California lemon law defect guide

ADAS & Safety-System Problems

Automatic emergency braking events, lane-assist faults, blind-spot warnings, sensor failures, airbag warnings, and disabled safety features.

What matters

Turn a recurring symptom into a clear repair record.

Warranty claims are evaluated through evidence. Each visit should identify the symptom, conditions when it occurs, mileage, warning messages, diagnostic results, work performed, parts replaced, and whether the problem returned.

Useful details to document

  • Exactly what happened and how often
  • Whether the condition affected control, propulsion, braking, visibility, or occupant safety
  • Dashboard messages, fault codes, sounds, odors, leaks, or vibration
  • Dates, mileage, and total days at the repair facility
  • Whether the dealer duplicated the condition
  • Software updates, parts replacements, and repeat recommendations
“Could not duplicate” is still part of the history.

Ask for a repair order even when no repair is performed. Safely captured video, photographs, timestamps, charging records, roadside-assistance records, and written communications can help document an intermittent problem.

Claim review

Questions we examine

Frequently asked questions

Does this problem automatically make my vehicle a lemon?

No. The existence of a reported condition does not determine eligibility. Warranty coverage, repair attempts, downtime, substantial impairment, and the complete facts must be evaluated.

Do I need an open recall?

No. A recall may be relevant, but California warranty claims are not limited to recalled conditions. Recall status is VIN-specific.

What documents should I send for review?

Repair orders, the purchase or lease agreement, current registration, manufacturer communications, photographs or videos, towing and rental records, and a short chronology are a strong starting point.

Repeated warranty problem?

Let’s evaluate the evidence.

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