Lexus RX 450h 2012 Owner's Manual page 571

4-3. Do-it-yourself maintenance
STEP 2
570
Turn bolt B the same number of
turns and in the same direction
as step 1 using a Phillips-head
screwdriver.
If the headlight cannot be
adjusted using this procedure,
take the vehicle to your Lexus
dealer to adjust the headlight
aim.