Lexus GS 450h Manual page 17

High Voltage Safety (Continued)
Electronic Power Steering System
The GS450h is equipped with a 37-Volt AC assist motor for the Electric
Power Steering (EPS) system. The EPS computer generates 37-Volts from
the 12-Volt system. The 37-Volt wires are isolated from the metal chassis
and are routed a short distance from the EPS computer to the EPS assist motor
in the engine compartment.
NOTE:
37-Volt AC has a higher arc potential than the normal 12-Volt DC.
High Intensity Discharge Headlights
Similar to conventional, non-hybrid, Lexus vehicles, the GS450h is equipped
with low beam projector type High Intensity Discharge (HID) headlights.
The light control unit, located inside the headlight assembly, contains a high
voltage generator circuit that momentarily boosts 12-Volts to 22-kV that is
applied to the bulb when the headlights are turned on. Once illuminated, the
voltage drops to approximately 45-Volts.
WARNING:
High voltage is applied to the HID bulb socket when the low beam
headlights are turned on. To avoid serious injury or death by electric
shock do not touch the bulb socket when the headlights are turned on.
EPS
Computer
37-Volt EPS
HID Low Beam
Projector Type HID Low Beam Headlights
-14-
EPS
Assist Motor
Headlight