GMC Acadia Back Up Light Bulb Size
The GMC Acadia back up light utilizes bulb sizes 921 and 12185 for the rear illumination system. Data for the specified components covers the production range from 2007 through 2019.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Back Up Light
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2013-2019 | 921 | W16W | Check Price |
| 2007-2012 | 12185 | 12185 | Check Price |
Inner Back Up Light
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2017-2019 | 921 | W16W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 | Check Price |
| Philips part number. Halogen bulb, specialty application. 12V. | 12185 | Check Price |