State lemon law · checked October 23, 2026
Verified against the statute / official state publicationSDCL ch. 32-6D (§§32-6D-1–32-6D-12)
| Presumption window | Two stages: at least one repair attempt must fall inside the lemon law rights period (1 year / 12,000 miles), and the full pattern must complete inside 2 years / 24,000 miles. |
|---|---|
| Same defect | 4+ repair attempts |
| Days out of service | 30+ calendar days |
The presumption is the set of numbers that shifts the burden to the manufacturer. A claim can exist outside the presumption — it is a shortcut, not the whole road. Read why.
South Dakota allows a reasonable allowance for use with no formula we could source to the statute, so this checker prints none rather than invent one.
Send a certified letter describing the vehicle, the defect, and every previous attempt (who made it and when). The manufacturer must respond within 7 days and then has 14 days to resolve the problem — the statutory final attempt.
Dispute route: A qualified manufacturer's informal dispute procedure may have to be used first.
Attorney's fees: South Dakota provides attorney's fees to a prevailing consumer.
Claims must be filed within 3 years following original delivery.
| New vehicles | Covered |
|---|---|
| Leased vehicles | Not covered |
| Used vehicles | Covered in defined situations — see notes |
| Motorcycles | Covered in defined situations — see notes |
| RV / motor home | Not covered |
Your repair-log tracker, the South Dakota notice letter, the buyback worksheet on South Dakota's formula, and your deadline calendar.
Checked October 23, 2026. Laws change; if your claim is close to a line, verify the current statute or ask a lawyer in South Dakota. This page is information, not legal advice.