My 2005 Lexus Es330 is due for Maintenance which cost a ton at the dealerships, so I will get it done at a local store.

How do IRESET the "MAINTENANCE REQUIRED" signfromthedashboard?

 

I want to know this too. Anyone?

 

I just found and instruction for a camry and it worked on my camry. I also have a 2000 ES300, which should work too since it's look/work the same. It's up to you if you want to try it or not.
1- Stick the key in and turn to ON position.
2- click the odometer/trip meter reset pin to odometer and make sure you can see the odometer (the actual miledge of your car, not the trip meters).
3- Turn key to off position
4- press and hold the odometer reset pin
5- turn key to ON position, still hold in the odometer reset pin.
You will see the degits on the meter became "--------". Each dash will be blinking and disappeared one by one untill all are done.
6- turn off the key and try to start your car. You should see the maintenant req light went away.