Toyota Sienna 2010-2026 Owners Manual: Adjustment procedure
- Manual seat
- Seat position adjustment lever
- Seatback angle adjustment lever
- Vertical height adjustment lever (driver’s side only) Lumbar support adjustment switch (driver’s side only)*
*: If equipped
- Power seat
- Seat position adjustment switch
- Seatback angle adjustment switch
- Seat cushion (front) angle adjustment switch (driver’s side only)
- Vertical height adjustment switch (driver’s side only)
- Lumbar support adjustment switch (driver’s side only)
Front seats
...
Active head restraints
When the occupant’s lower back
presses against the seatback during
a rear-end collision, the head
restraint moves slightly forward
and upward to help reduce the
risk of whiplash on the seat ...
Other materials:
Perform signal check
HINT:
When entering signal check mode, the tire pressure
warning ECU sets all the signal check DTCs first.
After completing signal check for each inspection
item, the DTCs for systems that are determined to be
normal by the tire pressure warning ECU will be
erased.
The DTCs f ...
Inspection
1. INSPECT POWER STEERING RACK
(a) Using a dial indicator, check the power steering rack
for runout and for teeth wear and damage.
Maximum runout:
0.3 mm (0.012 in.)
If necessary, replace the rack & pinion power
steering gear assembly.
(b) Check the back surface for wear and damag ...
Park / Neutral Position Switch Circuit
DESCRIPTION
The fold seat control ECU receives signals from the Park/Neutral position
switch and controls the seat
stowing and return operations. If the shift lever is in any position other than
P the seat cannot be operated.
If the ignition switch is in ACC or IG the seat cannot be operate ...
