How to decode a 2001 GMC Sonoma VIN

Characters 1-3 of a 2001 GMC Sonoma VIN

A World Manufacturer Identifier (WMI) is a unique code assigned to every vehicle manufacturer worldwide, forming the first three characters of the Vehicle Identification Number (VIN). Each WMI provides information about the manufacturer, including the vehicle type and the location of manufacture. For the 2001 GMC Sonoma, the WMI “1GT” indicates that it is a truck produced by General Motors LLC in the United States, specifically in Warren, Michigan. This code is an essential tool in identifying the origin and type of vehicle, offering a universally recognized standard for automotive identification. Through this system, the 2001 GMC Sonoma is accurately categorized, reflecting its manufacture by General Motors LLC, a major American automotive company.

List of WMI Codes for a 2001 GMC Sonoma

WMI: 1GT

Model Years Covered: 1991-2004
Example VIN: 1GTCS14W518221625
Manufacturer Name: General Motors LLC
Vehicle Type: Truck
City: Warren
State or Province: Michigan
Country: United States

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 2001 GMC Sonoma 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 2001 GMC Sonoma:

Known VDS for a 2001 GMC Sonoma
CS14W	CS19W	DT13W	DT19W	CS145	CS195	CT19W

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 2001 GMC Sonoma 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 2001 GMC Sonoma VIN — Year Code

Year Code	Year
1	2001

11th Character in the 2001 GMC Sonoma VIN — Plant Code(s)

Known 2001 GMC Sonoma Assembly Factory VIN Code(s)

Plant Code	Plant City	Plant State	Plant Country	Plant Company Name	Example VIN
8	Shreveport	Louisiana	United States	Gm Truck Group	1GTCS14W518221625
K	Linden	New Jersey	United States	Gm Truck Group	1GTCS19W51K126218

VIN Characters 12 - 17 of a 2001 GMC Sonoma

The final 6 characters in a 2001 GMC Sonoma’s 17-digit VIN are its serial number, which will be unique to every vehicle.

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How to find a 2001 GMC Sonoma’s VIN?

Locating the VIN number on your 2001 GMC Sonoma is key for identification. Here’s how to find it:

Look at the dashboard on the driver’s side of your GMC Sonoma 2001, near where it meets the windshield, as the VIN is commonly displayed there and can be seen from outside the vehicle.
Open the driver’s side door and examine the door jamb area. The VIN can usually be found on a sticker or plate where the door latches when closed.
Check the frame of the truck, specifically on the area where the door from the driver’s side attaches to the vehicle body, as the VIN might be stamped onto the frame.
Look under the hood of your GMC Sonoma 2001 for a VIN plate that might be fixed to the engine block, firewall, or on other components within the engine bay.
Inspect the vehicle registration documents, insurance cards or the title for your 2001 GMC Sonoma, as the VIN will be printed on these official documents.

What info can a 2001 GMC Sonoma VIN reveal?

Model Year: The VIN can reveal the vehicles model year being the year 2001, providing insights into the age and potential market value of the vehicle.
Vehicle Type and Body Class: It can identify the vehicle’s type and body class, such as possibly a Truck, potentially a Pickup, offering insights into the vehicle’s design and structure.
Engine Details: Details about the engine, including potentially V-Shaped configuration, possibly 4.3 liters or 4300 CC displacement, and possibly manufactured by WRN, are encoded within the VIN.
Drive Type and Doors: The VIN might reveal the drive type, like possibly 4x2, and a chance of the vehicle possessing 2 doors.
Manufacturing Location: It often includes information about the manufacturing location, indicating a possibility of the vehicle being assembled in Shreveport, Louisiana, United States by GM Truck Group.
Gross Vehicle Weight Rating: The VIN can hint at the vehicle’s weight class, possibly being Class 1C: 4,001 - 5,000 lb (1,814 - 2,268 kg).
Safety and Trim Details: While not directly conveying safety features, the VIN can possibly outline specific trim details like “1/2 ton,” which may correlate with certain standard safety and feature packages for that model.

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Sample VIN Decode Report for a 2001 GMC Sonoma

Vehicle Spec	Value
Body Class	Pickup
Brake System Type	Hydraulic
Cab Type	Extra/Super/Quad/Double/King/Extended
Displacement (CC)	4300.0
Displacement (CI)	262.40209960734
Displacement (L)	4.3
Drive Type	4WD/4-Wheel Drive/4x4
Engine Configuration	V-Shaped
Engine Manufacturer	WRN
Engine Model	L35
Engine Number of Cylinders	6
Gross Vehicle Weight Rating From	Class 1D: 5,001 - 6,000 lb (2,268 - 2,722 kg)
Model	Sonoma
Model Year	2001
Other Engine Info	CPI, 90 Degrees
Plant City	Linden
Plant Company Name	GM Truck Group
Plant Country	United States
Plant State	New Jersey
Trim	1/2 ton
Vehicle Descriptor	1GTDT19W*1K
Vehicle Type	Truck
Sample_VIN	1GTDT19W11K132034