How to Turn Off (Reset) the "MAINT REQD" Light - Toyota Sienna, Corolla, etc.

Turning Off "MAINT REQD" Light Toyota Sienna, Corolla, etc. - The MAINT REQD light goes on (first blinking, then persistent) to indicate it's time to change the engine oil. However, after changing the engine oil, the light stays on. I thought the act of changing the oil was enough to reset the warning, but not so.

After some investigation at ToyotaNation.com, I discovered the answer...

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