Actions to Be Taken When Batteries Are Depleted

ACTIONS TO BE TAKEN WHEN BATTERIES ARE DEPLETED

a. Perform this procedure when the auxiliary battery is fully depleted.

HINT:
The following problems indicate that the auxiliary battery is depleted:
- No display appears on the instrument panel when the power switch's power mode is set to ON (IG).
- The hybrid system does not start.
- The headlights are dim.
- The sound from the horn is weak.

NOTE: Never use a quick charger.

1. Push the "P" position switch, and engage the parking brake.
2. Remove the key from the key slot.




3. Using a booster cable, connect the rescue vehicle's 12 V battery positive (+) lead to the stalled vehicle's relay block positive (+) terminal and the negative (-) lead to the suspension support's nut on the right side.
4. Start the engine of the rescue vehicle and run the engine at a speed slightly higher than the idling speed for 5 minutes to charge the auxiliary battery of the stalled vehicle.
5. Depress the brake pedal and push the power switch to start the hybrid system.




If the hybrid system fails to start and the master lamp turns ON, the HV battery may be depleted.

6. Disconnect the booster cable in the reverse order of the connection procedure.

NOTE: If the auxiliary battery needs to be replaced, replace it only with a 12 V battery specially designed for use with the PRIUS.

b. Perform this procedure when the HV battery is depleted.

NOTE: Leaving the vehicle untouched for 2 to 3 months may deplete the HV battery. If the battery is fully depleted, replace the HV battery.