Aoa Members . I hv Mitsubishi ek wagon 2018/2021 model . Here is sign in speedometer which i required your guidance and expert opinion as i dnt know about this sign.
If it's the spanner it is a reminder to get oil changed. It's set on a timer, doesn't mean anything. It'll show up even if you have changed the oil.
Search how to reset it.
Yes you are absolutely correct
For your resetting question, have a look at it,
an spanner in cluster display means you shall connect a scanner and scan the vehicle. Do not reset desi way by removing battery terminals.