What if Yunnan tax can't find the taxpayer's valid vehicle and owner information?

1. First, try to contact the taxpayer to confirm whether he has registered and updated his vehicle and owner information.

2. If you still can't find the relevant information in the tax system, you can contact the local tax department or relevant departments for help.

Finally, you can try to log in to the tax system again or wait for a while to see if the problem will solve itself.