First drive cycle

The first time a leak is detected, a TIGHTEN FUEL CAP (multi-information display model) (CHECK FUEL CAP (odometer/outside temperature display model)) message appears in the gauge display (A). To scroll to another message, press the select/reset button. The TIGHTEN FUEL CAP/CHECK FUEL CAP message appears 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 clicks at least once.

Multi-information display model 

Fig 1: Identifying Multi-Information Display Model

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Odometer/outside temperature display model 

Fig 2: Identifying Odometer/Outside Temperature Display Model

Courtesy of AMERICAN HONDA MOTOR CO., INC.

To make the message go off (with the HDS): 

1. Tighten the fuel fill cap until it clicks.
2. Clear the Pending DTC with the HDS.
3. Verify there is no leak by doing the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.

To make the message go off (without the HDS): 

1. Tighten the fuel fill cap until it clicks.
2. Start the engine, then turn the ignition switch to LOCK (0).
3. Repeat step  2 two more times.