4S4Subaru multipurpose passenger vehicles
Held by Subaru of America, Inc · registered in the United States
WMI 4S4's rules start at model year 1990 and have no end year. Electrified versions appear in its rules: hybrid. Of its 13 models, 10 also appear under other Subaru WMIs.
Models in the decoding rules, by model year
- Justy1990–1994
- Legacy1990–2015
- Loyale1990–1994
- XT1990–1991
- XT61990–1991
- SVX1992–1994
- Impreza1993–1994
- Baja2003–2006
- Outback2005–2025
- B9 Tribeca2006–2014
- Ascent2019–2027
- Crosstrek2024–2027
- Forester2026–2027
Where the rules place assembly
Plant countriesUnited States, Japan
Plant locations namedLafayette; Gunma; Ota
Bodies and power
Body classesSUV, Sedan, Hatchback, Wagon, Coupe, Pickup
Primary fuelsGasoline
Compared with the closest code, 4S3
4S3 is held by Subaru of America, Inc. Measured by the overlap of the two model lists, it is the code closest to 4S4.
Models in both8
Only under 4S4Baja, B9 Tribeca, Ascent, Crosstrek, Forester
Model years4S4: 1990–open · 4S3: 1990–2025
Plant countries only for 4S3India
Body classes only for 4S4Pickup
Vehicle type4S4: multipurpose passenger vehicles · 4S3: passenger cars
Other codes held by Subaru of America
| Code | Vehicle type | Makes | Model years | Models |
|---|---|---|---|---|
| 4S3 | passenger cars | Subaru | 1990–2025 | 8 |
Subaru under other holders
Models named in each code's rules
Source: NHTSA vPIC, October 2026 release (database updated October 17, 2026). How the figures are counted: How the catalog is read.