Toyota Prius 2010 Repair Manual page 449

(d) Install SST.
CAUTION:
Place the wheel on level ground.
(1) Connect the SST connector.
SST: 09082-00700
NOTICE:
To avoid damaging the SST connector or wire harness, do not lock the secondary lock of the twin lock. Also,
secure some slack for the SST wire harness inside the disc wheel.
2010 Toyota Prius
connector so that it hangs downward through the hub hole of the wheel.
Make sure that the wires are tight. If there is slack in the wires, the
steering pad may break loose when the airbag is deployed.
Always tie down the steering pad with the airbag deployment side
facing upward.
NOTICE:
The wheel will be damaged by the airbag deployment, so use an unneeded
wheel.
(2) Move SST at least 10 m (32.8 ft.) away from the airbag tied down to
the wheel.
Repair Manual