There are a number of ways for an auto repair shop to use sms marketing. SMS marketing is also known as mobile marketing or text message marketing. The service is run through a shortcode or a shortened phone number, the number used by TXT180 customers is 77948. As an auto repair shop you will start by choosing a keyword, we recommend something simple like repairs or the name of your shop. Simple words that are easy to spell will leave less room for error and make it easy for your customers to opt-in and be added to your texting list.