Volkswagen Tiguan Back Up Light Bulb Size

The Volkswagen Tiguan back up light requires a 921 bulb size for proper installation and function within the rear lighting assembly. Available data covers the range from 2009 to 2018 for the specified vehicle components.

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
2009-2018	921

Bulb Specifications

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

Other Locations

Additional Notes

The Volkswagen Tiguan uses the 921 bulb size for its back up light across the 2009-2018 model years.
The 921 is classified as a T15 wedge-base bulb, meaning it uses a plastic wedge at its base rather than a metal screw or bayonet fitting to secure it in the socket.
The 921 bulb operates at 12 volts and draws 16 watts, which is consistent with standard automotive electrical systems.
The 921 designation follows ANSI standards recognized in both the United States and Canada, placing it within a regulated specification framework for bulb construction and performance.
The T15 designation refers to the bulb's tubular shape, with the numeric portion indicating a width of 15 eighths of an inch across the glass envelope.
Because the 921 is an ANSI-standardized wedge bulb, it is physically interchangeable with other bulbs sharing the T15 wedge base, provided voltage and wattage ratings are also compatible.