HPI Racing assumes responsibility for it products and will repair or replace any defective product at its sole discretion. HPI believes it is solely responsible for its products, therefore, Hobby Etc., Inc. will not be involved in any replacements. Please contact HPI directly.<br><br>Contact HPI Customer Service for any product related problems at 949-753-1099. HPI Customer Service hours are Monday - Friday 8:00 to 4:30 PST. The HPI website, www.hpiracing.com, has information and frequently asked questions about HPI products.