Disassembly
1. REMOVE RADIATOR WATER INLET

(a) Remove the 2 bolts and radiator water inlet.
2. REMOVE DRAIN PLUG
(a) Remove the drain plug and air drain plug.
(b) Remove the 2 O-rings.
3. REMOVE LOWER RADIATOR TANK

(a) Install the claw to the overhaul handle, inserting it in the hole in Part A as shown in the illustration.
SST 09230-01010 (09231-01010, 09231-01030) (b) While squeezing the handle, adjust the stopper bolt so that dimension B is as specified below.
Dimension B: 0.2 to 0.3 mm (0.008 to 0.012 in.)
NOTICE: If the stopper bolt is not adjusted, the claw may be damaged.

(c) Using SST, uncrimp the lock plate by squeezing the handle until stopped by the stopper bolt.
SST 09230-01010

(d) Lightly tap the bracket of the radiator (or radiator hose inlet or outlet) with a soft-faced hammer and remove the tank.
(e) Remove the O-ring.
4. REMOVE UPPER RADIATOR TANK
HINT: The removal procedure for the upper radiator tank is the same as that for the lower radiator tank.
Test yourself
A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.