FL findlemonlaw.com
Missouri · Article Updated May 24, 2026

The Manufacturer Denied My Missouri Lemon Law Claim — Now What?

What to do when the manufacturer denies your claim — proceed to BBB Auto Line or court action with MMPA + Magnuson-Moss.

Manufacturer denial is common and does NOT end your Missouri Lemon Law case.

Common denial reasons

  • “Not a covered defect.”
  • “Defect cannot be reproduced.”
  • “Outside warranty / Rights Period.”
  • “Owner caused / modified.”
  • “Not enough repair attempts.”

Step 1 — Document the denial

  • Save the denial letter / email.
  • Note the denial reasons.
  • Note the customer-relations case number.

Step 2 — Verify your thresholds

Confirm you’ve met § 407.567 thresholds:

  • 4 attempts on same nonconformity, OR
  • 30 cumulative working days OOS.

Plus within the 1-year Rights Period.

Step 3 — File BBB Auto Line

If denied by manufacturer, file with BBB Auto Line:

  • $0 filing fee.
  • Decision in 40 days.
  • Binding on manufacturer if consumer accepts.

Step 4 — Or file court action

For cases with MMPA exposure or after rejecting BBB:

  • Missouri Circuit Court or D. Mo. federal court.
  • Parallel MMPA + Magnuson-Moss + Lemon Law claims.
  • Mandatory § 407.579 + § 407.025(1) + § 2310(d)(2) fees.
  • MMPA punitive damages exposure (post-SB 591 pleading).

Step 5 — Get an attorney

For court action, attorney representation is essentially free under the triple fee-recovery basis.

Bottom line

Denial doesn’t end the case. The 1-year Lemon Law window may be running — but MMPA 5-year SOL and Magnuson-Moss 4-year SOL provide solid backstop.

Related

Think you've got a lemon?

Compare your situation to your state's requirements — and connect with a vetted lemon-law attorney for a free case review.