50 3-1 Key and door Note (continued) ● A pare key can be registered for the same car. For more details, please contact BYD Auto Authorized Service Station. ■ If the smart key cannot be used to operate the doors within the normal distance, or the indicator on the key cannot be turned on or be instable: ● Check the surroundings for radio stations or radio transmitters that may interfere with the normal operation of the smart key. ● The battery power of the electronic smart key may be exhausted. Check the battery in the electronic smart key. If the battery is need for replacement, it is recommended to contact BYD Auto Authorized Service Station.
■ If the smart key is lost, it is recommended to contact BYD Auto Authorized Service Station as soon as possible, to avoid a theft or accident. ■ Do not change the transmission frequency and increase the transmission power (including the addition of the transmission frequency amplifier); do not use the external test antenna or any other transmission test antenna. ■ Do not cause harmful interference on various legal radio communication services when using the smart key; if any, must shut down its use should immediately and take measures to eliminate the interference before its re-use.
■ The micro power radio device must be used away from interference from various radio services or radiated interference from industrial, scientific and medical applications. ■ Any person implanted with pacemaker or cardiac defibrillator should be away from the test antennas of the smart access and start system, as the electromagnetic wave can affect the normal use of such devices. Any user with other electronic medical devices should also consult the manufacturer for the use information under the influence of electromagnetic wave. The electromagnetic wave will probably cause unexpected influence to the use of such medical devices.