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Fuel Cap Warning Message: Notes

The PCM detects a loose or missing fuel fill cap as an evaporative system leak and alerts the driver by showing a warning message in the multi-information display.

First drive cycle 

The first time a leak is detected a TIGHTEN FUEL CAP message appears in the multi-information display (A). To scroll to another message, press the select/reset button. The TIGHTEN FUEL CAP message will appear each time you restart the engine until the system turns the message off. Turn the engine off then replace or tighten the fuel fill cap until it clicks at least once.

Fig 1: Identifying Multi-Information Display
G06163713Courtesy of AMERICAN HONDA MOTOR CO., INC.