Lexus RX450H Manual page 572

You may replace the following bulbs by yourself. The difficulty level
of replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perform, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
For more information about replacing other light bulbs, contact any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.

Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. (P. 637)

Removing the engine compartment covers
P. 480

Turning off the power back door main switch (if equipped).
P. 89

Front bulb locations
Vehicles with halogen headlights
Headlight low
Front turn signal
RX450h_EE
4-3. Do-it-yourself maintenance
Headlight high
Front fog light
4
539