Can a GMC Terrain be towed on all 4 wheels?

No, the GMC Terrain cannot be towed on all four wheels without risk of damage. It is classified as a front-wheel-drive vehicle, and towing it with all wheels on the ground can lead to transmission issues. For safe towing, it's recommended to use a flatbed trailer or consult the owner's manual for specific towing guidelines. Always check with the manufacturer for the appropriate towing methods for your specific model year.