Lexus CT200h Map Light Bulb Size

The Lexus CT200h map light requires a bulb size of 168 for proper installation and function within the interior overhead console. Available data for the specified component covers the range of 2011 through 2017.

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
2011-2017	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Lexus CT200h uses the 168 bulb size for the map light across all listed model years, spanning 2011-2017.
The 168 bulb is classified under the ANSI standard, which applies to the United States and Canada markets.
It belongs to the T10 form factor, a miniature wedge-base bulb type commonly found in interior lighting applications.
The 168 bulb operates at 12 volts, consistent with standard automotive electrical systems.
Its rated wattage is 4.9W, placing it in the low-power range typical of interior cabin lighting.
The wedge base design means the bulb is held in place by tension from the socket contacts rather than a separate locking mechanism, which is a defining characteristic of the T10 form factor.
Because the 168 specification remains unchanged across the entire 2011-2017 production span of the CT200h, the map light socket design is consistent across all listed model years.