How to decode a 2004 GMC Yukon XL VIN

Characters 1-3 of a 2004 GMC Yukon XL VIN

A World Manufacturer Identifier (WMI) is a unique code assigned to every vehicle manufacturer to identify the place of production, manufacturer, and vehicle type. For the 2004 GMC Yukon-XL, the WMI codes of “1GK” and “3GK” specify vehicles made by General Motors LLC in Warren, Michigan, United States, and classify them as Multipurpose Passenger Vehicles (MPVs). These codes not only validate the vehicle’s origin but also provide essential details relevant to safety standards and type approval. Specifically, the Yukon-XL models produced between 2001 and 2006 for “3GK”, and between 2001 and 2011, then resuming from 2015 to 2024 for “1GK”, highlight the continuity and evolution of this model within General Motors’ production line. The WMI is a crucial component of the vehicle identification number (VIN), ensuring each vehicle can be globally recognized and traced back to its manufacturer, model year, and specific attributes.

List of WMI Codes for a 2004 GMC Yukon XL

WMI: 3GK

Model Years Covered: 2000-2006
Example VIN: 3GKEC16Z04G144713
Manufacturer Name: General Motors LLC
Vehicle Type: Multipurpose Passenger Vehicle (MPV)
City: Warren
State or Province: Michigan
Country: United States WMI: 1GK
Model Years Covered: 2001-2011, 2015-2024
Example VIN: 1GKGK26U14R145939
Manufacturer Name: General Motors LLC
Vehicle Type: Multipurpose Passenger Vehicle (MPV)
City: Warren
State or Province: Michigan
Country: United States

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 2004 GMC Yukon XL 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 2004 GMC Yukon XL:

Known VDS for a 2004 GMC Yukon XL
EC16Z	GK26U	FK16Z	GK26G	FK16T	EC16T	GC26G	FK66U

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 2004 GMC Yukon XL 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 2004 GMC Yukon XL VIN — Year Code

Year Code	Year
4	2004

11th Character in the 2004 GMC Yukon XL VIN — Plant Code(s)

Known 2004 GMC Yukon XL Assembly Factory VIN Code(s)

Plant Code	Plant City	Plant State	Plant Country	Plant Company Name	Example VIN
G	Silao	Guanajuato	Mexico	Silao Assembly	3GKEC16Z04G144713
J	Janesville	Wisconsin	United States	Gm Truck Group	1GKEC16Z04J108163
R	Arlington	Texas	United States	Gm Truck Group	1GKGK26U14R145939

VIN Characters 12 - 17 of a 2004 GMC Yukon XL

The final 6 characters in a 2004 GMC Yukon XL’s 17-digit VIN are its serial number, which will be unique to every vehicle.

Check your GMC Yukon XL’s VIN below:

How to find a 2004 GMC Yukon XL’s VIN?

Locating the VIN number on your 2004 GMC Yukon XL is key for identification. Here’s how to find it:

Look at the dashboard on the driver’s side of your GMC Yukon XL, near where the dashboard meets the windshield. The VIN can typically be seen from outside the vehicle.
Examine the door pillar on the driver’s side when you open the door of your GMC Yukon XL. The VIN might be located on a sticker or label where the door latches.
Under the hood of your GMC Yukon XL, inspect the front of the engine block for the VIN, which may be stamped onto a metal plate.
Peer into the rear wheel well above the tire on the driver’s side. Sometimes the VIN is stamped there on GMC Yukon XL models.
Check your GMC Yukon XL’s vehicle registration documents, insurance papers, or the title for the VIN.
On the chassis of the GMC Yukon XL, look underneath the vehicle for the VIN, which may be found on the frame near the windshield washer fluid container.

What info can a 2004 GMC Yukon XL VIN reveal?

Model Year: The VIN can reveal the vehicle’s model year as the year 2004, providing insights into the age and potential market value of the vehicle.
Vehicle Type and Body Class: It can uncover that the vehicle type is a Multipurpose Passenger Vehicle, specifically a Sport Utility Vehicle (SUV)/Multi-Purpose Vehicle (MPV), hinting at its intended use and design.
Engine Specifications: The engine of this vehicle is produced by GM, has a V-Shaped configuration, and is an LQ4 model with 8 cylinders. It boasts a displacement of 6.0 liters or 366.14246456839 cubic inches, demonstrating its powerful capabilities.
Drive Type and Fuel System: This vehicle is equipped with a 4WD (4-Wheel Drive/4x4) system and uses Gasoline as its primary fuel type, administered through Multipoint Fuel Injection (MPFI), affecting the vehicle’s off-road abilities and fuel consumption.
Manufacturing Information: It was manufactured in Janesville, Wisconsin, United States, by the GM Truck Group, indicating the vehicle’s American production origins, offering insights into its manufacturing history.
Vehicle Model and Trim: The vehicle model is identified as a Yukon XL, with a trim level classified as Luxury. Furthermore, it belongs to the series 1500 and series 1/2 Ton, denoting a specific classification within its range, providing details about its features and capabilities.
Gross Vehicle Weight Rating: Pertains to Class 2F, specifically between 7,001 - 8,000 lb (3,175 - 3,629 kg), indicating the vehicle’s weight classification and potential load capacity, offering insights into its size and towing capabilities.

Don’t have your 2004 GMC Yukon XL’s VIN handy? Try our license plate lookup instead!

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Sample VIN Decode Report for a 2004 GMC Yukon XL

Vehicle Spec	Value
Body Class	Sport Utility Vehicle (SUV)/Multi-Purpose Vehicle (MPV)
Brake System Type	Hydraulic
Displacement (CC)	6000.0
Displacement (CI)	366.14246456839
Displacement (L)	6.0
Drive Type	4WD/4-Wheel Drive/4x4
Engine Configuration	V-Shaped
Engine Manufacturer	GM
Engine Model	LQ4
Engine Number of Cylinders	8
Fuel Delivery / Fuel Injection Type	Multipoint Fuel Injection (MPFI)
Fuel Type - Primary	Gasoline
Gross Vehicle Weight Rating From	Class 2F: 7,001 - 8,000 lb (3,175 - 3,629 kg)
Model	Yukon XL
Model Year	2004
Other Engine Info	Iron
Plant City	Janesville
Plant Company Name	GM Truck Group
Plant Country	United States
Plant State	Wisconsin
Series	1500
Series2	1/2 Ton
Trim	Luxury
Vehicle Descriptor	1GKFK66U*4J
Vehicle Type	Multipurpose Passenger Vehicle
Sample_VIN	1GKFK66U04J100332