Honda 2010 Ridgeline Owner's Manual page 254

Service Station Procedures
5. Screw the fuel fill cap back on
until it clicks at least once.
On models without navigation system
If you do not properly tighten the
cap, you will see a ''CHECK FUEL
CAP'' message on the information
display (see page 81 ).
On models with navigation system
If you do not properly tighten the
cap, you will see a ''TIGHTEN
FUEL CAP'' message on the multi-
information display.
6. Push the fuel fill door closed until
it latches.
250
Tighten Fuel Cap Message
On models with navigation system
Your vehicle's on board diagnostic
system will detect a loose or missing
fuel fill cap as an evaporative system
leak. The first time a leak is detected
a ''TIGHTEN FUEL CAP'' message
appears on the multi-information
display. Turn the engine off, and
confirm the fuel fill cap is installed. If
it is, loosen it, then retighten it until
it clicks at least once. The message
should go off after several days of
2010 Ridgeline
normal driving once you tighten or
replace the fuel fill cap. To scroll to
another message, press the INFO
button. The ''TIGHTEN FUEL CAP''
message will appear each time you
restart the engine until the system
turns the message off.
If the system still detects a leak in
the vehicle's evaporative emissions
system, the malfunction indicator
lamp (MIL) comes on. If the fuel fill
cap was not already tightened, turn
the engine off, and check or
retighten the fuel fill cap until it
clicks at least once. The MIL should
go off after several days of normal
driving once the cap is tightened or
replaced. If the MIL does not go off,
have your vehicle inspected by a
dealer. For more information, see
page 375 .