Which procedure is NOT typically performed during a 90,000-mile service?

The procedure that is typically not performed during a 90,000-mile service is the replacement of the A/C compressor. Generally, the 90,000-mile service focuses on routine maintenance that helps ensure that the vehicle continues to run smoothly and efficiently. Tasks performed during this service often include replacing the engine oil, checking fluid levels (such as brake fluid), and inspecting the tires for wear and tread depth.

Replacing an A/C compressor is a more specialized service that is usually only necessary if there is a specific failure or issue with the air conditioning system. This component is not typically included in scheduled maintenance unless a diagnostic indicates a problem. Regular inspections may reveal wear and tear or performance issues, but the compressor itself would not be replaced solely based on mileage unless it has failed or shows significant signs of malfunction. Thus, while engine oil and fluid checks are part of routine service, the A/C compressor replacement represents an unscheduled repair need.