Why does my toyota sienna flash the maintenance required light six times after an oil change?

SOURCE: Maintenance Required light came on & stayed on after oil change

I get many calls a week for this procedure...
This is really easy! Follow these directions:

Turn the key ON

Look at the odometer, and verify that it displays "ODO" and the total mileage traveled. If it is on "Trip A" or "Trip B", press the black stick next to the odometer to read "ODO", and the total miles traveled.

Turn the key OFF.

Press in, and HOLD the black trip meter reset button, hold it in.
DO not release it.

Turn the key ON

Observe the Odometer display. The total mileage traveled will disappear, and you will see 5 dashes, then 4, then 3, then 2, then 1 dash, and finally, 5 zeros. Then, the total mileage traveled will redisplay.

Release the black trip meter reset stick.

This completes the reset procedure, and it will be back on in 5,000 miles, to remind you of you next oil change.
If you do NOT see the dashes, followed by the 5 zeros, start the entire procedure again, but start with the odometer set to TRIP "A". Some vehicles use Trip A instead of the ODO.

You do NOT START the vehicle at any time during the reset procedure.
If the engine starts, the procedure will not reset.

SOURCE: oil was changed and check engine light was not reset

This is really easy! Please follow these directions:

Turn the key ON

Look at the odometer, and verify that it displays "ODO" and the total mileage traveled. If it is on "Trip A" or "Trip B", press the black stick next to the odometer to read "ODO", and the total miles traveled.

Turn the key OFF.

Press in, and HOLD the black trip meter reset button, hold it in.
DO not release it.

Turn the key ON; do NOT start the engine

Observe the Odometer display. The total mileage traveled will disappear, and you will see 5 dashes, then 4, then 3, then 2, then 1 dash, and finally, 5 zeros. Then, the total mileage traveled will redisplay.

Release the black trip meter reset stick.

This completes the reset procedure, and the light will be back on in 5,000 miles, to remind you of you next oil change.

Hope this helps, and thanks for choosing FixYa. Happy Thnkasgiving!

SOURCE: maintenance light flashing

h) Engine Oil Replacement Reminder
Light (for vehicles sold in U.S.A.)
This light reminds you when to replace
the engine oil.
This light will come on when the ignition
key is turned to “ON” and will go off after
about a few seconds.
When you drive for about 8000 km (5000
miles) after the engine oil replacement,
this light illuminates for about 3 seconds
and then flashes for about 12 seconds
with the ignition key turned to “ON” position.
If you continue driving without the
engine oil replacement, and if the driving
range exceeds 12000 km (7500 miles), the
light will come on after the ignition key is
turned to “ON” position. The light will remain
on thereafter.
If the light is flashing, we recommend that
you replace the engine oil at an early
opportunity depending on the driving and
road condition. If the light comes on, replace
it as soon as possible.
You need to reset the light after the engine
oil replacement. Reset the light by
following the procedure below:
1. Turn the ignition key to the “OFF” position
with the odometer reading shown.
(For details, see “Odometer and two
trip meters” on page 136 in this Section.)
2. Turn the ignition key to the “ON” position
while holding down the trip meter
reset button.
Hold down the button until the light goes
off. Before the light goes off, it illuminates
for 3 seconds, flashes for 2 seconds and
illuminates for 1 second.
If the system fails to reset, the light will
remain flashing.


I copied this from page 143 of the owners manual for the 2004 4Runner

SOURCE: maintenance required light is on in my 2008 Toyota Camry

You can take it back and have them reset the light that they for got to do. Or check your manual and do it your self. I think you push the trip setter and hold it until the dashes disappear. Or go to trip a and then push and hold.

SOURCE: flashing maintenance required light

NEEDS AN OIL CHANGE. YOU CAN RESET IT YOUR SELF. HOLD IN THE "TRIP" BUTTON AND TURN THE KEY ON (DO NOT START IT) 5 DASHES APPEAR AND DISAPPEAR 1 AT A TIME THEN 5 "0"'S AND YOUR DONE. SOMETIMES THEY HAVE TO BE ON "TRIP A" BEFORE YOU START