Pontiac Torrent Back Up Light Bulb Size

The Pontiac Torrent back up light utilizes 3157 and 2458 bulb sizes depending on the specific version of the vehicle. Data for the bulb sizes covers the range from 2006 to 2009.

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
2006-2009	3157

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3157

Other Locations

Additional Notes

The Pontiac Torrent uses the 3157 bulb size for the back up light across all documented model years, spanning 2006-2009.
The 3157 is an ANSI-standardized bulb type, meaning its specifications are governed by a formal industry standard recognized in both the United States and Canada.
The 3157 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 3157 operate at 27W and 7W respectively, with the higher-wattage filament typically serving the primary function and the lower-wattage filament serving a secondary role.
The 3157 operates on a 12-volt electrical system, which is consistent with the standard automotive electrical architecture found in passenger vehicles.
The bulb follows the T25 wedge form factor, a designation that describes the shape and base type of the housing used to seat the bulb in its socket.
Because the 3157 is a dual-filament type, substituting it with a single-filament equivalent would result in the loss of one functional circuit, making filament count a critical factor in replacement compatibility.