GM Repair Problems? Ask GM Repair Expert Now.
Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner past midnight.
The flashing light means there is a trouble code stored. It will be one of these in this file.
Do you have a scan tool to see which code it is?
Prior to completing the mandatory rating at the top of your screen. Let me know if I have not yet provided you with ~5 STAR EXCELLENT~service. Reply and let me know in more detail what you need to be pleased with my help.
Since you have no codes stored for the electronic suspension. I will not be able to help. Opting out and removing myself from this question now. Hopefully another can help.