Lexus 2004 LS430 Owner's Manual page 206

OCCUPANT RESTRAINT SYSTEMS
16L648
D Do not attach any heavy, sharp or hard objects such
as keys or accessories to the ignition key.
objects may restrict the SRS knee airbag inflation or
be thrust into the driver's seat area by the force of the
deploying airbag, causing a danger.
186
NOTICE
Do not perform any of the following changes without
consulting your Lexus dealer.
interfere with proper operation of the SRS front airbag
system in some cases.
D Installation of electronic devices such as a mobile
two-way radio, cassette tape player or compact disc
player.
D Modification of the suspension system.
D Modification of the front end structure.
D Attachment of a grille guard (bull bar, kangaroo bar,
The
etc.), snowplow, winches or any other equipment to
the front end.
D Repairs made on or near the front fenders, front end
structure, console, steering column, steering wheel,
lower portion of instrument panel or dashboard near
the front passenger airbag.
Such changes can