AutoZone on Mid Rivers Mall Dr in St Peters, MO is a leading retailer of auto parts, maintenance items, and car accessories. The store provides helpful service, with specific staff members noted for going above and beyond to assist customers. Employees help with a variety of tasks, including running diagnostic tests for check engine lights, resetting computer issues, changing blinker bulbs, replacing batteries, and suggesting parts like air filters and car seat covers. This assistance saves customers money and helps vehicles pass inspection. However, the location appears to have a high turnover rate, with different young staff members frequently observed. The manager is reported as being helpful. Customers express gratitude for the kind and compassionate service received, especially during difficult times, and many state they will return for future parts and help.