Lexus LX 470 1998 Owner's Manual page 34

CAUTION
Before driving, make sure the doors are closed and locked,
especially when small children are in the vehicle. Along with
the proper use of seat belts, locking the doors helps prevent the
driver and passengers from being thrown out from the vehicle
during an accident. It also helps prevent the doors from being
opened unintentionally.
Locking with power door lock switch
11X003b
" 1 Lock
2 Unlock
To lock all the side doors and back door simultaneously, push the
power door lock switch on the front side. Pushing on the rear
side will unlock them.
The same switch is also equipped on the front passenger's side.
When the front doors are locked from the outside, the switch will not
work until either front door is unlocked with the key or lock button.
KEYS AND DOORS
17