CAUTIONS:
If you use the socket when the engine is not running, the battery may discharge.
Do not hold the cigar lighter element pressed in.
Note: You can use the socket to power 12 volt appliances that have a maximum current rating of 15 Amperes. Use only Ford accessory connectors or connectors specified for use with SAE standard sockets.

Press the element in to use the cigar lighter. It will pop out automatically.
Instrument lighting dimmer
AshtrayFord Focus Fuel Tank and Lines - Description and Operation
The fuel system consists of:
a Mechanical Returnless Fuel System (MRFS) .
a standard fuel tank.
fuel, vapor and brake tubes in an integrated bundle assembly attached to
the underside of the vehicle by retaining clips.
a lifetime fuel filter (serviced as part of the Fuel Pump (FP) mo ...
Nissan Frontier - Instrument Panel - Keys - Brake system