I was looking for this same answer and found it on another site and it worked. here is the answer. The system must be reset after the engine oil replacement. Reset the system by the following procedure:
1. Turn the ignition key to the "OFF" position with the odometer reading shown.
2. Turn the ignition key to the "ON" position while holding down the trip meter reset button. Hold down the button for at least 5 seconds. The odometer indicates "000000" and the light goes off.
Time for oil change
The 2007 Toyota Sienna V6 has a timing chain. It does not require maintenance.
The computer is advising you that your oil change interval is drawing near. When the light changes to a steady glow you will have passed the factory set mileage recommended for an oil change.
According to the owners manual for my 2004 Sienna, all it means is that an oil change is due. You can google how to reset the light, in case the guys in the shop forget to.
It means you've passed the 7,500 mile mark since your last oil change. Within a few more miles (maybe evn by the time you get this) the light will have gone to steady on.
The Maintenance Required Light is not the same as the Check Engine Light. The Maintenance Required Light is telling you that there is scheduled maintenance that needs to be performed. It may mean it needs an oil/filter change. To find out what needs to be done look at the maintenance schedule in your owner's manual.
The check engine light comes on when the ECU detects a problem with the emission system. The maintenance required light comes on when some maintenance is required on the vehicle such as an oil/filter change.
The Maintenance Required Light is not the same as the Check Engine Light. The Maintenance Required Light is telling you that there is scheduled maintenance that needs to be performed. It may mean it needs an oil/filter change. To find out what needs to be done look at the maintenance schedule in your owner's manual.
It normally means you need to change the oil/filter. But it can also mean other maintenance is required. Refer to your owner's manual.
needs oil change... needs oil change...
The maintenance required light just means there is regular scheduled maintenance that needs to be done. Look in your owner's manual and it will tell you exactly what needs to be done. Can be just an Oil/Filter change. This applies to the Maintenance Required light and not to the Check Engine light.
Time to change the oil/filter.