TOYOTA SIENNA 2018 (in English) Service Manual

412. Maintenance
SIENNA_AAS_OM08023U_(U)
2
Maintenance
■If the wireless remote control battery is discharged
The wireless remote control will not function properly.
■ Use a CR2032 lithium battery
●Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the
Toyota dealer.
● Dispose of used batteries according to the local laws.
WARNING
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
● Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other components inside the wireless remote
control.
● Do not bend either of the battery terminals.
● Take care not to lose the film and the other parts.
● Be careful not to adhere dust or oils to the inside of the module.
● Do not modify the battery case.

422. Maintenance
SIENNA_AAS_OM08023U_(U)

43
SIENNA_AAS_OM08023U_(U)
When trouble arises3
3. When you think a malfunction has occurred
AUTO ACCESS SEAT ........ 44
If the AUTO ACCESS SEAT does not move while
outside the vehicle ............ 47
Wireless remote control ...... 59

443. When you think a malfunction has occurred
SIENNA_AAS_OM08023U_(U)
AUTO ACCESS SEAT
→P. 4 7
→ P. 5 9
If you suspect that the AUTO ACCESS SEAT is malfunctioning,
try the correction procedures listed in the table below.
If the seat still does not operate even after trying the procedures,
it is likely that the seat is malfunctioning. Do not use the AUTO
ACCESS SEAT, and have the seat inspected by your Toyota
dealer immediately.
If the AUTO ACCESS SEAT does not move after being moved
outside the vehicle
If you think the wireless remo te control is malfunctioning
If the AUTO ACCESS SEAT does not move
ReasonCorrection procedure
The seat belt of the AUTO
ACCESS SEAT is buckled.Unbuckle the seat belt and try operating
the AUTO ACCESS SEAT again.
The right-hand sliding door is
not opened fully.Open the right-hand sliding door fully.
The shift lever is in a position
other than P.Shift the shift lever to P.

453. When you think a malfunction has occurred
SIENNA_AAS_OM08023U_(U)
3
When trouble arises
ReasonCorrection procedure
The engine is not running.
Start the engine.
If the AUTO ACCESS SEAT is operated
while the engine is stopped and the vehi-
cle battery is low, the AUTO ACCESS
SEAT may stop during operation.
The switch is being pressed
repeatedly.Push and hold the switch.
The fuse has blown.Check if the fuse has blown and replace
it as necessary.
The vehicle battery has been
removed while the AUTO
ACCESS SEAT was operating.
Reconnect the battery and refer to P. 47.
If the right-hand sliding door will not close and the beep sounds
twice
ReasonCorrection procedure
The AUTO ACCESS SEAT has
not been locked in place after
being stowed.
Press and hold the seat raise switch on
the wireless remote control or the raise
side of the seat raise/lower switch, and
confirm that the AUTO ACCESS SEAT
stops automatically and the beep sounds
once. Then, try closing the sliding door
again.

463. When you think a malfunction has occurred
SIENNA_AAS_OM08023U_(U)
If the AUTO ACCESS SEAT retreats a little and then stops
ReasonCorrection procedure
The AUTO ACCESS SEAT has
hit an obstacle, or operation
has been otherwise obstructed.Remove the obstacle and try operating
the AUTO ACCESS SEAT again.
If the shift lever cannot be moved from P
ReasonCorrection procedure
The AUTO ACCESS SEAT has
not been locked in place after
being stowed.
Press and hold the seat raise switch on
the wireless remote control or the raise
side of the seat raise/lower switch, and
confirm that the AUTO ACCESS SEAT
stops automatically and the beep sounds
once. Then, try shifting the shift lever
again.
If the seat position or the seatback angle of the AUTO ACCESS
SEAT cannot be adjusted
ReasonCorrection procedure
An attempt has been made to
adjust the AUTO ACCESS
SEAT while it is raising, lower-
ing or rotating, or while it is out-
side the vehicle.Press and hold the seat raise switch on
the wireless remote control or the raise
side of the seat raise/lower switch, and
confirm that the AUTO ACCESS SEAT
stops automatically and the beep sounds
once. Then, try adjusting the seat again.

473. When you think a malfunction has occurred
SIENNA_AAS_OM08023U_(U)
3
When trouble arises
If the AUTO ACCESS SEAT does not move
while outside the vehicle
If the AUTO ACCESS SEAT stops moving while raising, lowering or
rotating, or while it is outside the vehicle, you will not be able to close
the right-hand sliding door. Use the techniques outlined here to stow
the seat inside the vehicle. If t he AUTO ACCESS SEAT is occupied,
move the occupant to a safe plac e before conducting the operation.
If the AUTO ACCESS SEAT does no t move, first initialize the seat
position information.
Shift the shift lever to P.
Open the right-hand sliding door fully.
Unbuckle the seat belt if it is buckled.
If the AUTO ACCESS SEAT does not move even when the
switches are pressed, check and replace the fuses as necessary.
(→ P. 38)
If the AUTO ACCESS SEAT still does not move even after the
fuses have been checked and replaced, have the seat inspected
by your Toyota dealer.
Initializing the seat position information
1
2
3

483. When you think a malfunction has occurred
SIENNA_AAS_OM08023U_(U)
Press and hold the seat posi-
tion adjustment switch on the
right-hand side of the seat in
either the front or back direction
and, at the same time as press
and hold the seat raise/lower
switch in either the raise or
lower direction for approxi-
mately 10 seconds, until the
beep sounds.
Seat position adjustment
switch
Seat raise/lower switch
Within 10 seconds after the beep from step has sounded (until
the next beep starts to sound), press the seat position adjustment
switch ( ) either forward or back 4 times, and then press the raise
or lower side of the seat raise/lower switch ( ) 4 times.
The beep sounds twice when initialization of the seat position information
has been completed. Conduct the procedures explained in the following “\
If
the AUTO ACCESS SEAT moves when a switch is pressed” section.
4
1
2
54
1
2

493. When you think a malfunction has occurred
SIENNA_AAS_OM08023U_(U)
3
When trouble arises
●Initialize the seat position info rmation before conducting the opera-
tions listed here.
● The movements of the seat while conducting these operations will
be different from normal.
● If the seat resets while the oper ations from step to step are
being carried out, a long beep will sound, and the seat’s move-
ments will return to normal.
Adjust the head restraint to the downmost position. ( →P. 1 0 )
Fold the footrest up. ( →P. 1 3 )
Fold the front pas senger seatback. ( →P. 2 1 )
Press and hold the raise side of
the seat raise/lower switch
while the AUTO ACCESS
SEAT raises, a short beep
sounds, the seat slides further
into the vehicle and a short
beep sounds again.
If the AUTO ACCESS SEAT moves when a switch is pressed
49
1
2
3
4

503. When you think a malfunction has occurred
SIENNA_AAS_OM08023U_(U)
Press the rear side of the seat
position adjustment switch on
the right-hand side of the seat,
and slide the AUTO ACCESS
SEAT toward the rear of the
vehicle by 2 in. (5 cm).
If the rear side of the seat position
adjustment switch is pressed and
held while the lower side of the
seat raise/lower switch is being
pressed, the AUTO ACCESS
SEAT will slide towards the front of
the vehicle.
Press the forward side of the
seat position adjustment switch
on the right-hand side of the
seat, and rotate the AUTO
ACCESS SEAT toward the
inside of the vehicle until the
beep sounds.
If the forward side of the seat posi-
tion adjustment switch is pressed
and held while the lower side of the
seat raise/lower switch is being
pressed, the AUTO ACCESS
SEAT will rotate to the outside of
the vehicle.
5
6