General Motors

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."

Why ASE?

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 Certifications

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
Hybrid / Electric Vehicles Not Applicable L3 Not Applicable

Required ASE Certification per Job Type

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)


If you have never registered for an ASE test, visit and select the Create myASE Account link in the myASE login box. You will then be prompted through several screens to provide information about yourself to set up your account.

GM and ASE have an agreement to allow ASE Certification status from the ASE website ( to transfer into GM's training website Center of Learning ( To enable the transfer of your ASE credentials to GM's Center of Learning, you must:

  1. Log in to your myASE account.
  2. Select the Profile tab.
  3. Select the "Release my ASE status to others" checkbox and then select the Submit button.

If you have already created a myASE account, then:

  1. Log in to your myASE account.
  2. Select Company-Assigned ID.
  3. Select the Add Company-Assigned ID button.
  4. Select GM from the Company drop-down menu and enter your LMS Person ID (not your 9-digit GMIN) and then select Submit. You can find your LMS Person ID via GlobalConnect>Center of Learning Website>Profiles>Edit Your Profile.
  5. Select the Profile tab to review your information and check on your release status. Confirm that your information is correct.
  6. Select the "Release my ASE status to others" checkbox and then select the Submit button.
  1. Log in to your myASE account.
  2. Select Store link.
  3. Select the checkbox(s) for the ASE Certification Test(s) for which you wish to register.
  4. After going through several prompts, you can schedule your appointment. If you have multiple tests to schedule, you may also select the "Select All" checkbox.
  5. Then you can Find the Test Center that is most convenient for you and select the Schedule an Appointment link to find available locations.
  6. Once you have scheduled your test appointments you will be directed to an Appointment Confirmation page where you should see the correct date/time for your ASE Certification test(s). Select either the Print Registration Ticket button to print your registration ticket, or select Continue to complete the registration process.

The results from ASE are imported from ASE on a weekly basis, but it can take up to four weeks for the Center of Learning to receive certification results after completion. If you have already provided ASE with your GM Training Person ID through myASE and your records have not transferred, please contact ASE at (703) 669-6600.

For a complete listing of test dates, fees, and test times, click here.

For more information on Mark of Excellence, login to GM GlobalConnect and launch the Mark of Excellence app on the App Center tab.

Need Help?

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.

ASE Contact information



National Institute for Automotive Service Excellence
1503 Edwards Ferry Rd., NE Suite 401
Leesburg, VA 20176