Offers exclude vehicles used for commercial use and oversized vehicles. This offer is made solely by AAA Northern California, Nevada & Utah (“AAA NCNU”, “we”, “our”, or “us”). Offers are only valid at AAA NCNU Owned and Operated Auto Repair Centers in California and may not be combined with any other offers. Must present coupon at time of service; one coupon per customer. We have the right to extend, terminate, suspend, or modify the offer at any time without notice. All offers are subject to change and may expire without notice. 1. Must purchase $100 or more in service and parts to receive $20 off. Offer excludes Member or customer-supplied parts. Offer not valid on oil changes, tire services, or battery service. Does not include tax or other fees.