The GMC Terrain is not as mount-friendly as it first appears. The interior layout introduces several challenges that eliminate common mounting options and make proper product selection critical.
The vertical air vents, recessed center display, and limited flat dashboard space all reduce the number of viable mounting locations. Choosing the wrong mount will result in poor positioning, instability, or constant readjustment.
This guide breaks down what actually works in the GMC Terrain and highlights mounts that match the vehicle’s layout—not generic recommendations that fail in real-world use.
Why the GMC Terrain Is Difficult for Phone Mounts
The Terrain has three design elements that affect mounting:
- Vertical air vents — weaker grip for standard clip mounts
- Recessed center display with visor — limits dash mounting space
- Deep dashboard reach — requires extension mounts
This combination eliminates CD mounts, limits dash mounts, and makes weak vent mounts unusable.
Best Mount Locations in the GMC Terrain
| Location | Works? | Verdict |
|---|---|---|
| Windshield | ✔ Yes | Best overall option |
| Vent | ✔ Conditional | Only with locking mounts |
| Dash | ✔ Limited | Low-profile only |
| Cup Holder | ✔ Yes | Best for tablets |
Best Windshield Mount (Top Pick)
The windshield is the most reliable mounting point in the Terrain, but only if using a mount with enough reach. Short mounts will position the phone too far away.
The iOttie Easy One Touch 6 solves this with a telescoping arm and strong suction base. The extension allows proper positioning without blocking the driver’s view. The extension delivers an additional 1.75 inches bringing the length to 6.75 inches.
The one-touch mechanism also makes daily use easier compared to clamp-style mounts.
A very detailed review on the iOttie One Touch 6 is worth checking out.
Best Vent Mount (Designed for Vertical Vents)
Most vent mounts fail in the GMC Terrain because they rely on spring clips. These do not hold well on vertical vent slats.
The correct solution is a hook-style vent mount that tightens behind the vent blade.
The Andobil metal hook vent mount is one of the few designs that consistently works in vertical vents. It locks into place and prevents sagging or rotation.
This should be installed on the outer vent for best viewing angle.
We also have a detailed review of the Andobil vent mount if you care to learn more. A magnetic version is also available and discussed in that review.
Best Magnetic Dash Mount (Low Profile Option)
The dash in the GMC Terrain has limited usable space due to the center display visor. Large mounts will interfere with visibility.
Low-profile magnetic mounts are the best option here.
The Scosche MagicMount provides a compact solution that stays close to the dash surface. It avoids blocking the display while still keeping the phone accessible.
This is best for drivers who want a clean, minimal setup.
Best Cup Holder Mount (Phones & Tablets)
The cup holder is one of the few locations capable of supporting a tablet in the GMC Terrain.
The APPS2Car mount stands out because it includes both a phone cradle and a tablet cradle. The adjustable base ensures a tight fit in the cup holder. These mounts are excellent for apps that don’t need to be referenced while driving. This mount is not recommended for GPS apps or others that need to be referenced while driving. A vent, dash or windshield mount will work better that purpose.
The extended arm improves visibility compared to shorter mounts.
This is best suited for:
- Tablets
- Secondary devices
- Passengers
Are There Custom Mounts for the GMC Terrain?
Unlike some vehicles, the GMC Terrain has limited true custom-fit mounting options available through major marketplaces.
The shape of the dash and vent system makes it difficult for custom brackets to gain traction. Most solutions fall into universal categories.
However, the closest thing to a “custom feel” comes from:
- Hook-style vent mounts
- Low-profile dash mounts
- Extension windshield mounts
These match the interior geometry better than standard universal mounts.
Common Mounting Problems in the GMC Terrain
| Problem | Cause | Fix |
|---|---|---|
| Vent mount falls off | Weak clip design | Use hook-style mount |
| Phone too far away | Short mount arm | Use extension mount |
| Blocked screen | Poor placement | Move lower or outward |
Installation Tips
- Mount slightly lower on windshield for better viewing angle
- Avoid center dash obstruction from visor
- Test placement before final install
- Use vent mounts only with locking mechanisms
Bottom Line
The GMC Terrain requires more careful mount selection than most vehicles. The windshield remains the best overall option, especially with an extendable mount.
Vent mounts can work if properly designed for vertical vents, while cup holder mounts are best reserved for tablets and secondary devices.
Choosing the right mount for this vehicle is less about preference and more about compatibility with the interior layout.
More GMC Phone Mount Guides
Looking for mounts for another GMC model? We have those covered too:
