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Missouri · Article Updated May 24, 2026

Used Vehicles Under Missouri Lemon Law

Used vehicles are NOT covered by Missouri's § 407.560 Lemon Law. Magnuson-Moss, MMPA (post-SB 591), and UCC remain available.

Missouri’s Lemon Law (§ 407.560) does NOT cover used vehicles. Missouri relies on Magnuson-Moss + MMPA + UCC for used-vehicle defect cases.

Why used vehicles are excluded

§ 407.560(7) defines a covered vehicle as a “new motor vehicle” — explicitly excluding used vehicles.

Alternative protections for used-vehicle buyers

For used-car defect cases, Missouri consumers rely on:

  • Magnuson-Moss Warranty Act — applies where factory or dealer warranty is in place. 4-year UCC SOL.
  • MMPA (§ 407.010 et seq.) — applies to deceptive used-car practices. 5-year SOL, post-SB 591 pleading required.
  • UCC § 400.2-313 / § 400.2-314 — express and implied warranties under Missouri UCC. 4-year SOL.
  • Common-law fraud — for willful concealment.

MMPA for used-vehicle deceptive practices (post-SB 591)

MMPA covers used-vehicle deceptive practices:

  • Misrepresentation of vehicle condition / history.
  • Failure to disclose salvage history, prior accidents, odometer rollback, known defects.
  • Deceptive warranty representations by dealer.
  • F&I deceptive add-ons.

Punitive damages + mandatory § 407.025(1) fees + 5-year SOL — but post-SB 591 ascertainable loss specificity required.

”As-is” sales

Missouri permits “as-is” used-vehicle sales — typically with disclaimer in the buyer’s guide.

Practical advice for used-car buyers

  • Get pre-sale inspection by independent mechanic.
  • Check Carfax / AutoCheck for prior damage.
  • Confirm warranty in writing — factory or dealer.
  • Save the buyer’s guide required by FTC.
  • Document any defects immediately.
  • Document ascertainable loss specifically for MMPA pleading.

Bottom line

Missouri’s Lemon Law doesn’t cover used vehicles. Used-car claims rely on Magnuson-Moss + MMPA + UCC. MMPA’s 5-year SOL provides solid runway, but post-SB 591 pleading requires ascertainable loss specificity.

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