check Engine Light (CEL). Get the ECU read for the error code(s). The Cruise light turns on when the ECU detect any error.

It may be as simple as a gas cap that is not tight enough.

First thing to do is have the computer scanned for trouble codes.

P0420 Usually indicates a bad catalytic converter or a bad oxygen sensor. Since you car is 2008 my money is on the oxygen sensor. Or it could be something as simple as an exhaust leak. The cruise control will keep flashing until you get the CEL fixed

You have to hook an OBD 2 scan tool up to the data link connector and check to see what code is present. If you have a knock sensor code, you need to replace the knock sensor. If you get a P0420: Catalyst system efficiency below threshold, you will need to replace your catalytic converter. But if it is nothing important, the only way to clear a check engine light is with a scan tool. You can usually go to any aftermarket parts store and they will check and clear you codes and light for free. I hope this info helps.

the check engine light, could mean just about anything. from oil level to a fuel problem or low on coolant.etc. make sure all the fluids are ok, then if the light is still on it has to be scanned with an obd2 scanner to find the problem code. if you do not have one. you can go to any auto parts store and they will scan it for free. if no code is found, you can erase check engine light with scanner.

try disconnecting the + positive terminal for a few minutes and see if it goes out most likely the 02 sensor needs replacing ...however low fluid levels may also contribute to this oil,brake fluid etc.

Sometimes a bad engine temp sensor (not the coolant gauge sender) will cause the ECU to stay in 'choke' mode.

car threw a CEL at me with ER 55 and blinking cruse. the error code went away after a 5-6 restarts,dont worry it´s not a serious proplem.

run the fault codes to find the suspect sensor