Trust is built one repair at a time.
Your manager wants you to recommend a service the car genuinely doesn't need yet.
You over-torque a bolt and snap it off in the head. The job just got four hours longer.
A customer wants to understand the repair, and she can tell when she's being handled.
A customer returns angry about a noise after your repair — with other customers listening.
The part that arrived isn't the right one, but it fits — and the car is promised in an hour.
At the morning board meeting you're asked for an ETA you know you can't hit.
A real feedback conversation. Your responses are scored on tone, accountability, problem-solving, and empathy.