A d d i t i o n a l s a f e t y i n f o r m a t i o n75antiskid (antilock) braking systems, electronic speed control systems, and air bagsystems. For more information, check with the manufacturer or its representativeof your vehicle or any equipment that has been added.Only qualified personnel should service the device, or install the device in a vehicle.Faulty installation or service may be dangerous and may invalidate any warrantythat may apply to the device. Check regularly that all wireless device equipment inyour vehicle is mounted and operating properly. Do not store or carry flammableliquids, gases, or explosive materials in the same compartment as the device, itsparts, or enhancements. For vehicles equipped with an air bag, remember that airbags inflate with great force. Do not place objects, including installed or portablewireless equipment in the area over the air bag or in the air bag deployment area. Ifin-vehicle wireless equipment is improperly installed and the air bag inflates,serious injury could result.Using your device while flying in aircraft is prohibited. Switch off your devicebefore boarding an aircraft. The use of wireless teledevices in an aircraft may bedangerous to the operation of the aircraft, disrupt the wireless telephone network,and may be illegal.■ Potentially explosive environmentsSwitch off your device in any area with a potentially explosive atmosphere. Obeyall posted instructions. Sparks in such areas could cause an explosion or fireresulting in bodily injury or death. Switch off the device at refuelling points such asnear gas pumps at service stations. Observe restrictions in fuel depots, storage, anddistribution areas; chemical plants; or where blasting operations are in progress.Areas with a potentially explosive atmosphere are often, but not always, clearlymarked. They include areas where you would be advised to turn off your vehicleengine, below deck on boats, chemical transfer or storage facilities and where theair contains chemicals or particles such as grain, dust, or metal powders. Youshould check with the manufacturers of vehicles using liquefied petroleum gas