Toyota Lexusc Owner's Handbook Manual page 217

OCCUPANT RESTRAINT SYSTEMS
D Do not put anything or any part of your body or install
anything such as accessories or turbo timers on or in
front of the dashboard, lower portion of instrument
panel or steering wheel pad that houses the front
airbag system. They might restrict inflation or cause
death or serious injury as they are projected rearward
by the force of the deploying airbags. Likewise, the
driver and front passenger should not hold objects in
their arms or on their knees.
D Do not modify or remove any wiring. Do not modify,
remove, strike or open any components, such as the
steering wheel pad, steering wheel, column cover,
front passenger airbag cover, front passenger
airbag, driver knee airbag or airbag sensor assembly.
Doing so may prevent the front airbag system from
activating correctly, cause sudden activation of the
system or disable the system, which could result in
death or serious injury.
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