- Characters 1-3 of a 2021 GMC Sierra VIN
- List of WMI Codes for a 2021 GMC Sierra
- Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 2021 GMC Sierra VIN
- Character 9 is the "check digit" in a 2021 GMC Sierra VIN.
- 10th Character in the 2021 GMC Sierra VIN — Year Code
- 11th Character in the 2021 GMC Sierra VIN — Plant Code(s)
- Known 2021 GMC Sierra Assembly Factory VIN Code(s)
- VIN Characters 12 - 17 of a 2021 GMC Sierra
- How to find a 2021 GMC Sierra's VIN?
- What info can a 2021 GMC Sierra VIN reveal?
- Sample VIN Decode Report for a 2021 GMC Sierra
How to decode a 2021 GMC Sierra VIN
Characters 1-3 of a 2021 GMC Sierra VIN
World Manufacturer Identifiers (WMIs) serve as unique codes assigned to every vehicle manufacturer, pinpointing key details about the vehicle, such as its make, model, and place of production. For the 2021 GMC Sierra, the WMI indicates that these trucks are manufactured by General Motors LLC, based in Warren, Michigan, United States. Specifically, the WMIs “3GT” and “1GT” signify trucks that fall under the General Motors umbrella, confirming their identity as GMC Sierras. These codes are integral in deciphering the vehicle’s origin, ensuring that each truck can be accurately traced back to its manufacturer. Thus, the WMI not only validates the authenticity of a 2021 GMC Sierra but also provides critical information regarding its manufacturing lineage.
List of WMI Codes for a 2021 GMC Sierra
WMI: 3GT
- Model Years Covered: 2006-2024
- Example VIN: 3GTP8DET0MG123137
- Manufacturer Name: General Motors LLC
- Vehicle Type: Truck
- City: Warren
- State or Province: Michigan
- Country: United States
WMI: 1GT
- Model Years Covered: 1989-2024
- Example VIN: 1GT58MEY8MF153040
- 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 2021 GMC Sierra VIN
These characters correspond to components like:
- Engine type
- Transmission
- Model or trim
- Body style
- Gross vehicle weight range
Below find the most popular vehicle descriptor codes for a 2021 GMC Sierra:
| 100 Most Common VDS for a 2021 GMC Sierra | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| P8DET | 58MEY | 58NEY | P8AEH | 49VEY | 38REY | 49REY | P9EED | V9CED | 49PE7 |
| V9BET | U9BED | P8DED | U9FEL | P8BEK | P8CED | P8AEF | U9DET | 48LE7 | P8FED |
| 59TEY | 38LEY | 48PEY | U9AEF | R9DEL | 08LE7 | 48NE7 | U8DED | N9AEF | 49MEY |
| U9DEL | 59LEY | 59SE7 | 49WE7 | 19LE7 | 39LEY | P8CET | U9FET | U8CED | P8AEK |
| P9EEL | N9AEH | R9EED | R8BEK | R9CEK | R9AEH | 48PE7 | 59MEY | 49UEY | 49SE7 |
| P9GEK | 49EET | U9DED | R8CEK | 19NE7 | U9CED | U9FED | R9AEF | 39TE7 | 19RE7 |
| 58ME7 | R9CED | 59NE7 | 58NE7 | R8AEH | P8BED | V9BED | P9BEK | 48MEY | R8AEF |
| 29MEY | P9AEH | 49WEY | 49PEY | 39TEY | R8CED | 48LEY | R8AEK | N8AEH | 39MEY |
| 49FET | 48RE7 | 19PEY | P9CEK | 49LEY | 09LE7 | 59SEY | V9CET | P8BET | R9AEK |
| R8BET | 49NEY | R9GEK | 48NEY | 39SEY | 19MEY | 58LE7 | U9EET | 59NEY | U9BET |
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 2021 GMC Sierra 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 2021 GMC Sierra VIN — Year Code
| Year Code | Year |
|---|---|
| M | 2021 |
11th Character in the 2021 GMC Sierra VIN — Plant Code(s)
Known 2021 GMC Sierra Assembly Factory VIN Code(s)
| Plant Code | Plant City | Plant State | Plant Country | Plant Company Name | Example VIN |
|---|---|---|---|---|---|
| F | Flint | Michigan | United States | 1GT58MEY8MF153040 | |
| G | Silao | Guanajuato | Mexico | 3GTP8DET0MG123137 | |
| Z | Fort Wayne | Indiana | United States | 1GTP9EED0MZ107032 |
VIN Characters 12 - 17 of a 2021 GMC Sierra
The final 6 characters in a 2021 GMC Sierra’s 17-digit VIN are its serial number, which will be unique to every vehicle.
Check your GMC Sierra’s VIN below:
How to find a 2021 GMC Sierra’s VIN?
Locating the VIN number on your 2021 GMC Sierra is key for identification. Here’s how to find it:
- Look at the dashboard on the driver’s side of your GMC Sierra 2021, as the VIN is typically visible through the windshield on a small plate near where the dashboard meets the glass.
- Open the driver’s side door and inspect the door jamb area; the GMC Sierra 2021 VIN should be located on a label or sticker where the door latches shut.
- Check the frame of the vehicle; on many trucks, including the GMC Sierra 2021, the VIN can be found stamped on the frame near the front suspension or within the wheel well.
- Examine the engine block, as the VIN is sometimes stamped onto parts of the engine itself in vehicles like the GMC Sierra 2021.
- Look in your GMC Sierra 2021 owner’s manual or the maintenance book; the VIN is often recorded in these documents when the vehicle is purchased or serviced.
- If you cannot find the VIN in these locations, check for a VIN plate or sticker in the trunk under the spare tire, as some manufacturers place it there.
What info can a 2021 GMC Sierra VIN reveal?
- Model Year: The VIN can reveal the vehicles model year being the year 2021, providing insights into the age and potential market value of the vehicle.
- Body Type and Drive Type: A VIN can specify the body type, such as a Pickup, and the drive type, like a 4x2 drive type, offering detailed insights into the vehicle’s design and structure.
- Engine Specifications: Important engine details, such as a 3.0-liter, In-Line 6-cylinder diesel engine with turbocharging, can be encoded within the VIN, shedding light on the vehicle’s performance capabilities.
- Safety Features and Air Bag Locations: The VIN often includes safety equipment information, possibly indicating the presence of standard safety features like Anti-lock Braking System (ABS) and curtain airbags across all rows, providing insights into the level of protection the vehicle offers.
- Fuel Type and Transmission: Information about the primary fuel type, which in this example is diesel, and details on the transmission, such as being an 8-speed automatic, are typically found, giving potential buyers an idea of the vehicle’s fuel efficiency and driving experience.
- Advanced Technology Options: It may also indicate the availability of advanced technology options such as Adaptive Cruise Control, Blind Spot Warning, and Lane Keeping Assistance, highlighting whether they are standard, optional, or not available, offering insights into the available driving aids and technological conveniences.
- Manufacturing Details: Additionally, a VIN can provide manufacturing details like the plant city, country, and state, possibly pointing to specific manufacturing locations, adding to the historical and geographical context of the vehicle.
Don’t have your 2021 GMC Sierra’s VIN handy? Try our license plate lookup instead!
Sample VIN Decode Report for a 2021 GMC Sierra
| Vehicle Spec | Value |
|---|---|
| Adaptive Cruise Control (ACC) | Optional |
| Anti-lock Braking System (ABS) | Standard |
| Auto-Reverse System for Windows and Sunroofs | Standard |
| Automatic Crash Notification (ACN) / Advanced Automatic Crash Notification (AACN) | Standard |
| Axles | 2 |
| Backup Camera | Standard |
| Blind Spot Warning (BSW) | Optional |
| Body Class | Pickup |
| Brake System Type | Hydraulic |
| Cab Type | Crew/Super Crew/Crew Max |
| Crash Imminent Braking (CIB) | Optional |
| Curtain Air Bag Locations | All Rows |
| Daytime Running Light (DRL) | Standard |
| Displacement (CC) | 3000.0 |
| Displacement (CI) | 183.07123228419 |
| Displacement (L) | 3.0 |
| Doors | 4 |
| Drive Type | 4WD/4-Wheel Drive/4x4 |
| Dynamic Brake Support (DBS) | Standard |
| Electronic Stability Control (ESC) | Standard |
| Engine Configuration | In-Line |
| Engine Model | LM2 |
| Engine Number of Cylinders | 6 |
| Forward Collision Warning (FCW) | Optional |
| Front Air Bag Locations | 1st Row (Driver and Passenger) |
| Fuel Type - Primary | Diesel |
| Gross Vehicle Weight Rating From | Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg) |
| Headlamp Light Source | LED |
| Keyless Ignition | Standard |
| Lane Departure Warning (LDW) | Optional |
| Lane Keeping Assistance (LKA) | Optional |
| Model | Sierra |
| Model Year | 2021 |
| Number of Seat Rows | 2 |
| Number of Seats | 5 |
| Number of Wheels | 4 |
| Other Engine Info | CRI, TURBO, VGT, ALUM, CSS50V |
| Other Restraint System Info | AY0 - Active Manual Belts |
| Pedestrian Automatic Emergency Braking (PAEB) | Optional |
| Plant City | Silao |
| Plant Company Name | |
| Plant Country | Mexico |
| Plant State | Guanajuato |
| Rear Cross Traffic Alert | Optional |
| Seat Belt Type | Manual |
| Semiautomatic Headlamp Beam Switching | Optional |
| Series | 1500 AT4 |
| Side Air Bag Locations | 1st Row (Driver and Passenger) |
| Steering Location | Left-Hand Drive (LHD) |
| Tire Pressure Monitoring System (TPMS) Type | Direct |
| Traction Control | Standard |
| Transmission Speeds | 10 |
| Transmission Style | Automatic |
| Turbo | Yes |
| Valve Train Design | Dual Overhead Cam (DOHC) |
| Vehicle Descriptor | 3GT49EET*MG |
| Vehicle Type | Truck |
| Wheel Size Front (inches) | 18 |
| Wheel Size Rear (inches) | 18 |
| Sample_VIN | 3GT49EET7MG207235 |
Decode other Sierra Years
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