GMC Terrain: Reporting Safety Defects / Reporting Safety Defects to General Motors

In addition to notifying NHTSA (or Transport Canada) in a situation like this, notify General Motors.

In the U.S., call 1-800-GMC-8782 (1-800-462-8782), or write:

GMC Customer Assistance Center

P.O. Box 33172

Detroit, MI 48232-5172

In Canada, call 1-800-263-3777 (English) or 1-800-263-7854 (French), or write:

General Motors of Canada Company

Customer Care Centre, Mail Code:

CA1-163-005

1908 Colonel Sam Drive

Oshawa, Ontario L1H 8P7

In Mexico, call 01-800-466-0812 or 01-800-466-0801.

In other Central America and Caribbean Countries, call 52-722-236-0680.

    Reporting Safety Defects to the Canadian Government

    If you live in Canada, and you believe that the vehicle has a safety defect, notify Transport Canada immediately, and notify General Motors of Canada Company...

    Vehicle Data Recording and Privacy

    The vehicle has a number of computers that record information about the vehicle’s performance and how it is driven. For example, the vehicle uses computer modules to monitor and control engine and transmission performance, to monitor the conditions for airbag deployment and deploy them in a crash, and, if equipped, to provide antilock braking to help the driver control the vehicle...

    Other information:

    GMC Terrain 2018-2026 Owners Manual: Passenger Sensing System


    The vehicle has a passenger sensing system for the front outboard passenger position. The passenger airbag status indicator will light on the overhead console when the vehicle is started. The words ON and OFF will be visible during the system check...

    GMC Terrain 2018-2026 Owners Manual: New Vehicle Break-In


    Caution The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: Do not drive at any one constant speed, fast or slow, for the first 800 km (500 mi). Do not make full-throttle starts...

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