Toyota Prius ZVW30 Series Dismantling Manual page 23

(4) Disconnect the cable from the auxiliary
battery negative (-) terminal.
(5) Disconnect the cable from the auxiliary
battery positive (+) terminal.
(6) Remove the 12volt auxiliary battery.
4. Remove the service plug grip.
Caution:
Wear insulated gloves for the following 3
steps.
(1) Raise the release handle of the service
plug grip as shown in the illustration
below.
(2) Remove the service plug grip.
(3) Apply insulating tape to the socket of the
service plug grip to insulate it.
5. Remove the 9 bolts and inverter terminal
cover.
HV battery
19
Service Plug Grip