The GS 450h has unique operating modes, so always follow the precautions below when
performing the PDS operation:
• The GS 450h contains high voltage (up to 650 volts) AC and DC Systems. All high voltage
wiring and connections are orange in color. Do not carelessly touch these orange colored
wiring harnesses and connectors.
• The hybrid system may start up and shut down suddenly whenever the “READY” light is
illuminated. Be sure to put the vehicle in “P”, apply the parking brake, and push the
“POWER” switch OFF in order to stop the hybrid system (the “READY” light turns OFF),
before working in the engine compartment.
• The hybrid transaxle, engine radiator, and inverter radiator may reach high temperatures
during inspection. Carefully observe all caution labels and instructions on these
components.
• Be sure to keep the vehicle in “P” at all times unless otherwise instructed. When the
selector lever is in “N”, the hybrid vehicle battery will not charge even if the gasoline engine
is operating.
• When leaving the vehicle, put the selector lever in “P”, apply the parking brake, and push
the “POWER” switch OFF in order to stop the hybrid system (the “READY” light turns OFF).
• Air vents are located on the right rear seatback to cool the hybrid vehicle battery. Do not
block these air vents.
• Do not splash water on the electric components in the engine compartment.
READ AND UNDERSTAND TSIB “Hybrid System Electrical Safety Precautions.”
3
GS350/GS450h
PRECAUTIONS
