How do I turn off the ''Maintenance Required'' dash display on my '07 Lexus RX350

try an obd reader you can get it at autozone which you can turn it off
it cost from 70 to 200

Press the trip a/b button(to the left of the steering wheel on the dash) until it gets to the odometer. Hold it. turn the car off and then on.

it is a newer car which means you still have the owners maual, go to the back of the book in the index and look up maint light.
if l catch the fish for you, you will eat once, if l teach you how to fish you will eat forever

The cost of the obd reader at autozone is a deposit only( around 160.00). You get the money back when you turn in the unharmed reader. l guess some states might be different. We have done this several times. In some cars if you toltally unhook the battery(pos+neg) for an hour all codes will reset. l have a 97 Volvo and everything reset ecept for the dag on service light,but obd reader should fix the problem if unhooking battery don't.