GM Global Connect Complaint Center
If you’re having issues with your GM account, dealership tools, or services, this page helps you contact the right GM support team. Whether it’s a system error, product concern, or customer service complaint, here’s where to get the help you need.
Merchandise or Service Lane Essentials
For problems related to GM merchandise or Service Lane Essentials orders, you can reach customer support through:
- Phone: (888) 247-5432
- Hours: Monday–Friday, 8:00 a.m. to 5:00 p.m. Eastern Time
- Chat: Available online during business hours
- Email: [email protected]
Marketing Collateral Complaints or Questions
If you’re having issues with marketing materials or dealer collateral, contact the support team at:
- Phone: (866) 700-0001
- Hours: Monday–Friday, 8:00 a.m. to 5:00 p.m. Eastern Time
Technical or System Support
For technical issues with the Service Information (SI) application or Labor Time Guide, contact the Techline Customer Support Center (TCSC):
- Phone: 1-888-337-1010 (prompt 3)
- Fax: 1-248-265-9327
- Website: techline.gm.com
For Labor Time Guide inquiries, reach the Dealer Business Center at:
- Phone: 1-888-414-6322
AC Delco Product Complaints or Questions
For concerns or questions about ACDelco products, contact their support team directly at:
- Phone: 1-888-212-8959
Need Help Fast?
GM’s support teams are ready to help resolve your issues quickly and professionally. Contacting the right department ensures your complaint or concern is handled efficiently, helping you get back to business without delay.
Ryan Blake

Hello, I’m Ryan Blake, the author of this guide to the GMGlobalConnect portal.
I don’t manage or operate the portal itself — it’s General Motors’ official platform for dealers and employees. My goal here is to help you understand how to access and use it smoothly. Whether you’re trying to log in, view reports, manage dealership tools, or check updates, this guide will walk you through each step clearly.
Think of me as your guide, helping you make the most of GMGlobalConnect without any confusion.
Best regards,
Ryan Blake