Why Does Your Chevy Dashboard Light Show a Lock? [2026]
A lock symbol on your Chevy dashboard usually means the vehicle’s anti-theft or immobilizer system has been activated. In many cases, the warning appears because the vehicle is having trouble recognizing the key fob, detecting a security-related fault, or communicating with the ignition system. Understanding what triggers the warning can help you determine whether the issue is a simple key problem or something that requires professional diagnosis.
