If you change your own oil or if the dealership forgot to reset your Maint Reqd maintenance reminder light you don’t need to drive all the way back to the dealer to get it reset–you can do it yourself.
How to Reset Toyota Sienna Maint Reqd Light
Step 1: Put the key in the ignition and turn it to the “On” position BUT do not start the van.
ON is one past the Accessory position and is as seen below:
Step 2: Press and release the ODO/Trip button over and over until you see ODO and the mileage of your van.
If it already says ODO then you can skip to the next step. It is located below and in-between the tachometer and speedometer on the dash:
When you push the ODO/Trip button it will cycle through: Trip A, Trip B, ODO/mileage.
Step 3: Turn the ignition to the OFF position.
Step 4: Press and hold the ODO/Trip button and keep holding it in.
Step 5: While you are still holding down the ODO/Trip button turn the ignition to the ON position.
Step 6: Continue to hold down the ODO/Trip button while the Maint Reqd light resets.
You will see the display flash through the following screens:
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Here is a video of me completing Step 6:
Now you are done and you did it yourself!