How to decode a 2003 Hummer H1 VIN

Characters 1-3 of a 2003 Hummer H1 VIN

WMI, which stands for World Manufacturer Identifier, is a unique three-letter code that designates the manufacturer of a vehicle and provides specific information about the vehicle type and production location. This code is the initial portion of the Vehicle Identification Number (VIN), giving insight into the manufacturing details. For example, in the case of the 2003 Hummer H1, the code identifies AM General LLC as the manufacturer, signaling that the vehicle is a Multipurpose Passenger Vehicle (MPV), highly indicative of its versatile use. The manufacturing site for this vehicle is in Mishawaka, Indiana, United States, further pinpointing the origin of production. The WMI is a crucial tool for identifying vehicles globally, making it an essential aspect of automotive identification and regulation.

List of WMI Codes for a 2003 Hummer H1

WMI: 137

Model Years Covered: 1991-2004, 2006
Example VIN: 137FA57313E205227
Manufacturer Name: AM General LLC
Vehicle Type: Multipurpose Passenger Vehicle (MPV)
City: Mishawaka
State or Province: Indiana
Country: United States

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 2003 Hummer H1 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 2003 Hummer H1:

Known VDS for a 2003 Hummer H1
FA573	FA843	FA903	FA553

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 2003 Hummer H1 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 2003 Hummer H1 VIN — Year Code

Year Code	Year
3	2003

11th Character in the 2003 Hummer H1 VIN — Plant Code(s)

Known 2003 Hummer H1 Assembly Factory VIN Code(s)

Plant Code	Plant City	Plant State	Plant Country	Plant Company Name	Example VIN
E	Mishawaka	Indiana	United States		137FA57313E205227

VIN Characters 12 - 17 of a 2003 Hummer H1

The final 6 characters in a 2003 Hummer H1’s 17-digit VIN are its serial number, which will be unique to every vehicle.

Check your Hummer H1’s VIN below:

How to find a 2003 Hummer H1’s VIN?

Locating the VIN number on your 2003 Hummer H1 is key for identification. Here’s how to find it:

Examine the dashboard on the driver’s side of your 2003 Hummer H1, you can typically see the VIN through the lower corner of the windshield.
Check the door jamb on the driver’s side of your Hummer H1, where the door latches when closed, there should be a label or sticker with the VIN.
Look at the frame or chassis of your Hummer H1; the VIN might be stamped onto the frame itself, visible when you look under the vehicle.
Review your Hummer H1’s insurance cards or policies, as well as its title or registration documents, where the VIN is usually recorded.
Inspect the vehicle’s engine block, as the VIN is sometimes stamped onto the engine of your 2003 Hummer H1. 6. If applicable, examine the rear wheel well above the tire. On some vehicles, the VIN might be found in this area, although this location might be less common for the 2003 Hummer H1.

What info can a 2003 Hummer H1 VIN reveal?

Model Year: The VIN can reveal the vehicles model year being the year 2003, providing insights into the age and potential market value of the vehicle.
Body Class and Type: The VIN decodes the vehicle as a Multipurpose Passenger Vehicle, falling into the Truck category, highlighting its versatile design and functionality.
Engine Details: The VIN encodes key engine specifications, such as a 6.5 L displacement, a V-Shaped engine configuration, and an 8-cylinder GEP engine, offering insights into the vehicle’s power and performance capabilities.
Fuel Efficiency and Type: The VIN identifies the vehicle as having a Diesel fuel type, possibly complemented by a turbo feature for enhanced performance, though actual fuel efficiency may vary based on driving conditions.
Gross Vehicle Weight Rating: The VIN indicates that the vehicle falls into Class 3 of the Gross Vehicle Weight Rating, ranging from 10,001 to 14,000 lb (4,536 - 6,350 kg), providing information about its load-carrying capacity.
Manufacturing Information: The VIN provides manufacturing details, revealing that the vehicle was assembled in Mishawaka, Indiana, in the United States, offering insights into its production location.
Transmission Specifications: The VIN decodes the vehicle as being equipped with a 4-speed Automatic transmission, providing insights into its drivability and performance characteristics, though actual performance may vary based on usage.

Don’t have your 2003 Hummer H1’s VIN handy? Try our license plate lookup instead!

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Sample VIN Decode Report for a 2003 Hummer H1

Vehicle Spec	Value
Body Class	Truck
Displacement (CC)	6500.0
Displacement (CI)	396.65433661575
Displacement (L)	6.5
Doors	2
Engine Configuration	V-Shaped
Engine Manufacturer	GEP
Engine Number of Cylinders	8
Fuel Type - Primary	Diesel
Gross Vehicle Weight Rating From	Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)
Model	H1
Model Year	2003
Plant City	Mishawaka
Plant Company Name
Plant Country	United States
Plant State	Indiana
Series	1 1/4 ton K-SERIES
Steering Location	Left-Hand Drive (LHD)
Transmission Speeds	4
Transmission Style	Automatic
Turbo	Yes
Vehicle Descriptor	137FA553*3E
Vehicle Type	Multipurpose Passenger Vehicle
Sample_VIN	137FA55313E206980