For safe driving, adjust the seat and mirror to an appropriate position before driving.
Correct driving posture

Correct use of the seat belts
Make sure that all occupants are wearing their seat belts before driving the vehicle.
Use a child restraint system appropriate for the child until the child becomes large enough to properly wear the vehicle's seat belt.
Adjusting the mirrors
Make sure that you can see backward clearly by adjusting the inside and outside rear view mirrors properly.
WARNING Observe the following precautions.
Failure to do so may result in death or serious injury.
Doing so could cause the driver to lose control of the vehicle.
A cushion may prevent correct posture from being achieved, and reduce the effectiveness of the seat belt and head restraint.
Objects placed under the front seats may become jammed in the seat tracks and stop the seat from locking in place. This may lead to an accident and the adjustment mechanism may also be damaged.
Also, if you feel tired or sleepy while driving, do not force yourself to continue driving and take a break immediately.
Before driving
Seat beltsLexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Navigation System: Disc cannot be Inserted or is Ejected Right After Insertion
CAUTION / NOTICE / HINT NOTICE: Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System. Click here PROCEDURE 1. CHECK IF A PROPER DISC IS INSERTED (a ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 12.3 Inch Display): Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter
DESCRIPTION The stereo component amplifier assembly receives a vehicle speed signal from the combination meter assembly to control the ASL function. HINT:
A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at ...