Why is My Vehicle’s Glow Plug Light Flashing?
A steady glow plug light is a normal part of the pre-heating process on most modern diesel equipment, but a flashing light is a clear warning of a fault. However, not all off-road machines have this indicator; its presence depends on the engine’s age and electronic systems. This guide will help you understand why this light exists, decode what a flashing symbol means, identify the common causes from a failed glow plug to complex engine issues, and provide the knowledge you need to prevent costly downtime.












