Driving the 2020 Subaru Ascent promised spacious comfort and confident capability, yet many owners encountered specific issues that disrupted that experience. From minor electronic glitches to more serious mechanical concerns, these problems highlighted the challenges of scaling up the Subaru platform for seven passengers. Understanding these specific faults is essential for current owners looking to maintain reliability and for prospective buyers weighing the risks of this large SUV.
Common Powertrain and Drivetrain Concerns
The heart of the Ascent is its turbocharged 2.4-liter boxer engine, but this configuration, paired with the continuously variable transmission (CVT), proved vulnerable in the 2020 model year. Owners frequently reported unsettling shuddering or vibration during low-speed acceleration, particularly when the engine was cold. This sensation, often described as a "wobble" or "rumble," pointed to potential issues with the transmission's torque management or the balance shafts designed to smooth out the inherent vibrations of the flat-four engine.
More serious than the shuddering was the occurrence of sudden power loss or surging. Drivers described moments where the vehicle would unexpectedly lose acceleration, only to surge forward seconds later, creating a dangerous and unpredictable driving dynamic. These incidents were frequently linked to the CVT's software or its belt-driven system, which struggled to manage the high torque output of the turbocharged engine under stress.
Electrical System and Infotainment Failures
Beyond the powertrain, the 2020 Ascent's advanced electronics were a consistent source of frustration. The large center touchscreen, a hallmark of the vehicle's modern interior, was prone to freezing, unresponsive touch inputs, or simply failing to boot up. This wasn't merely an inconvenience; it disabled critical functions like navigation, Bluetooth connectivity, and climate control settings that are integral to the driving experience.
These infotainment issues were often part of a broader pattern of electrical gremlins. Reports of dead battery drains, malfunctioning power liftgates, and erratic sensor warnings were widespread. The complexity of the vehicle's wiring harness and the sheer number of integrated modules created an environment where software glitches could cascade into multiple system failures, requiring dealer visits for software updates or component replacements.
Brake and Steering System Anomalies
Safety-critical systems did not escape scrutiny, with a notable number of complaints centered on the braking and steering systems. Some drivers experienced a high-pitched squealing or grinding noise emanating from the front brakes, often indicating premature wear or improper contact between the pads and rotors. In more severe cases, this progressed to a soft or spongy brake pedal feel, which is a serious concern demanding immediate attention.
Steering issues manifested as vague feedback or a noticeable looseness at low speeds, particularly during parking maneuvers. Owners also reported a distinct "clunk" or knocking sound from the front end when traversing uneven road surfaces. These noises suggested potential wear in the steering rack mounts or suspension components, compromising the precise handling that Subaru is traditionally known for.
Interior Quality and Material Concerns
Shifting focus to the cabin, the 2020 Ascent faced criticism for interior quality control that did not match its premium price point. Hard plastics dominated the lower dashboard and door panels, creating a stark contrast to the soft-touch materials in the upper steering wheel and center console. This inconsistent use of materials felt dated and reduced the overall perceived value of the vehicle.
Beyond aesthetics, functional defects emerged. Window regulators failed, causing windows to stop working or operate erratically. Seat upholstery, particularly on the second and third rows, showed signs of premature wear or staining, raising questions about the durability of the chosen fabrics. These issues, while not safety-related, significantly impacted the long-term satisfaction of ownership.
