How to decode a 2006 Buick LaCrosse VIN

Characters 1-3 of a 2006 Buick LaCrosse VIN

A World Manufacturer Identifier (WMI) is a unique code that identifies the manufacturer of a specific vehicle. It forms the first three characters of the Vehicle Identification Number (VIN), which provides detailed information about the vehicle’s make, model, and place of manufacture. For instance, the 2006 Buick LaCrosse has a WMI of 2G4, indicating that it is a passenger car manufactured by General Motors LLC in Warren, Michigan, United States. This WMI is crucial for vehicle registration, identification, and various legal purposes. It not only verifies the vehicle’s authenticity but also provides valuable information about its origins and specification class.

List of WMI Codes for a 2006 Buick LaCrosse

WMI: 2G4

Model Years Covered: 2005-2009
Example VIN: 2G4WE587061108430
Manufacturer Name: General Motors LLC
Vehicle Type: Passenger Car
City: Warren
State or Province: Michigan
Country: United States

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 2006 Buick LaCrosse VIN

These characters correspond to components like:

Engine type
Transmission
Model or trim
Body style
Gross vehicle weight range

Below find the known vehicle descriptor codes for a 2006 Buick LaCrosse:

Known VDS for a 2006 Buick LaCrosse
WE587	WC582	WD552	WD582	WC552

Auto manufacturers have some discretion to decide how they want to code this section, but its contents and decoded results are generally consistent.

Character 9 is the “check digit” in a 2006 Buick LaCrosse VIN.

Based on a formula developed by the US Department of Transportation, it helps reduce fraud by ensuring the validity of the VIN.

10th Character in the 2006 Buick LaCrosse VIN — Year Code

Year Code	Year
6	2006

11th Character in the 2006 Buick LaCrosse VIN — Plant Code(s)

Known 2006 Buick LaCrosse Assembly Factory VIN Code(s)

Plant Code	Plant City	Plant State	Plant Country	Plant Company Name	Example VIN
1	Oshawa #2 (Ost)	Ontario	Canada	Gmna	2G4WE587061108430

VIN Characters 12 - 17 of a 2006 Buick LaCrosse

The final 6 characters in a 2006 Buick LaCrosse’s 17-digit VIN are its serial number, which will be unique to every vehicle.

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How to find a 2006 Buick LaCrosse’s VIN?

Locating the VIN number on your 2006 Buick LaCrosse is key for identification. Here’s how to find it:

Look at the dashboard on the driver’s side of your 2006 Buick LaCrosse. The VIN is commonly located there, where it’s visible through the windshield.
Examine the driver’s side door frame on your Buick LaCrosse. The VIN can typically be found on a label or sticker in the area where the door latches.
Check under the hood of your 2006 Buick LaCrosse. The VIN might also be stamped on the firewall of the engine bay.
Inspect the rear wheel well. On some vehicles, like your Buick LaCrosse, the VIN can be positioned above the tire on the frame.
Look at the vehicle title or registration documents, which will list the VIN for your 2006 Buick LaCrosse.
Sometimes, the VIN is also located on the chassis near the windshield washer container. Remember to have the hood open while checking this area in your Buick LaCrosse.

What info can a 2006 Buick LaCrosse VIN reveal?

Model Year: The VIN can reveal the vehicles model year, possibly indicating the year 2006, providing insights into the age and potential market value of the vehicle.
Vehicle Type and Body Class: The VIN data suggests that the vehicle could be a Passenger Car with a Sedan/Saloon body class, possibly offering insights into the size, style, and potential use of the vehicle.
Engine Specifications: According to the VIN, the vehicle may be equipped with a 3.6-liter V-Shaped engine by GM, model LY7, potentially indicating 6 cylinders and Sequential Fuel Injection (SFI) for fuel delivery. Such specifics might inform about the vehicle’s performance capabilities and engineering.
Safety Features: The VIN data suggests the presence of Curtain Air Bags in the 1st row for both driver and passenger, Front Air Bags also in the 1st row, and an occupant sensor, possibly highlighting the vehicle’s designed measures for occupant protection.
Fuel Type: The VIN indicates the primary fuel type as Gasoline, hinting at the vehicle’s compatibility with fuel types and potentially its fuel efficiency and environmental impact.
Manufacturing Information: The VIN data reveals that the vehicle might have been manufactured in Oshawa #2 (Ost), Ontario, Canada by GMNA, possibly indicating the production location, which can be an indicator of build quality and availability of parts.
Engine Cooling and Valve Train Design: Engine cooling may be managed through Water type cooling, and it may have a Dual Overhead Cam (DOHC) valve train design, possibly emphasizing the vehicle’s engine cooling efficiency and the sophistication of the engine’s internal mechanics.

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Sample VIN Decode Report for a 2006 Buick LaCrosse

Vehicle Spec	Value
Body Class	Sedan/Saloon
Cooling Type	Water
Curtain Air Bag Locations	1st Row (Driver and Passenger)
Displacement (CC)	3600.0
Displacement (CI)	219.68547874103
Displacement (L)	3.6
Doors	4
Engine Configuration	V-Shaped
Engine Manufacturer	GM
Engine Model	LY7
Engine Number of Cylinders	6
Front Air Bag Locations	1st Row (Driver and Passenger)
Fuel Delivery / Fuel Injection Type	Sequential Fuel Injection (SFI)
Fuel Type - Primary	Gasoline
Model	LaCrosse
Model Year	2006
Other Restraint System Info	Has Occupant Sensor
Plant City	Oshawa #2 (Ost)
Plant Company Name	GMNA
Plant Country	Canada
Plant State	Ontario
Seat Belt Type	Manual
Series	CXS
Valve Train Design	Dual Overhead Cam (DOHC)
Vehicle Descriptor	2G4WE587*61
Vehicle Type	Passenger Car
Windows	4
Sample_VIN	2G4WE587061108430