Contact GM Upfitter Integration

This website is intended to be an advisory service for commercial vehicles only. Please use the form below to contact us. If you are not a commercial vehicle customer, please contact the Customer Assistance Center at

• 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).

There are two ways to submit a request for technical assistance to the GM Upfitter Integration Group:
(1) by telephone by calling our toll-free number, 1- 800- 875- 4742
(2) by e-mail by submitting the completed form below.

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.

Please complete the following company information so that we may contact you with an answer to your question.

* Red asterisk indicates a required field. Failure to provide information in any field with a red asterisk will prevent request submission.

 

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Please complete the following vehicle information as thoroughly as possible to ensure an accurate answer to your question. If you have a VIN, please provide it or at least the last 8 digits of VIN to retrieve vehicle information, since it represents the best source of vehicle information and will help expedite your request.
VIN: If you do not have a VIN available, please provide complete vehicle information in the boxes below. Vehicle: Choose one of the following: Avalanche Classic Silverado/Sierra Colorado / Canyon Express / Savana HHR Panel Hummer H2/H3 Isuzu N OR W Series Other Police Impala S10 Silverado / Sierra Suburban / Tahoe / Yukon Top Kick / Kodiak Trailblazer / Envoy Uplander/Montana/Terraza/Relay Model Number: Choose one of the following: 1500 1500 HD 2500 2500 HD 3500 3500 HD 3600 4500 5500 6500 7500 8500 Model Year: Vehicle Type: Choose one of the following: Pick-Up Regular Pick-Up Extended Crew Cab Motor Home Cutaway Commercial Cutaway School Bus Van 2-Door Utility 4-Door Utility Cab Chassis Engine: Choose one of the following: 4.3L V-6 4.8L V-8 5.0L V-8 5.3L V-8 5.7L V-8 6.0L 6.0L V-8 6.5L V-8 Turbo Diesel 6.6L CAT 3116 6.6L Duramax Diesel 7.2L CAT 3126 Diesel 7.2L Duramax Diesel 7.4L V-8 7.4L V-8 Gas 7.4L V-8 Propane 7.8L Duramax Diesel 8.1L V-8 Gas Bi-Fuel CNG Electric LPG (Propane) UNKNOWN Transmission: Choose one of the following: Manual Automatic Brakes: Choose one of the following: Hydraulic Air ABS Hydraulic ABS Air Drive: Choose one of the following: 2-Wheel Drive 4-Wheel Drive Issue: