A blinking tire pressure light is typically the vehicle’s way of indicating that the TPMS is not functioning correctly. Unlike a solid warning light that alerts you to low tire pressure, a blinking tire pressure light often points toward a sensor malfunction, dead battery, damaged valve stem, or a problem with the TPMS control module. Drivers may encounter the blinking light after seasonal temperature changes, wheel swaps, or when the internal battery of one or more sensors begins to fail. Because the TPMS is your first line of defense against under-inflation, maintaining its accuracy is essential for safe driving. Ignoring a blinking light can lead to unsafe handling, reduced fuel economy, and accelerated tire wear. By understanding what triggers this alert and the steps required for diagnosis, drivers can take proper action to restore reliable operation.