As of 2015, Autozone offers an online auto repair guide for customers to view. Haynes Online also has an enormous database of auto repair guides for anyone to reference.
Autozone does not require consumers to create a username or password to access its database at the novice level. The site requires the year, make, engine and model of the vehicle to locate information within the auto guide. Consumers may sign up online to receive an auto guide geared towards their cars at the intermediate level at Autzone.com. The site also offers an estimate of costs for parts and accessories if needed.
Haynes Online offers a free guide similar to Autozone's. However, its database is not as large as the one provided by Autozone.