Factory build sheet

2021 Chevrolet Blazer 2LT

Build 3GNKBCRS-M · 3.6L 6cyl · Front-wheel drive · Sport Utility Vehicle (SUV)

VIN positions 1 through 8 read 3GNKBCRS and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.

Every Blazer whose VIN starts 3GNKBCRS and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 1 of them.

  • Decoded Jul 7, 2026
  • 1 known VINs

Factory specification

As filed by Chevrolet with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.

Engine

Displacement
3.6 L
Cylinders
6
Configuration
V-Shaped
Engine model
LGX
Valve train
Dual Overhead Cam (DOHC)
Fuel type
Gasoline

Drivetrain

Drive type
Front-wheel drive
Transmission
Automatic
Forward speeds
9
Brake system
Hydraulic

Body & chassis

Body class
Sport Utility Vehicle (SUV)/Multi-Purpose Vehicle (MPV)
NHTSA body type
MULTIPURPOSE PASSENGER VEHICLE (MPV)
Doors
4
Seats
5
Seat rows
2
Manufacturer
GENERAL MOTORS LLC

Weight rating

GVWR class
Class 2E
GVWR
6,001–7,000 lb

Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.

Driver assistance, as built

  • Forward collision warning Standard
  • Lane departure warning Standard
  • Lane keeping assistance Standard
  • Blind spot warning Optional

Systems the filing does not record are not listed above. Check the window sticker of the exact car before you rely on any single feature.

The same build, other model years

Chevrolet used the VIN pattern 3GNKBCRS for 3 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.

How this VIN pattern is read

A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.

Positions Characters What they encode
1–3 3GN GENERAL MOTORS LLC · World manufacturer identifier
4–8 KBCRS Model, body style, engine and restraint system
9 × Check digit — computed per vehicle, not part of the build
10 M Model year — 2021
11 × Assembly plant
12–17 ×××××× Production sequence number, unique to each vehicle

NHTSA safety ratings

Crash-test results are published per model year and body style, so they cover the 2021 Chevrolet Blazer as a whole rather than this build alone.

Overall

★★★★★ 5 / 5

Frontal crash

★★★★★ 5 / 5

Side crash

★★★★★ 5 / 5

Rollover

★★★★ ★ 4 / 5

1 recall campaign is recorded for the 2021 Blazer. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.

1 vehicles carry this build

Every VIN we have decoded to 3GNKBCRS-M shares the specification above.

  • 1 Known VINs

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Where this data comes from

Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.

Vehicle counts come from the 1 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.