Toyota Prius 2010 Repair Manual page 122

INSPECTION PROCEDURE
CAUTION:
Wear electrically insulated gloves and pull out the service plug grip before inspection as procedures may require
disconnecting high-voltage connectors. Be sure to carry the removed service plug grip because other workers
may install it by mistake.
Do not touch the high-voltage connectors or terminals for 10 minutes after the service plug grip is removed.
NOTICE:
2010 Toyota Prius Repair Manual