Posted on 6/27/2025
It can be unsettling to see a warning light flash on your dashboard, especially when it disappears just as quickly. Whether it’s the check engine light, battery icon, or ABS alert, random illumination often leaves drivers wondering whether to worry or ignore it. While some may hope it’s just a glitch, dashboard lights usually activate for a reason. Even if they come and go, they shouldn’t be brushed off. Understanding what causes these intermittent warnings can help you stay ahead of bigger problems. Let’s take a look at why these lights may appear without warning, what systems might be affected, and what to do when it happens. The Role of Your Vehicle’s Onboard Diagnostics System Modern vehicles rely on an onboard diagnostics system (OBD-II) to monitor engine performance, emissions, and various safety systems. Sensors constantly send feedback to your car’s computer, which looks for readings outside of normal parameters. When som ... read more