Resetting the maintenance light on a 2008 Toyota Tundra is an easy task and you can do it in just a few minutes. Here are the steps:
1. Turn the ignition key to the ON position without starting the engine.
2. Press the odometer reset button on the instrument cluster. The odometer should display "TRIP A".
3. Press and hold the odometer reset button until you see the maintenance light start to flash.
4. Release the odometer reset button and turn the ignition key to the OFF position.
5. Start the engine and check to make sure that the maintenance light is off.
If the maintenance light does not turn off, you may need to take your vehicle to a Toyota dealer for service.