Master General Motors Automotive Technician

Job Description

Job Description

GM Master Technician Job Description

A GM Master Technician is a highly skilled automotive professional who specializes in diagnosing, repairing, and maintaining General Motors (GM) vehicles to GM’s exact standards. This role requires extensive training, certification, and hands-on experience, and is often a career milestone in GM’s Certified Service Technician path.

Role Overview

GM Master Technicians are responsible for:

• Performing advanced diagnostics and repairs on complex GM vehicles, including engines, transmissions, electrical systems, brakes, steering, and HVAC.

• Ensuring repairs meet GM’s quality and safety standards using the latest diagnostic tools and technology.

• Maintaining and servicing engine performance, electrical/electronics, and drivetrain systems GM Service Technical College.

• Mentoring and training junior technicians to improve shop performance and customer satisfaction.

Certification & Training

• Achieved through GM Automotive Service Educational Program (ASEP)or GM Service Technical College (STC) training.

• Requires completing Master Technician Certification (MTC)in select mechanical or body areas, often alongside ASE certifications GM Service Technical College.

• Must maintain 100% Service Technical Standards (STS)annually to retain certification GM Service Technical College.

Key Responsibilities

• Conduct comprehensive vehicle inspections and identify root causes of complex issues.

• Use advanced diagnostic scanners, oscilloscopes, and proprietary GM tools .

• Perform quality control checks and ensure compliance with safety and emissions regulations.

• Lead repair workflows and assist in shop operations, including foreman duties in some roles.

• Stay updated on new GM technologies , including hybrid and electric vehicle systems.

Skills & Competencies

• Advanced diagnostics and computer-aided repair techniques.

• Expertise in engine performance, diesel engine performance, transmission servicing, and electrical systems .

• Proficiency in ECU programming and vehicle software updates.

• Strong problem-solving, attention to detail, and communication skills .

• Ability to mentor and train other technicians.