How do I adjust the side mirrors in the Lexus RX300? Scarlett March 05, 2024 01:46 Updated To adjust the side mirrors, follow these steps: Locate the side mirror controls as shown in the picture below. Press the switch to the left or right depending on which side you want to adjust. Press on the directional pad to adjust the angle. Related articles How do I switch on/off the wipers for the Lexus RX300? How do I adjust the side mirrors in the Lexus CT200H?