TRAFFIC INFORMATION COMMUNICATION DEVICE

摘要

PURPOSE: To receive provided traffic information by using a password to be changed into even in case of a failure to change the password. CONSTITUTION: When the password is changed, the traffic information communication device 10 stores two passwords before and after the change in a nonvolatile memory 15 and if use is not allowed by an information provider 1 although one of the stored passwords is sent, the other stored password is sent.