Chevrolet Trailblazer Back Up Light Bulb Size
Chevrolet Trailblazer back up light bulbs utilize 921 and 3157 bulb sizes depending on model generation. The replacement chart covers vehicle production spanning 2002 to 2024 with corresponding bulb size specifications.
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 | US Type | EU Type | Shop |
|---|---|---|---|
| 2023-2024 | 921 | W16W | Check Price |
| 2021 | 921 | W16W | Check Price |
| 2002-2005 | 3157 | P27/7W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3157 | Check Price |