Maintenance Required Light not disappearing in my Honda Accord Hybrid 2005 even after resetting many times?

I've a Honda Accord 2005 Hybrid and I got a "Maintenance Required" blinking for about 15 seconds everytime I started the car. I did an oil change from a mechanic shop and later I observed that the light still appeared. So I checked online and found how I should reset it



But even after I did that for 5 times,it still appears. I showed the issue to the Walmart Mechanics and they said that since the light doesnt stay after 15 or 20 seconds,it doesnt matter.

Should I take his advice or should I show it to another mechanic?
Added (1). JetDoc- I do get all these lights flashing when the key is at number 2 position when the battery is On and engine is still at off… When we start the engine, then all these lights do disappear but this "maint rqd" light alone keeps blinking for upto 15 seconds… While other lights are shut off

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