The dedicated service and parts department of Mossy Toyota operates at 4555 Mission Bay Dr. in Pacific Beach, San Diego, CA 92109, handling maintenance and repairs separately from the main sales floor. The rooftop of the building also houses Mossy Express Wash, offering detail services including engine cleaning, headlamp restoration, and dog hair removal, along with monthly wash subscription plans. This veteran-owned facility opens earlier than the showroom, with service bay hours running Monday through Friday from 7 AM to 5 PM and Saturday from 7:30 AM to 5 PM, closed Sunday. ASE-certified Toyota technicians perform factory-recommended maintenance including oil changes, brake inspections, tire rotations, fluid flushes, and multi-point inspections using genuine OEM Toyota parts. The parts counter stocks original components for the full Toyota lineup and can special-order items that are not in inventory. Online appointment scheduling is available through the Mossy Toyota website, and appointments are recommended to minimize wait times. Customers can also reach the service department directly at (858) 581-4501, a separate line from the sales office. The facility features wheelchair-accessible entrance, parking, and restrooms. Service advisor Richard Carver and technician Piero are frequently mentioned in customer reviews for providing real-time updates and accurate time and cost estimates. Customers waiting on longer service appointments who need to store personal items or seasonal gear can walk next door to Prime Storage at 4595 Mission Bay Dr., where climate-controlled units and vehicle storage are available on flexible month-to-month leases. The service department is part of the broader Mossy Automotive Group, which has maintained its A+ BBB rating and Toyota President's Award streak since 2010.