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:
How to proceed with
troubleshooting
HINT:
The intelligent tester can be used in steps 2, 3, 4, 6 and 9.
1 VEHICLE BROUGHT TO WORKSHOP
2 CONNECT INTELLIGENT TESTER TO DLC3
HINT:
If the display indicates a communication fault in the tester,
inspect the DLC3.
3 CHECK DTC AND FREEZE FRAME DATA
Check for DTC(s) and freeze frame ...
Inspection
1. INSPECT SEAT HEATER SWITCH LH
Measure the resistance of the seat heater switch
when the switch is operated.
Resistance
If the result is not as specified, replace the switch.
HINT:
As the dial is being turned, the resistance changes
gradually.
Push the seat h ...
Driving Position Memory Switch Circuit (w/ Memory)
DESCRIPTION
The seat memory switch sends signals to the outer mirror control ECU LH via
the multiplex
communication system to memorize a given seat position. This memory system does
not use a position
sensor. The seat position is detected by counting pulses that are output when
the motor tu ...
