Lexus 2004 GX470 Owner's Manual page 298

Rear seat entertainment system controller
The rear seat entertainment system can be operated with
the rear seat entertainment system controller. The system
cannot be operated by touching the switches on the
screen directly.
NOTICE
Keep the controller away from direct sunlight, high heat
and high humidity. These conditions could cause the
case to deform or the battery to explode or leak.
CAUTION
Do not disassemble or modify the controller. It may
cause an accident, fire or electric shock.
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