Driving a 2017 GMC Terrain offers a blend of efficiency, capability, and comfort that fits well within the compact SUV segment. Released as a model year refresh, this vehicle brought updated technology and a more refined interior to the table. However, like any complex machine manufactured during its specific production window, the 2017 Terrain is not without a list of reported issues that owners have encountered over the years.
Overview of the 2017 Model Year
The 2017 model year marked an important transition for the GMC Terrain, sitting as it did between a major redesign cycle. During this year, GMC focused on enhancing the infotainment system and upgrading standard safety features to remain competitive. The base engine remained a 1.4-liter turbocharged four-cylinder, mated to either a six-speed automatic or a nine-speed automatic transmission, depending on the trim level. Understanding these specific configurations is vital because certain problems, such as transmission shudder or engine misfires, were often linked to specific powertrain combinations.
Common Engine and Transmission Problems
The 1.4L turbocharged engine, while efficient, became the center of several recurring complaints. Many owners reported rough idling, hesitation during acceleration, and the illumination of the check engine light. These symptoms are frequently indicative of issues with the turbocharger wastegate or the engine control module attempting to compensate for incorrect air-fuel mixtures. Furthermore, the nine-speed automatic transmission found in higher trims garnered attention for its tendency to produce excessive vibration during low-speed driving and sometimes harsh shifting behavior that detracted from the driving experience.
Electrical and Infotainment Malfunctions
Electronics are the heart of the modern driving experience, and the 2017 Terrain's radio and wiring harness were not immune to failure. A significant number of complaints center around the head unit freezing, resetting randomly, or failing to power on entirely. Beyond the screen, owners have documented issues with door ajar warnings that activate without doors being open, as well as trunk releases that cease to function. These specific electrical gremlins often point to a failing body control module or corroded connections within the vehicle's wiring loom.
Brake and Steering Concerns
Safety-critical systems demand reliability, and the 2017 Terrain has seen its share of discussion regarding the brakes and steering. Some drivers have noted a high-pitched squealing or grinding noise originating from the front brakes, which usually suggests issues with the brake pads or rotors. In more severe instances, owners have reported a loss of steering assist, making the wheel feel suddenly heavy during parking maneuvers. This power steering issue can be particularly disconcerting and often requires immediate attention from a qualified mechanic to inspect the power steering pump or electric motor.
Fuel System and Oil Consumption
Beyond the immediate drivetrain, there are maintenance-related issues that have defined the ownership experience for this model. Fuel system problems, while not widespread, have been documented; these include failing fuel pumps or clogged filters that lead to stalling or difficulty starting the engine. Additionally, certain years of production saw GM grapple with excessive oil consumption in similar engine platforms. Owners of the 2017 Terrain should monitor their oil dipstick regularly, as burning oil can lead to decreased performance and potential long-term engine damage if not addressed promptly.
Vehicle Recalls and Technical Service Bulletins
Manufacturers issue recalls and Technical Service Bulletins (TSBs) to address known defects, and checking this history is a non-negotiable step for any used buyer. The 2017 GMC Terrain is subject to multiple recalls covering items such as the potential for the steering wheel to detach, issues with the antilock braking system, and emissions compliance fixes. Furthermore, TSBs often detail fixes for the very problems mentioned in owner forums, such as updating the software for the transmission control module or replacing wiring harnesses prone to chafing. Verifying that all open recalls have been addressed is the single best way to mitigate future headaches.
