What is the phone number for enterprise customer service? Customer Service. 1-855-266-9565; Roadside Assistance. 1-800-307-6666; Enterprise Plus® Member Services. 1-866-507-6222; Customers with Disabilities. 1-866-225-4284 How do i contact enterenterprise fleet management? Enterprise Fleet Management. 1-877-233-5338; Maintenance Program Information. 1-800-325-8838 How to contact enterprise for car rental questions? Start A Reservation Answers to general car rental questions Enterprise Car Rental Reservations 1-855-266-9289