Lexus RX450h Stepwell Bulb Size
The Lexus RX450h stepwell light uses 168 and 194 bulb sizes for the interior lighting system. Data for the specific components covers the period from 2010 through 2019.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 2016-2019 | 168 |
| 2010-2015 | 194 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |