Changed my oil on my 2012 GMC Terrain and now I have a se...

Hi! My name is \*\*\*\*\* \*\*\*\*\* I will be able to assist you. I’m sorry that you’re having trouble with your vehicle. Don’t worry though, we’ll be able to figure this out. Please understand that I do not know your knowledge or capabilities so I **may** need to ask questions to find out basic information to help solve your specific problem. Sometimes I have to look up some information so it may take a moment to respond. I appreciate your patience. The system will give you an automated phone call offer to speak to one of us on the phone **. It is optional.** Some folks prefer to talk on the phone. If you don’t, please ignore it as I cannot control the offer from popping up. This light will come on when the computer sees a problem that affects the performance of the engine or transmission or the suspension and anti lock brake system. There are many problems that can fail that will trigger this. It could be a faulty sensor, wiring issue, module fault, engine malfunction, etc. To see what specifically is causing the light to come on the vehicle will need to be tested with a scan tool that connects to the vehicle. This test will provide a trouble code that describes what specific system is having the problem. If you can have the vehicle scanned and can give me the code, I will be able to tell you specifically what is wrong with it. If you do not have a scan tool then you can bring your vehicle to any auto part store and they will scan it for free and give you the trouble code. I would do this ASAP so that we can determine what the problem is and keep any other problems from happening. My goal is to earn a 5 star rating experience. If you have any further questions about this concern, please feel free to reply back to me. If I’m not online at the time, I will respond ASAP when I get back. You’re awesome! Thank you for using JustAnswer!

I will take it to Auto Zone and have it scanned. Before I changed the oil it was running well. I'm a retired aircraft mechanic as far as experience. Never encountered this changing oil?

Ok sounds good. It's most likely just coincidence.