Lexus 2004 GX470 Owner's Manual page 167

OCCUPANT RESTRAINT SYSTEMS
"
1 Hitting a curb, edge of pavement or hard surface
2 Falling into or jumping over a deep hole
3 Landing hard or vehicle falling
The SRS front airbags may also deploy if a serious impact
occurs to the underside of your vehicle. Some examples
are shown in the illustration.
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