Kia Forte5 Back Up Light Bulb Size

The Kia Forte5 back up light requires a bulb size of 921 for proper installation and function. Data for the specified lighting component covers the range from 2014 to 2018.

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
2014-2018	921

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921

Other Locations

Additional Notes

The 921 bulb is the sole back up light bulb size listed for the Kia Forte5 across the 2014-2018 model years.
The 921 is a wedge-type bulb, classified under the T15 designation, which refers to its tubular shape measuring 15/8 inches in length.
Wedge bulbs use a pinched glass base to make direct electrical contact with the socket, eliminating the need for a separate metal base or pins.
The 921 operates at 12 volts and draws 16 watts, which is standard for reverse light applications in passenger vehicles.
The 921 carries an ANSI designation, meaning it conforms to a standardized specification recognized in both the United States and Canada.
Because the 921 is an ANSI-standardized bulb, units from different manufacturers sharing that designation are expected to meet the same electrical and physical specifications, supporting interchangeability within that standard.