How To Reset Toyota Sienna Maintenance Light. Turn the vehicle back on. Make sure the odometer is displayed, not trip a or trip b.
Finally, release the button and turn the key to the off position. Then turn the ignition to off. Here’s how to turn off the maintenance required light.
Hold trip button for at least 5 seconds until “resetting maintenance data” is complete.
First you need to turn the ignition to the on. Put your key in the ignition and turn it to position one (right before starting the car). Comes on and remains on if the distance driven exceeds 5000 miles (8000 km) after the maintenance data has been reset. Turn the ignition key to the “on” position without starting the engine if your vehicle has an ignition button, press the engine start/stop button twice without touching the brake pedal