Lexus RX300 Manual page 106

Seat belt extender
If the front or rear outside seat belts cannot be fastened securely
because it is not long enough, a personalized seat belt extender is
available from your Lexus dealer free of charge.
Please contact your local Lexus dealer so that the dealer can order
the proper required length for the extender. Bring the heaviest coat
you expect to wear for proper measurement and selection of length.
Additional ordering information is available at your Lexus dealer.
CAUTION
When using the seat belt extender, observe the following.
Failure to follow these instructions could result in less
effectiveness of the seat belt restraint system in case of vehicle
accident, increasing the chance of personal injury.
D Never use the seat belt extender if you can fasten the seat
belt without it.
D Remember that the extender provided for you may not be
safe when used on a different vehicle, or for another person
or at a different seating position than the one originally
intended for.
COMFORT ADJUSTMENT
16R092b
To connect the extender to the seat belt, insert the tab into the
seat belt buckle so that the "PRESS" signs on the buckle release
buttons of the extender and the seat belt are both facing outward
as shown.
You will hear a click when the tab locks into the buckle.
When releasing the seat belt, press on the buckle release button on
the extender, not on the seat belt. This helps prevent damage to the
vehicle interior and extender itself.
When not in use, remove the extender and store in the vehicle for
future use.
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