2004 Lexus GX 470 Owners Manual - Page 552
2004 Lexus GX 470 Manual
Page 552 highlights
IN CASE OF AN EMERGENCY Lexus Link transceiver antenna Use only the supplied or an approved antenna. Unauthorized antennas, modifications, or attachments could damage the Lexus Link System and may violate FCC regulations. CAUTION Persons who use a medical appliance like a pacemaker should not touch or come in close contact with the antenna while the vehicle is ignition on. Otherwise, the analog cellular signals may produce improper operation of a medical appliance. The Lexus Link transceiver antenna is removable. Before taking the vehicle to an automatic car wash, disconnect the antenna by unscrewing it from the roof mount. When you remove the antenna, make sure the ignition is turned off. NOTICE D Do not contact with the antenna, this may affect quality of transceiver's operation and may cause the unit to operate at a higher power level than needed. D If you forget reattaching the Lexus Link transceiver antenna, the Lexus Link System may not function properly. D To prevent damage to the antenna, make sure it is removed before driving your vehicle through an automatic car wash. 529