Factory build sheet
2021 Chevrolet Blazer RS
Build 3GNKBKRS-M · 3.6L 6cyl · All-wheel drive · Sport Utility Vehicle (SUV)
VIN positions 1 through 8 read 3GNKBKRS 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 3GNKBKRS and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 8,629 of them.
- Decoded Jul 7, 2026
- 8,629 known VINs
- 182 listed for sale now
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
- All-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
- Adaptive cruise control Optional
- Blind spot warning Standard
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.
What this build asks today
Asking prices of live dealer listings decoded to this exact configuration — narrower than the trim-level figure, because every car counted here shares the same engine, transmission and drivetrain.
$26,157 median asking price · 289 listings · as of Aug 30, 2026
Low 2% of listings $19,799 Top 2% of listings $31,998
The same build, other model years
Chevrolet used the VIN pattern 3GNKBKRS for 6 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
- 2019 Premier 3.6L 6cyl Sport Utility Vehicle (SUV) · 1,986 vehicles code K $20,510
- 2020 RS 3.6L 6cyl Sport Utility Vehicle (SUV) · 5,008 vehicles code L $22,663
-
2021 You are here code M $26,157
- 2022 RS 3.6L 6cyl Sport Utility Vehicle (SUV) · 7,197 vehicles code N $27,586
- 2024 RS 3.6L 6cyl Sport Utility Vehicle (SUV) · 7,173 vehicles code R $35,393
- 2026 RS 3.6L 6cyl Sport Utility Vehicle (SUV) · 2,781 vehicles code T $53,609
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 | KBKRS | 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.
8,629 vehicles carry this build
Every VIN we have decoded to 3GNKBKRS-M shares the specification above.
- 8,629 Known VINs
- 182 Listed for sale now
- 289 Priced listings
- $26,157 Median asking
Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.
Neighboring configurations
Other factory configurations of the Blazer, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.
- 2021 Premier 2L 4-cyl · Sport utility vehicle suv mult · AWD 87 vehicles · $26,948 median
- 2021 Premier 3.6L 6-cyl · Sport utility vehicle suv mult · AWD 1,002 vehicles · $25,083 median
- 1992 4.3L 6-cyl · Sport utility vehicle suv mult · 4WD 34 vehicles
- 1992 K1500 5.7L 8-cyl · Sport utility vehicle suv mult · 4WD 168 vehicles · $9,000 median
- 2022 RS 3.6L 6-cyl · Sport utility vehicle suv mult · FWD 5,548 vehicles · $25,993 median
Keep going
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.
Prices are asking prices from 289 live dealer listings decoded to this build , last updated August 30, 2026 . They are what sellers ask, not what buyers paid.
Vehicle counts come from the 8,629 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.