Transmission Defects Under Missouri Lemon Law

Transmission defects are among the most common qualifying nonconformities under Missouri’s Lemon Law (§ 407.567). The Ford Kansas City (Claycomo) plant produces F-150s with 10R80 transmissions — making Ford transmission cases a home-state defendant category.

Common transmission failure modes

• Hard shifts — jolting, clunking between gears.
• Slipping — RPMs climb without acceleration.
• Delayed engagement — pause between shift and movement.
• Total failure — vehicle won’t move.
• CVT-specific — shuddering, whining, premature failure.
• DCT-specific — clutch chatter, hesitation, software glitches.
• Fluid leaks — repeated leaks despite seals being replaced.

Brand-specific patterns

• Ford 10R80 10-speed (Claycomo-built F-150) — F-150, Mustang, Explorer. MO Ford home-state defendant. Harsh shifts, slipping, recurring TCM updates.
• GM 8L90 8-speed (Wentzville-related) — Silverado, Camaro. “Chuggle” complaint.
• Honda CVT — Civic, HR-V, some Accords.
• Nissan / Infiniti CVT — Rogue, Pathfinder, Altima. Class action history.
• Subaru Lineartronic CVT — Outback, Forester.
• VW DSG — multiple model years.
• BMW ZF 8HP — programming-related shift quality complaints.
• Hyundai/Kia DCT — Veloster, Forte.

Ford 10R80 — Missouri home-state focus

Ford’s 10R80 10-speed (Claycomo-built F-150s and others) has produced multiple class actions:

• Harsh 2-3 shift.
• Slipping under load.
• Recurring TCM software updates.
• “Characteristic” defense rejected by Missouri courts.

Strong MO Lemon Law cases against Ford as home-state defendant in W.D. Mo.

Why transmission defects qualify

Transmission failures meet § 407.567 easily because:

1. Substantially impair use — vehicle is undriveable.
2. Substantially impair market value — transmission replacement = 20-30% vehicle depreciation.
3. Safety concern — sudden shifts or stalling in traffic.

Documentation specifics

• Code numbers — transmission DTCs (P0700 series).
• TSBs referenced — manufacturer’s technical service bulletins.
• Fluid replacement — note each fluid service.
• Software updates — note each TCM / PCM reprogram.

Bottom line

Transmission defects almost always qualify under Missouri’s Lemon Law. Ford 10R80 cases against the Claycomo home-state defendant in W.D. Mo. carry particular settlement leverage.

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