Factory build sheet
2018 Chevrolet Sonic Premier
Build 1G1JF6SB-J · 1.4L 4cyl · Front-wheel drive · Hatchback
VIN positions 1 through 8 read 1G1JF6SB and position 10 reads J. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Sonic whose VIN starts 1G1JF6SB and carries J in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 151 of them.
- Decoded Jul 7, 2026
- 151 known VINs
- 2 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
- 1.4 L
- Cylinders
- 4
- Engine model
- LUV - MFI, Variable Valve Timing, ALUM, E85 MAX
- Engine manufacturer
- GME
- Valve train
- Dual Overhead Cam (DOHC)
- Turbocharged
- Yes
- Fuel type
- Gasoline
Drivetrain
- Drive type
- Front-wheel drive
- Transmission
- Automatic
Body & chassis
- Body class
- Hatchback/Liftback/Notchback
- NHTSA body type
- PASSENGER CAR
- Doors
- 4
- Seats
- 5
- Seat rows
- 2
- Manufacturer
- GENERAL MOTORS LLC
Weight rating
- GVWR class
- Class 1
- GVWR
- 6,000 lb or less
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 Optional
- Lane departure 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 1G1JF6SB for 8 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
- 1981 Premier 1.4L 4cyl Hatchback · 62 vehicles code K $14,995
- 2012 LTZ 1.4L 4cyl Hatchback · 310 vehicles code C $6,801
- 2013 LTZ 1.4L 4cyl Sedan · 166 vehicles code D
- 2014 LTZ 1.4L 4cyl Sedan · 44 vehicles code E
- 2015 LTZ 1.4L 4cyl Hatchback · 24 vehicles code F
- 2017 Premier 1.4L 4cyl Hatchback · 262 vehicles code H $9,991
-
2018 You are here code J
- 2020 Premier 1.4L 4cyl Hatchback · 100 vehicles code L
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 | 1G1 | GENERAL MOTORS LLC · World manufacturer identifier |
| 4–8 | JF6SB | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | J | Model year — 2018 |
| 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 2018 Chevrolet Sonic 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 2018 Sonic. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.
151 vehicles carry this build
Every VIN we have decoded to 1G1JF6SB-J shares the specification above.
- 151 Known VINs
- 2 Listed for sale now
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 Sonic, 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.
- 2018 FL 1.8L 4-cyl · Hatchback liftback notchback · FWD 38 vehicles
- 2018 FL 1.8L 4-cyl · Hatchback liftback notchback 324 vehicles · $7,999 median
- 2019 LS 1.4L 4-cyl · Sedan saloon 341 vehicles · $8,995 median
- 2019 LT 1.4L 4-cyl · Hatchback liftback notchback · FWD 32 vehicles
- 1981 Premier 1.4L 4-cyl · Hatchback liftback notchback · FWD 62 vehicles · $14,995 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.
Vehicle counts come from the 151 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.