D = 1983 and 2013
A VIN with D in position 10 was built as a 1983 and 2013 model year vehicle.
Example VIN with D at position 10 → 1983 and 2013 model year
What Code "D" Means
Under NHTSA's VIN standard (effective since 1981), position 10 of every VIN encodes the model year using a single letter or digit from a fixed table. The letter D maps to the model years 1983 and 2013.
Ambiguous code — two possible years
The code D repeats every 30 years. A VIN with this code could be from 1983 or 2013. To determine the actual year, check the NHTSA full decode (which uses the full VIN to confirm the year), the vehicle's title, or the manufacturer's label on the door jamb.
Model Year Code Table — All Codes
Decode a 1983 and 2013 VIN
Enter a complete 17-character VIN to see the full breakdown.