The 2020 GMC Terrain remains a stylish and versatile option in the compact SUV market. With its upscale looks, comfortable cabin, and available turbocharged engines, it offers a balance of performance and convenience that appeals to both city commuters and small families. Whether you’re considering a used model or comparing it to rivals, this guide outlines everything you need to know about the 2020 GMC Terrain.
Why Consider the 2020 GMC Terrain?
A Quick Snapshot
What It Is: Compact two-row SUV with a refined feel and modern styling
What’s New: Minor trim reshuffling; diesel engine discontinued in 2020
Known Issues: Some infotainment bugs, sluggish base engine
Trims Available: SL, SLE, SLT, Denali
DIY Friendly? Yes for oil changes, filters, and tire rotations; turbo servicing may need professional care
2020 GMC Terrain Highlights
Upscale Exterior Design
The Terrain stands out from typical compact SUVs with its bold grille, squared-off wheel arches, and floating roof design. Even base trims have a premium road presence.
Pros: Handsome styling, especially in Denali trim
Cons: Rear window design limits visibility slightly
Turbocharged Engine Options
The 2020 Terrain offers two gas-powered engines:
- 1.5L Turbocharged I4 (170 hp): Standard on most trims
- 2.0L Turbocharged I4 (252 hp): Available on SLT and standard on Denali
Pros: 2.0L engine offers brisk acceleration and better highway performance
Cons: 1.5L engine feels underpowered during passing or uphill climbs
Comfortable and Quiet Interior
The cabin feels refined, with a focus on quietness and soft-touch materials. Seating is supportive, and the ride remains composed even on rough roads.
Pros: Great for long drives, minimal road noise
Cons: Rear seat doesn’t slide or recline
Smart Infotainment Setup
A 7-inch or optional 8-inch touchscreen with Apple CarPlay and Android Auto is available. The system is generally easy to use with physical volume and tuning knobs.
Pros: Clear interface, fast pairing with phones
Cons: Occasional freezing or lag reported on startup
Advanced Safety Options
Standard features include forward collision alert, lane keep assist, and automatic emergency braking. Blind-spot monitoring and adaptive cruise control are available on higher trims.
Pros: Excellent safety package even on lower trims
Cons: Some features locked behind higher trims or packages
Common Issues with the 2020 GMC Terrain
Base Engine Feels Sluggish
The 1.5L engine can feel slow, especially when loaded with passengers or climbing hills.
Fix: Consider a 2.0L-equipped model if performance is a priority
Infotainment Bugs
Some drivers report freezing screens or system restarts during extended use.
Fix: Software updates or a factory reset typically solve this issue
Limited Cargo Room with Seats Up
While practical for daily errands, the Terrain has less cargo space than some rivals when the rear seats are in use.
Fix: Fold down the rear seats to create a flat load floor when more room is needed
Rear Visibility Challenges
Thick rear pillars and small back windows can make reversing tricky.
Fix: Use the standard backup camera or add a surround-view camera if available
Slightly Firm Ride in Denali Trim
The sportier suspension tuning in the Denali can feel firmer over bumps.
Fix: Test drive SLT or SLE trims for a more relaxed suspension setup
Maintenance and Reliability Outlook
Routine Maintenance
- Oil Change: Every 7,500 miles with synthetic
- Tire Rotation: Every 6,000–8,000 miles
- Cabin and Engine Air Filters: Replace every 15,000–20,000 miles
- Transmission Fluid: Check at 45,000–60,000 miles
- Coolant and Brake Inspection: Every 30,000 miles
Fuel Economy
- 1.5L FWD: Around 26 mpg city / 30 mpg highway
- 1.5L AWD: Around 25 mpg city / 28 mpg highway
- 2.0L AWD: Around 21 mpg city / 26 mpg highway
- Total Range: 400–500 miles depending on trim and conditions
Reliability
The 2020 Terrain is generally reliable when properly maintained. The turbo engines require high-quality oil and regular attention, but overall, the vehicle shows good long-term durability.
Pros and Cons of the 2020 GMC Terrain
Pros:
✔ Distinctive styling with upscale presence
✔ Comfortable and quiet ride for daily use
✔ User-friendly infotainment system
✔ Available strong 2.0L turbo engine
✔ Solid list of safety features
Cons:
✘ Base engine lacks power under load
✘ Less cargo room than competitors
✘ Rear visibility can be tricky
✘ Ride can be firm in Denali
✘ Infotainment may need occasional rebooting
FAQs
Is the 2020 GMC Terrain a good SUV?
Yes, it’s a solid pick for those who value style, comfort, and tech in a compact package. Just make sure to pick the right engine.
What’s the difference between Terrain SLT and Denali?
Denali is the premium trim with more luxury features, unique styling, and a standard 2.0L turbo engine. SLT is more budget-friendly but still well-equipped.
Does the Terrain have all-wheel drive?
Yes. AWD is optional on most trims and standard on some higher ones.
How much can the 2020 Terrain tow?
With the 2.0L engine, the Terrain can tow up to 3,500 pounds. The 1.5L version is rated for 1,500 pounds.
Is the 2020 GMC Terrain fuel-efficient?
It’s decent for its class, especially with the 1.5L engine. Just note that AWD and the 2.0L engine reduce efficiency slightly.
The 2020 GMC Terrain blends sleek design with real-world functionality. It may not be the most spacious or powerful SUV in its segment, but it shines in comfort, style, and ease of use. For urban drivers or small families wanting a refined compact SUV without stepping into the luxury tier, the 2020 Terrain remains a smart, well-rounded option.