A warranty expiration date is not the same as a lawsuit deadline. If you are unsure about timing, ask an attorney to check your dates rather than waiting for another repair.
There is no safe one-line deadline for every claim
California's vehicle-warranty procedures changed in 2025. A separate procedural framework applies to certain actions against manufacturers covered by Code of Civil Procedure § 871.20. Whether that framework applies must be checked before using its deadlines or notice provisions.
For actions covered by that framework, § 871.21 states a one-year period after the applicable express warranty expires and a six-year outside limit from original delivery. The statute also has tolling rules, which can pause the clock in specified circumstances. Do not apply these figures automatically to every manufacturer, vehicle, or legal claim.
Notice and filing are separate questions
For covered actions, § 871.24 sets out a pre-suit notice process relevant to seeking civil penalties. Its content, delivery method, timing, and the manufacturer's response matter. A routine service request or phone call should not be assumed to satisfy a formal notice requirement.
Different claims or manufacturers can follow different rules. An attorney needs to check which rules apply before calculating your last day to file. Please seek advice promptly rather than relying on this guide for a deadline.
Bring these dates to an attorney
Keep envelopes, tracking records, confirmation emails, and copies of what was sent. Tell the attorney about every prior demand or claim, even if you believe it was informal or unsuccessful.
- Original vehicle delivery and your purchase or lease date, if different.
- Warranty start and expiration dates, including any relevant mileage limit.
- First symptom and first presentation for repair of that concern.
- Every period the vehicle was out of service.
- Written notices, dispute-resolution filings, decisions, offers, and response deadlines.
What to do while records are being collected
Contact the firm with the information you have and identify any known deadline in your first message. Do not wait for one more appointment or a complete document packet before asking for advice. The firm must agree to representation in writing; submitting an inquiry does not mean a deadline has been reviewed or a case has been filed.