The Interior of the Lexus RX are as follow:
| Variants | 2019 Lexus RX 300 | 2019 Lexus RX 300 Luxury | 2019 Lexus RX 300 F Sport |
| Sunroof | Front | Y | Y |
| Sunshade | Manual rear door window sun shades | Y | Y |
| Seat Features(Front-Driver) | Power Adjustable Front Seats with Memory Function, Heated and Ventilated | Power Adjustable Front Seats with Memory Function, Heated and Ventilated | Power Adjustable Front Seats with Memory Function, Heated and Ventilated |
| Seat Features(Passenger) | Power Recline, Manual Sliding, 40:20:40 Split-folding, Heated | Power Recline, Manual Sliding, 40:20:40 Split-folding, Heated | Power Recline, Manual Sliding, 40:20:40 Split-folding, Heated |
| Seat Features(Rear) | |||
| Cupholders | 2 Front, 2 Rear | 2 Front, 2 Rear | 2 Front, 2 Rear |
| Front Air-con | Dual-zone Automatic Climate Control System | Dual-zone Automatic Climate Control System | Dual-zone Automatic Climate Control System |
| Rear Air-con | Y | Y | Y |
| Paddle Shift | N | N | N |
| Multi-function Steering Wheel | |||
| Steering Tilt | |||
| Steering Telescopic | |||
| Steering Adjustment Electric | Y | Y | Y |
| Engine Start | Keyless Push Start | Keyless Push Start | Keyless Push Start |
| Head-up Display | N | N | N |
