Pontiac Vibe License Plate Bulb Size

The Pontiac Vibe license plate light requires a 168 bulb size for proper illumination of the rear registration area. Data for the specified component covers the period from 2003 through 2008.

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
2003-2008	168

Bulb Specifications

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

Other Locations

Additional Notes

The Pontiac Vibe uses the 168 bulb for the license plate position across all listed model years, spanning 2003-2008.
The 168 is a T10 miniature wedge bulb, meaning it connects to its socket through a wedge-shaped base rather than a bayonet or screw fitting.
The 168 operates at 12 volts and draws 4.9 watts, placing it among the lower-wattage bulbs used in automotive lighting applications.
The 168 carries ANSI standardization recognized in both the United States and Canada, meaning the specification is consistent across North American markets.
The T10 designation refers to the bulb's tubular envelope width, expressed in eighths of an inch, making the envelope approximately 10/8 of an inch wide.
The wedge base design of the 168 eliminates the need for a separate metal base, as the glass envelope itself forms the contact points within the socket.
The 168 and the closely related 194 share the same T10 wedge form factor but differ in wattage, making them physically interchangeable in many sockets while producing different light output levels.