Commercial Vehicles Under the South Dakota Lemon Law
How South Dakota's personal-use rule and 15,000-lb cap affect commercial vehicles — and why Magnuson-Moss and the DTPA carry the load for fleets.
The South Dakota Lemon Law covers vehicles for personal use, and excludes vehicles of 15,000 lbs GVWR or more (§ 32-6D-1(5)). So business-use vehicles and heavy trucks largely fall to Magnuson-Moss and the DTPA.
What’s covered and excluded
- Covered — personal-use vehicles under 15,000 lbs (cars, SUVs, light pickups).
- Excluded — business/commercial-use vehicles, vehicles 15,000 lbs GVWR or more, and motor homes.
The personal-use line and the 15,000-lb cap
South Dakota’s coverage is personal-use focused — a vehicle bought for a business or commercial use falls outside. The weight cap is 15,000 lbs, higher than the common 10,000-lb cutoff, so more heavy-duty personal-use ranch pickups stay in scope, but genuinely commercial trucks and fleets do not.
What fills the gap for commercial vehicles
- Magnuson-Moss — federal warranty claims; § 2310(d)(2) fees (subject to the consumer-product definition).
- South Dakota DTPA — for unfair or deceptive practices in a fleet purchase (actual damages only, no treble, no general fee provision).
- UCC breach-of-warranty (§ 57A-2-314 / -315) — 4-year SOL.
South Dakota commercial-vehicle context
- Ranching, agriculture, and trades run heavy trucks across the state.
- Winter de-icer and rural roads are hard on commercial brake and electrical systems.
- Vast distances drive high mileage and long downtime.
Bottom line
South Dakota covers personal-use vehicles under 15,000 lbs; business-use vehicles, heavier trucks, and motor homes rely on Magnuson-Moss and the DTPA. Get a free case review to assess coverage.
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