GMC Terrain: Customer Information / Publication Ordering Information

Service Manuals

Service manuals have the diagnosis and repair information on the engine, transmission, axle, suspension, brakes, electrical system, steering system, body, etc.

Customer Literature

Owner’s manuals are written specifically for owners and are intended to provide basic operational information about the vehicle. The owner’s manual includes the Maintenance Schedule for all models.

Customer literature publications available for purchase include owner’s manuals, warranty manuals, infotainment manuals, and portfolios. Portfolios include an owner’s manual, warranty manual, infotainment manual, if applicable, and zip lock bag or pouch.

Current and Past Models

Service manuals and customer literature are available for many current and past model year GM vehicles.

To order, call 1-800-551-4123 Monday–Friday, 8:00 a.m.–6:00 p.m. eastern time

For credit card orders only (VISA, MasterCard, or Discover), see Helm, Inc. at: www.helminc.com.

To order by mail, write to:

Helm, Incorporated

Attention: Customer Service

47911 Halyard Drive

Plymouth, MI 48170

Make checks payable in U.S. funds.

    Collision Damage Repair

    If the vehicle is involved in a collision and it is damaged, have the damage repaired by a qualified technician using the proper equipment and quality replacement parts...

    Radio Frequency Statement

    This vehicle has systems that operate on a radio frequency that complies with Part 15/Part 18 of the Federal Communications Commission (FCC) rules and with Innovation, Science and Economic Development (ISED) Canada's RSP-100 / license-exempt RSS's / ICES-001...

    Other information:

    GMC Terrain 2018-2021 Owners Manual: Vehicle Design


    Utility vehicles have a significantly higher rollover rate than other types of vehicles. This is because they have a higher ground clearance and a narrower track or shorter wheelbase than passenger cars, which makes them more capable for off-road driving...

    GMC Terrain 2018-2021 Owners Manual: Park Assist


    With RPA, and if equipped with FPA, as the vehicle moves at speeds of less than 8 km/h (5 mph), the sensors on the bumpers may detect objects up to 2.5m (8 ft) behind the vehicle and 1.2m (4 ft) in front of the vehicle within a zone 25 cm (10 in) high off the ground and below bumper level...

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