Toyota 2014 Sienna Manual page 122

1-3. Adjustable components (seats, mirrors, steering wheel)
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Recalling the memorized position
Check that the shift lever is in P.
STEP 1
Vehicles without a smart key system
Turn the engine switch to the "ON" position.
Vehicles with a smart key system
Turn the "ENGINE START STOP" switch to IGNITION ON
mode.
STEP 2
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SIENNA_OM_OM45483U_(U)
Press button "1" or "2" to recall
the desired position.