Buick LaCrosse Bulb Sizes
2019 Buick LaCrosse stores 24 bulb-chart rows across 19 lighting positions.
Stored halogen, HID, Bi-LED, and LED rows are alternative equipment when the chart lists more than one. A vehicle uses one lighting system. Verify the lamps installed before ordering. A halogen bulb is not the replacement for an LED assembly, and an LED conversion is not shown as the OEM halogen bulb.
Lighting positions
- Fog Light Bulb Front
Stored position. Choose the stored designation.
H11 LED · LED designationH16 LED · LED designation - Headlight Bulb High Beam and Low BeamD3SStored position · HID capsuleView on Amazon
- Back Up Reverse Light Bulb921Stored position · Halogen designationView on Amazon
- Brake Light Bulb7440RStored position · Halogen designationView on Amazon
- Center High Mount Stop Light BulbLEDStored position · Integrated LED assemblyView on Amazon
- Daytime Running Light BulbLEDStored position · Integrated LED assemblyView on Amazon
- License Plate Light Bulb
Stored position. Choose the stored designation.
2825 · Halogen designation98 · Halogen designation - Parking Light BulbLEDStored position · Integrated LED assemblyView on Amazon
- Side Marker Light Bulb FrontLEDStored position · Integrated LED assemblyView on Amazon
- Side Marker Light Bulb RearLEDStored position · Integrated LED assemblyView on Amazon
- Stepwell Light Bulb
Stored position. Choose the stored designation.
194 · Halogen designation7441 · Halogen designation - Tail Light BulbLEDStored position · Integrated LED assemblyView on Amazon
- Turn Signal Light Bulb FrontLEDStored position · Integrated LED assemblyView on Amazon
- Turn Signal Light Bulb Rear7440Stored position · Halogen designationView on Amazon
- Dome Light BulbLEDStored position · Integrated LED assemblyView on Amazon
- Interior Door Light Bulb
Stored position. Choose the stored designation.
194 · Halogen designation7441 · Halogen designation - Map Light BulbLEDStored position · Integrated LED assemblyView on Amazon
- Trunk or Cargo Area Light
Stored position. Choose the stored designation.
194 · Halogen designation7441 · Halogen designation - Vanity Mirror Light Bulb7065Stored position · Halogen designationView on Amazon
Choose a lighting position to see the stored designation.
Complete bulb chart
| Position | Configuration | Designation | Technology |
|---|---|---|---|
| Fog Light Bulb Front | Stored position | H11 LED | LED designation |
| Fog Light Bulb Front | Stored position | H16 LED | LED designation |
| Headlight Bulb High Beam and Low Beam | Stored position | D3S | HID capsule |
| Back Up Reverse Light Bulb | Stored position | 921 | Halogen designation |
| Brake Light Bulb | Stored position | 7440R | Halogen designation |
| Center High Mount Stop Light Bulb | Stored position | LED | Integrated LED assembly |
| Daytime Running Light Bulb | Stored position | LED | Integrated LED assembly |
| License Plate Light Bulb | Stored position | 2825 | Halogen designation |
| License Plate Light Bulb | Stored position | 98 | Halogen designation |
| Parking Light Bulb | Stored position | LED | Integrated LED assembly |
| Side Marker Light Bulb Front | Stored position | LED | Integrated LED assembly |
| Side Marker Light Bulb Rear | Stored position | LED | Integrated LED assembly |
| Stepwell Light Bulb | Stored position | 194 | Halogen designation |
| Stepwell Light Bulb | Stored position | 7441 | Halogen designation |
| Tail Light Bulb | Stored position | LED | Integrated LED assembly |
| Turn Signal Light Bulb Front | Stored position | LED | Integrated LED assembly |
| Turn Signal Light Bulb Rear | Stored position | 7440 | Halogen designation |
| Dome Light Bulb | Stored position | LED | Integrated LED assembly |
| Interior Door Light Bulb | Stored position | 194 | Halogen designation |
| Interior Door Light Bulb | Stored position | 7441 | Halogen designation |
| Map Light Bulb | Stored position | LED | Integrated LED assembly |
| Trunk or Cargo Area Light | Stored position | 194 | Halogen designation |
| Trunk or Cargo Area Light | Stored position | 7441 | Halogen designation |
| Vanity Mirror Light Bulb | Stored position | 7065 | Halogen designation |
Replacement check
Read the number on the installed bulb or the housing. Confirm whether the headlights are halogen, HID, or an LED assembly. H11 and H11B are different. 9005 and 9006 are different. This page does not substitute a nearby designation to fill the product list.
Year variations
- Halogen low beam stays H11 across the stored years.
Questions
What fog light bulb does the Buick LaCrosse use?
2019 stores H11 LED, H16 LED for fog lights.
What turn-signal bulb does the Buick LaCrosse use?
Halogen-configuration turn signals in 2019 store LED, 7440. An LED-headlight configuration can list LED instead of these bulbs.
What brake-light bulb does the Buick LaCrosse use?
Halogen-configuration brake lights in 2019 store 7440R.
What does an LED record mean?
A stored part of LED means that configuration is recorded as an LED assembly. It is not a replaceable halogen bulb, and this page does not sell an LED conversion as the OEM bulb for that assembly.
How are HID bulbs handled?
D-series capsules such as D1S or D3S are HID. Exact catalog matches for those positions use HID products, not halogen bulbs.
Can I substitute a nearby bulb number?
No. H11 and H11B stay different. 9005 and 9006 stay different. This page matches the stored designation and does not swap in another bulb to fill the product list.
Does a catalog match guarantee the bulb fits?
A designation match means the product is filed under that bulb number and technology. It does not prove the lamp, socket, or vehicle configuration. Check the bulb in the housing before ordering.
How do I verify the replacement?
Read the number on the bulb or the housing, confirm whether the headlights are halogen, HID, or LED, and match that designation. Position names that say “with halogen headlights” or “with LED headlights” are separate configurations.
Does the Buick LaCrosse bulb chart change by year?
Bulb rows are stored for 15 years, 2005–2019. This page shows 2019. Choose another year to see that chart. Years are not collapsed into one bulb list.
What does the chart store for back up reverse light bulb?
2019 stores 921 for Back Up Reverse Light Bulb.
What does the chart store for center high mount stop light bulb?
2019 stores LED for Center High Mount Stop Light Bulb.
What does the chart store for daytime running light bulb?
2019 stores LED for Daytime Running Light Bulb.
What does the chart store for license plate light bulb?
2019 stores 2825, 98 for License Plate Light Bulb.
What does the chart store for parking light bulb?
2019 stores LED for Parking Light Bulb.
What does the chart store for side marker light bulb front?
2019 stores LED for Side Marker Light Bulb Front.
What does the chart store for side marker light bulb rear?
2019 stores LED for Side Marker Light Bulb Rear.