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How to Program the Key for the GMC Terrain?

Model: GMC Terrain MK 2 - Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Part: Key

See other generations:
Video tutorial

To program the key for the GMC Terrain, insert the unprogrammed key into the ignition switch. At this point, connect a scanner to the vehicle's OBD port, located on the dashboard just below the steering column.

Once the scanner is connected, select the corresponding vehicle model and version. Follow the instructions provided in the tutorial to ensure the key is programmed correctly, and then disconnect the scanner.


Updated on 17 October 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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