To eliminate the maintenance light on a 1.2T Corolla, you need to follow these steps: first, start the engine by pressing the one-button start-stop button on the Corolla; then, switch to the short distance mileage display by pressing the reset button for the short distance mileage display. While pressing the reset button, switch the engine switch to the ON mode and hold it down until the short distance mileage display shows 000000. This will complete the elimination of the maintenance light.

The maintenance light is a reminder function set by the car manufacturer to remind the owner to perform maintenance at a certain mileage or time. After the maintenance is completed, the reminder needs to be reset to zero, or the information will still be displayed even if the vehicle has been serviced. It is important to follow the maintenance schedule in the car's user manual.

The method for determining the time for maintenance is as follows: when the maintenance light is lit for a long time, the owner should go to the 4S store to have the car serviced. The maintenance time for different companies' models may be different, so it is important to follow the maintenance schedule in the car's user manual. After the maintenance is completed, the owner needs to reset the maintenance light to zero, otherwise the light will remain lit even after the vehicle has been serviced.