How to decode a 2009 Buick LaCrosse VIN

Characters 1-3 of a 2009 Buick LaCrosse VIN

A World Manufacturer Identifier (WMI) is a unique code that identifies the manufacturer of a vehicle and provides essential details about it. For the 2009 Buick LaCrosse, the WMI “2G4” indicates that this passenger car was manufactured by General Motors LLC. This specific identifier not only confirms the car’s origin within the United States but also pinpoints the manufacturing facility in Warren, Michigan. Such detailed information derived from the WMI enables clear identification of the vehicle’s make, offering insights into its production history and technical specifications. The WMI is an integral part of the Vehicle Identification Number (VIN), acting as its cornerstone by delivering the first, foundational details about the car’s background.

List of WMI Codes for a 2009 Buick LaCrosse

WMI: 2G4

Model Years Covered: 2005-2009
Example VIN: 2G4WD582091100923
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 2009 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 2009 Buick LaCrosse:

Known VDS for a 2009 Buick LaCrosse
WD582	WC582	WN58C

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 2009 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 2009 Buick LaCrosse VIN — Year Code

Year Code	Year
9	2009

11th Character in the 2009 Buick LaCrosse VIN — Plant Code(s)

Known 2009 Buick LaCrosse Assembly Factory VIN Code(s)

Plant Code	Plant City	Plant State	Plant Country	Plant Company Name	Example VIN
1	Oshawa #2	Ontario	Canada		2G4WD582091100923

VIN Characters 12 - 17 of a 2009 Buick LaCrosse

The final 6 characters in a 2009 Buick LaCrosse’s 17-digit VIN are its serial number, which will be unique to every vehicle.

Check your Buick LaCrosse’s VIN below:

How to find a 2009 Buick LaCrosse’s VIN?

Locating the VIN number on your 2009 Buick LaCrosse is key for identification. Here’s how to find it:

Look at the dashboard on the driver’s side of your 2009 Buick LaCrosse. The VIN can typically be seen through the windshield on the lower right corner.
Open the door on the driver’s side of your Buick LaCrosse and check the door post (where the door latches when it is closed). The VIN is usually located on a label or sticker.
Examine the engine block of your 2009 Buick LaCrosse. The VIN may be stamped on the engine itself.
Check the rear wheel well above the tire. In some vehicles, including the Buick LaCrosse, the VIN may be found in this area.
Inspect the trunk area of your LaCrosse. The VIN could be placed underneath the spare tire or on the trunk’s walls.

What info can a 2009 Buick LaCrosse VIN reveal?

Model Year: The VIN can reveal the vehicles model year being the year 2009, providing insights into the age and potential technological features of the vehicle.
Vehicle Specifications: This sedan, specifically a Buick LaCrosse CXL, is characterized by its 3.8L V-Shaped engine manufactured by Buick, showcasing a blend of performance and design precision.
Engine and Performance: The engine boasts a displacement of 3800.0 CC or 231.89 CI, with six cylinders and employs sequential fuel injection (SFI) for fuel delivery, optimizing performance and fuel efficiency.
Safety Features: Enhanced safety is indicated through the inclusion of front airbags for both driver and passenger, as well as the mention of roof airbags and an occupant sensor, highlighting the vehicle’s commitment to occupant protection.
Fuel Type: The primary fuel type for this vehicle is gasoline, offering insights into fuel preferences and potential fuel economy for prospective users.
Manufacturing Location: Constructed in Canada’s Oshawa #2 plant located in Ontario, this detail hints at the manufacturing quality and standards upheld during the vehicle’s assembly.
Additional Features: The car is equipped with a direct tire pressure monitoring system (TPMS), ensuring vehicle safety and maintenance are kept to optimal levels through real-time tire pressure alerts.

Don’t have your 2009 Buick LaCrosse’s VIN handy? Try our license plate lookup instead!

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Sample VIN Decode Report for a 2009 Buick LaCrosse

Vehicle Spec	Value
Body Class	Sedan/Saloon
Cooling Type	Water
Displacement (CC)	3800.0
Displacement (CI)	231.89022755998
Displacement (L)	3.8
Doors	4
Engine Configuration	V-Shaped
Engine Manufacturer	Buick
Engine Model	L26
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	2009
Other Restraint System Info	Roof Airbags for Driver and passenger and Occupant Sensor
Plant City	Oshawa #2
Plant Company Name
Plant Country	Canada
Plant State	Ontario
Seat Belt Type	Manual
Series	CX
Tire Pressure Monitoring System (TPMS) Type	Direct
Vehicle Descriptor	2G4WC582*91
Vehicle Type	Passenger Car
Sample_VIN	2G4WC582091110001