When Is a Car a Lemon in Connecticut?

A car is a “lemon” under Connecticut law (§ 42-179(d)) when:

1. The vehicle has a nonconformity that substantially impairs its use, value, or safety.
2. The defect has not been fixed after a reasonable number of repair attempts.
3. The thresholds are met within the 2-year / 24,000-mile Rights Period.

The two thresholds

Under § 42-179(d):

• 4 or more repair attempts for the same nonconformity, OR
• 30 or more cumulative days out of service for any nonconformity.

See our repair-attempt presumption article.

What “substantially impair” means

Connecticut courts interpret “substantially impair” broadly:

• Use — the vehicle can’t be driven safely or reliably.
• Value — the defect significantly diminishes resale value.
• Safety — the defect creates a safety risk.

A defect can qualify on any one of these prongs.

Examples that qualify

• Transmission shudders / slips repeatedly.
• Engine stalls in traffic.
• Brakes fail / pulse violently.
• Electrical warning lights / phantom drain.
• Steering wander or EPS failure.
• Infotainment locks up or won’t boot.
• EV charging won’t work.
• Battery degradation beyond manufacturer’s curve.

Examples that typically DON’T qualify

• Cosmetic issues (paint, trim — unless safety-related).
• Wear items (tires, brakes pads after normal use).
• Consumer-modified parts.
• Issues outside the Rights Period.

The written notice requirement

§ 42-179(e) requires written notice to the manufacturer with a final repair opportunity before Lemon Law applies. Send via certified mail. See our how to file guide.

Bottom line

If your CT vehicle has a defect that substantially impairs use, value, or safety AND has been to the manufacturer’s authorized dealer 4+ times OR 30+ days OOS within the 2-year / 24,000-mile Rights Period, you likely have a Lemon Law case. Get a free attorney review.

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