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Mercury Guardian Mode Explained: What It Means and What To Do
Mercury Guardian Mode Explained
If your Mercury outboard suddenly loses power, will not accelerate, or begins sounding an alarm, your engine may have entered Guardian Mode.
Guardian Mode is Mercury's built-in engine protection system. It is designed to help prevent serious damage by reducing engine performance when certain problems are detected.
While it can be frustrating, Guardian Mode is actually doing its job by helping protect your engine.
What Is Guardian Mode?
Guardian Mode monitors vario
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Jun 24th 2026