The "Lemon Law" presumption is a guide, not an absolute rule. A judge or arbitrator can assume that the manufacturer has had a reasonable number of chances to repair the vehicle if all of the conditions are met. The manufacturer, however, has the right to try to prove that it should have the chance to attempt additional repairs, and the consumer has the right to show that fewer repair attempts are reasonable under the circumstances.

Be sure to check your warranty and owner's manual for instructions. You may be required to directly notify the manufacturer of the problem(s). It is a good idea to send your written notice to the manufacturer at the address shown in the warranty or owner's manual by certified mail, return receipt requested so that you have proof that your letter was received. Keep a copy of all correspondence.

If the manufacturer maintains a state-certified arbitration program, the consumer must submit the warranty dispute to the arbitration program before the consumer can take advantage of the presumption in court. Arbitration is an alternative to court proceedings. The consumer may assert the presumption during arbitration. Information about any arbitration should be described in the warranty or owner's manual.

Not every manufacturer maintains a state certified program. You should check with the Department of Consumer Affairs' Arbitration Certification Program at (800) 952-5210 or on the Internet at  You can also ask for the department's free pamphlet that explains more about arbitration, "Lemon Aid for Consumers."