The security light comes on and stays on while driving.
Chevrolet Q&AAsk Your Question
2003 Chevrolet Impala Question: Security light
Answer #1Bret Bodas from RepairPal Test Shop, October 15, 2009, 16:22Master
There are many reasons this light can come on, I recommend you take it in to a shop and have them check the diagnostic trouble codes that are stored in the BCM (Body Control Module). These codes will help you find what is making the security light come on.