1. DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM
SST 07110-58060 (07117-58080, 07117-58090, 07117-78050, 07117-88060, 07117-88070, 07117-88080)
HINT: See page AC-172.
2. REMOVE REAR DOOR SCUFF PLATE RH (See page IR-7)
3. REMOVE BACK DOOR SCUFF PLATE (See page IR- 8)
4. REMOVE QUARTER TRIM PANEL ASSEMBLY FRONT RH (See page IR-9)
5. REMOVE ROOF HEADLINING GARNISH REAR (See page IR-9)
6. REMOVE RR WINDOW SIDE GARNISH ASSEMBLY NO.2 RH (See page IR-9)
7. REMOVE AIR DUCT ASSEMBLY

(a) Remove the 2 clips and the air duct assembly from the air conditioning blower assembly.
8. REMOVE COVER SUB-ASSEMBLY

(a) Disengage the 2 claw fittings and remove the cover sub-assembly.
9. REMOVE AIR DUCT ASSEMBLY

(a) Remove the air duct assembly.
10. DISCONNECT HEATER HOSE

(a) Release the claw fittings and release the heater hose clamp.
(b) Using pliers, grip the claws of the 2 clips and slide the clip to disconnect the 2 heater hoses.
11. DISCONNECT AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY

(a) Remove the 2 bolts and disconnect the air conditioning tube & accessory assembly.
12. REMOVE AIR CONDITIONING BLOWER ASSEMBLY

(a) Disconnect the 4 connectors, release the 3 clamps and separate the wire harness.

(b) Remove the 3 bolts and the air conditioning blower assembly.
Blower unit (for rear air conditioning system)
DisassemblyFor vehicles equipped with srs airbag and seat belt pretensioner
The SIENNA is equipped with a Supplemental Restraint System (SRS).
CAUTION: Failure to carry out the service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing and lead to serious injury. Furthermore, if a mistake is made when servicing SRS, it is poss ...
Outside vehicle
General maintenance
Check the parts of the vehicle described below on a daily
basis. Performing maintenance checks on the vehicle is the
owner's responsibility. The owner may take the vehicle to a
service center but it is recommended that the owner perform
the checks.
In most cases, special ...
Driving in vehicle-to-vehicle distance control mode
This mode employs a radar sensor to detect the presence of vehicles
up to approximately 400 ft. (120 m) ahead, determines the current
vehicle-to-vehicle following distance, and operates to maintain a suitable
following distance from the vehicle ahead.
Note that vehicle-to-vehicle distance will ...