Buick Repair Questions? Ask a Mechanic for Answers ASAP
The light on means you have a code stored in the system, you will need a high end scan tool to get into this module. Once you have the codes you will have a better idea of what the problem is.
If you need more help, we can continue this conversation. If not, please rate at the top of the screen. Rating does not close out your question. Remember, in some cases it can be difficult to completely diagnose your vehicle without being there, I will try to give you the best answer I can. Remember, I do not get compensated for my time helping you unless you rate. If you feel the need to rate less than 3 stars. Please let me know why and how I can help you more. Thanks Dan