What do I do – my check engine light came on?
Your check engine light comes on when either your engine control computer or power train computer has detected a problem in one or more of its systems.
If the vehicle is demonstrating normal operation MOST of the time it is okay to drive the vehicle home or to a service station. But should be looked at asap to determine if it is a problem that could lead to major repairs needed.
If the vehicle is NOT driving normally or running rough, it is safest to limit the use of the vehicle until a qualified mechanic can verify that it is or is not safe to drive.