Toyota PRIUS ALPHA 2012 Quick Reference Manual page 60

NOTICE
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Hybrid battery (traction battery) air vent
●
Do not put foreign objects near the air vent. The hybrid battery (traction
battery) may overheat and be damaged.
●
Clean the air vent regularly to prevent the hybrid battery (traction battery)
from overheating.
●
Do not wet or allow foreign substances to enter the air vent as this may
cause a short circuit and damage the hybrid battery (traction battery).
●
Do not carry large amounts of water such as water cooler bottles in the
vehicle. If water spills onto the hybrid battery (traction battery), the battery
may be damaged. Have the vehicle inspected by your Toyota dealer.
1-1. Hybrid system
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