Factory build sheet
2011 Buick Lucerne CXL Ultra Luxury
Build 1G4HJ5EM-B · 3.9L 6cyl · Sedan
VIN positions 1 through 8 read 1G4HJ5EM and position 10 reads B. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Lucerne whose VIN starts 1G4HJ5EM and carries B in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 1,566 of them.
- Decoded Jul 7, 2026
- 1,566 known VINs
- 23 listed for sale now
Factory specification
As filed by Buick with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.
Engine
- Displacement
- 3.9 L
- Cylinders
- 6
- Configuration
- V-Shaped
- Engine model
- LGD
- Engine manufacturer
- GM
- Fuel type
- Flexible Fuel Vehicle (FFV)
Body & chassis
- Body class
- Sedan/Saloon
- NHTSA body type
- PASSENGER CAR
- Doors
- 4
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 1
- GVWR
- 6,000 lb or less
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
What this build asks today
Asking prices of live dealer listings decoded to this exact configuration — narrower than the trim-level figure, because every car counted here shares the same engine, transmission and drivetrain.
$6,485 median asking price · 21 listings · as of Sep 6, 2026
Low 2% of listings $1,500 Top 2% of listings $15,999
The same build, other model years
Buick used the VIN pattern 1G4HJ5EM for 2 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
- 2010 Ultra Luxury 3.9L 6cyl Sedan · 331 vehicles code A
-
2011 You are here code B $6,485
How this VIN pattern is read
A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.
| Positions | Characters | What they encode |
|---|---|---|
| 1–3 | 1G4 | GENERAL MOTORS LLC · World manufacturer identifier |
| 4–8 | HJ5EM | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | B | Model year — 2011 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
NHTSA safety ratings
Crash-test results are published per model year and body style, so they cover the 2011 Buick Lucerne as a whole rather than this build alone.
Overall
★★★★ ★ 4 / 5
Frontal crash
★★★★★ 5 / 5
Side crash
★★ ★★★ 2 / 5
Rollover
★★★★★ 5 / 5
1,566 vehicles carry this build
Every VIN we have decoded to 1G4HJ5EM-B shares the specification above.
- 1,566 Known VINs
- 23 Listed for sale now
- 21 Priced listings
- $6,485 Median asking
Vehicles of this build
A fixed sample of 2 vehicles carrying this configuration — each with its own history page. The sample refreshes quarterly, not nightly, so it stays put between visits.
Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.
Neighboring configurations
Other factory configurations of the Lucerne, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.
- 2011 Ultra Super 4.6L 8-cyl · Sedan saloon 91 vehicles
- 2006 CXS 4.6L 8-cyl · Sedan saloon 1,294 vehicles · $7,099 median
- 2006 CXL 4.6L 8-cyl · Sedan saloon 921 vehicles · $5,999 median
- 2007 CXS 4.6L 8-cyl · Sedan saloon 1,009 vehicles · $5,995 median
- 2008 CXS 4.6L 8-cyl · Sedan saloon 764 vehicles · $6,295 median
Keep going
Where this data comes from
Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.
Prices are asking prices from 21 live dealer listings decoded to this build , last updated September 6, 2026 . They are what sellers ask, not what buyers paid.
Vehicle counts come from the 1,566 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.