Buick Rendezvous Back Up Light Bulb Size

The Buick Rendezvous back up light utilizes a 3057 bulb size for the specific lighting component located at the rear of the vehicle. Data for the bulb specifications covers the range from 2002 through 2007.

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
2002-2007	3057

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3057

Other Locations

Additional Notes

The Buick Rendezvous uses the 3057 bulb for the back up light across all model years from 2002-2007.
The 3057 is an ANSI-standardized bulb type, meaning its specifications are governed by a recognized North American standard shared across the United States and Canada.
The 3057 is a dual-filament bulb, meaning it contains two separate filaments within a single housing, each operating at a different wattage.
The two filaments in the 3057 operate at 27W and 7W respectively, with the higher-wattage filament serving the primary back up light function.
The 3057 operates on a 12-volt electrical system, which is consistent with standard automotive 12V architecture.
The 3057 follows a T25 wedge form factor, where T25 refers to the tubular glass envelope size and the wedge base type, which seats directly into a socket without a separate metal base.
Because the 3057 is a dual-filament bulb, substituting it with a single-filament alternative would result in one circuit receiving no power, making filament count a critical factor in replacement selection.
The consistent use of the 3057 across the full 2002-2007 production run of the Rendezvous indicates that the back up light socket and wiring configuration remained unchanged throughout the vehicle's lifespan.