Toyota Lexusc Owner's Handbook Manual page 147

INTERIOR EQUIPMENT
Rear
" Rear seat armrest
To use the cup holder, pull down the rear seat armrest and
push the button on the armrest.
The cup holder is designed for holding cups or drink-cans
securely.
128
CAUTION
D Do not place anything else other than cups or
drink-cans on the cup holder, as such items may be
thrown about in the compartment and possibly injure
people in the vehicle during sudden braking or in an
accident.
D To reduce the chance of injury in case of an accident
or sudden stop while driving, keep the cup holder
closed when not in use.