CHOICE Magazine's CEO Alan Kirkland says consumers should not be required to sign a nondisclosure agreement when making warranty claims against car dealers Two-thirds of new car buyers have experienced problems with their vehicles in the first five years of use, with some struggling to use their legal rights to a repair, refund or replacement. A Choice survey found while most affected owners were able to get their car fixed, an "alarming" 15 per cent were unable to resolve the problem, despite warranties, insurance and consumer guarantees to repair, refund or exchange if a product is not of an acceptable quality.