Great Service Starts Here

General Motors is committed to making the customer experience a key driver of why consumers choose to purchase GM products and services. That commitment includes ensuring that our dealerships have well-trained, knowledgeable technicians.


ASE Certification for GM Dealership Employees

ASE Certification, when combined with GM’s Service Training Standards (STS), helps instill customer confidence and helps guarantee that GM’s dealer technicians have and maintain the necessary skills to "Fix It Right the First Time."


ASE delivers these benefits:

  • ASE is an independent, non-profit organization dedicated to improving the quality of automotive service and repair through the voluntary testing and certification of automotive professionals.
  • ASE Certification is a valuable yardstick by which to measure the knowledge and skills of individual employees as well as the commitment to quality of the repair facility employing ASE Certified professionals.
  • By displaying ASE Certification and GM STC training accomplishments, you instill customer confidence in your dealership and support GM Certified Service messaging.

Which ASE Certifications Do I Need?

Service Training Standards (STS): GM worked with dealers to develop a methodology that aligns service training with technical training goals to enable technicians to deliver a truly exceptional service experience for customers. The following chart identifies the Service Training Standards (STS) category and the corresponding ASE Certifications to meet GM STS requirements, GM Master Technician Certification, and GM World Class Technician status in the Mechanical and Body Work categories.

Mark of Excellence (MoE): The updated Mark of Excellence program includes new opportunities for technicians, as well as parts consultants, service consultants, bodyshop consultants, managers, and other service personnel. The second chart below shows the required ASE tests related to each job type.

Required ASE Certification to Meet:
GM STS Mechanical Category GM STS Requirements GM Master Technician Certification GM World Class Technician
Engine Repair A1 A1 A1
Automatic Transmission A2 A2 A2
Manual Drivetrain and Axle A3 A3 A3
Steering and Suspension A4 A4 A4
Brakes A5 A5 A5
Electrical/Electronics A6 A6 A6
Heating, Ventilation and Air Conditioning A7 A7 A7
Engine Performance A8 A8 and L1 A8 and L1
Diesel Engine Performance A9 A9 A9
Mechanical/Electrical Repair B5 or ASE Master Auto Certification B5 or ASE Master Auto Certification B5 or ASE Master Auto Certification
Body Structural Repair Not Applicable B4 or ASE Master Auto Certification B4 or ASE Master Auto Certification
Advanced Technology Vehicles Not Applicable L3 Not Applicable
Required ASE Certification for the 2020 Mark of Excellence Program:
Job Type ASE Certification
Service Manager Automobile Service Consultant Certification Test (C1)
Service Advisor Automobile Service Consultant Certification Test (C1)
Parts Consultant Parts Specialist Certification Test (P4) 
Body Shop Consultant  Damage Analysis & Estimating Certification Test (B6) 
Other Service Personnel Parts Specialist Certification Tests (P1 or P2) or Automobile Service Consultant Certification Test (C1) 
Parts Manager Parts Specialist Certification Test (P4)
Bodyshop Manager Damage Analysis & Estimating Certification Test (B6)


How to create an ASE account How do I create a myASE account?

How to release ASE records to GM How do I release my ASE records to GM?

Affiliate ASE account with GM How do I affiliate my ASE account with GM?

Register for an ASE Certification test How do I register for an ASE Certification test?

How long for ASE completions to post to Center of Learning training records How long does it normally take for ASE credentials to post to my Center of Learning training records?

Cost of ASE Certification Tests? How much do ASE Certification Tests cost?

Where can I find more information about the Mark of Excellence program? Where can I find more information about the Mark of Excellence program?


If at any point you have trouble during the registration process for your ASE Certification test(s), email us at, or contact ASE Customer Service at 1-800-390-6789 between 8 a.m. and 5 p.m., Eastern Time, Monday-Friday, except holidays. Operators are here to help guide you through the registration process and answer any and all questions you may have.