Lexus 2004 LS430 Owner's Manual page 208

OCCUPANT RESTRAINT SYSTEMS
16L654
In the following cases, contact your Lexus dealer as soon as
possible:
D The SRS front airbags have been inflated.
D The front of the vehicle (shaded in the illustration) was
involved in an accident that was not severe enough to cause
the SRS front airbags to inflate.
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D The pad section of the steering wheel, front passenger
airbag cover or lower portion of instrument panel (shaded
in the illustration) is scratched, cracked, or otherwise
damaged.
NOTICE
Do not disconnect the battery cables before contacting
your Lexus dealer.