Potentially Explosive Atmosphere; For Vehicles Equipped With An Air Bag - LG Nexus 4 Guide De Démarrage Rapide

potentially Explosive atmosphere

turn your phone oFF when in any area with a potentially explosive
atmosphere and obey all signs and instructions. sparks in such
areas could cause an explosion or fire resulting in bodily injury or
even death.
areas with a potentially explosive atmosphere are often, but not
always, marked clearly. Potential areas may include: fueling areas
(such as gasoline stations); below deck on boats; fuel or chemical
transfer or storage facilities; vehicles using liquefied petroleum
gas (such as propane or butane); areas where the air contains
chemicals or particles (such as grain, dust, or metal powders); and
any other area where you would normally be advised to turn off
your vehicle engine.

For Vehicles Equipped with an air Bag

An air bag inflates with great force. DO NOT place objects,
including either installed or portable wireless equipment, in the
area over the air bag or in the air bag deployment area. if in-vehicle
wireless equipment is improperly installed and the air bag inflates,
serious injury could result.
 Nexus 4 quick start guide