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To request technical assistance from the GM Upfitter Integration Group please complete and submit this form.
Once a Case is received by the Upfitter Integration coordinator, it will be screened for export compliance issues. You may be asked to answer a few questions about the vehicle and the scope of the upfit if you are non-US based or your issue raises possible concerns about export compliance. You will receive a telephone call and/or e-mail from one of our Technical Liaison Engineers within 48 business hours of receipt of your request.
THIS WEBSITE IS INTENDED TO BE AN ADVISORY SERVICE FOR COMMERCIAL VEHICLES ONLY.
If you are not an Upfitter or Commercial Vehicle Customer, please contact the customer assistance center for Retail Vehicle Support.
Chevrolet Customer Assistance Center at 1-800-222-1020. In Canada, call General Motors of Canada Customer Communication Centre at 1-800-263-3777 (English), or 1-800-263-7854 (French).
GMC Consumer Relations Manager at 1-800-GMC-8782 (1-800-462-8782, Customer Assistance prompt). In Canada, call General Motors of Canada Customer Communication at 1-800-263-3777 (English) or 1-800-263-7854 (French).
Cadillac Customer Assistance Center, 24 hours a day, at 1-800-458-8006. In Canada, call the Canadian Cadillac Customer Communication Centre at 1-888-446-2000.
GM Medium Duty Truck Customer Assistance Center at 1-800-862-4389. In Canada, call GM of Canada Customer Communication Centre in Oshawa at 1-800-263-3777 (English), or 1-800-263-7854 (French).
NOTE: SPAM alert...We have implemented many new features within this new website to enable us to provide a quicker response to your inquiries, and we have many more that we are still working on as we roll the site out to you. One of the new features is that when we input into a response or reply to you inquiry in the case management application, it immediately sends that information to you via an automated email from our email address of email@example.com. We have been made aware of occurrences where the emails from that sender are being forwarded to the recipients SPAM or Trash folders. Please take a moment and denote the email sender address of firstname.lastname@example.org as NOT SPAM such that you will receive the responses to your inquiries in you inboxes.
Thank you...watch for mores updates coming soon and to receive regular notifications, check the box on the contact us form prior to submitting your inquiry.
GM Upfitter Integration.