U.S. based customers with questions about ALLDATA Pro should call ALLDATA customer service at 1-800-859-3282. Customers can also use the support email service available on the company's website. Users with a login can access a community diagnostic portal where technicians can ask questions to ALLDATA specialists. The company headquarters are located in California and support services are open from 5:30 am to 5:00 pm, Monday to Friday, based on Pacific Time Zone.

The ALLDATA customer service number for American customers is 1-800-859-3282. Customers wishing to contact a product support agent need to select extension 2 after dialling the number. The extension for billing support is 3, and 4 is for account support and upgrades. Selecting 5 brings you to the Training Options support department, which deals with ALLDATA online classes and certification programs. Email support is available for both DIY and professional customers. The ALLDATA website provides two online forms for each category of customer in their Contact Us section.

ALLDATA customer support offices are closed on national holidays such as New Year’s Day, Memorial Day, Independence Day, Thanksgiving and Christmas. The company headquarters are based in 9650 West Taron Drive, Suite 100, Elk Grove, California 95757. However, customers who need to send general payments to the company should send their correspondence to ALLDATA PO Box 848379, Dallas, TX 75284-8379.