Short answer: by removing the fear of being overcharged before the customer ever calls. Transparent information, real reviews and visible credentials do more than any advert.
The customer is anxious, not price shopping. Most people cannot evaluate the work. They are asking: will this shop be honest with me. Everything you publish should answer that.
Say what you specialise in. "We do everything" reads as nobody's specialist. Naming makes and services makes you the obvious choice for those searches.
Reviews carry more weight here than almost anywhere. A recent review from a local name that mentions honest pricing is worth more than any slogan.
Publish the things that reduce fear. Certifications, warranty terms, whether you provide estimates before work. A shop that is upfront in its listing reads as a shop that will be upfront at the counter.
Where the plans fit. Independent shops usually start on Small Business. Shops with multiple bays or locations, or that rely on steady lead flow, move to Professional Services for stronger placement and the verified badge. See current plan prices.
A quiet winner: a member deal on a diagnostic or an oil change. It is a low-risk way for a nervous customer to try you once, and the relationship starts there.