You’ll want to avoid the 2019 and 2020 Subaru Ascent model years due to their extensive reliability issues. The 2019 model faced six recalls and 398 NHTSA complaints, while the 2020 version logged 204 complaints and one recall. Both years suffer from electrical system failures, defective fuel pumps, and transmission problems. The 2021 model year marked significant improvements in reliability and technology, making it a much safer bet for your investment.
Most Problematic Subaru Ascent Years at a Glance
The 2019-2020 Subaru Ascent models stand out as the most problematic years in the vehicle’s production history, with the 2019 model year being particularly troublesome. The 2019 model received 398 NHTSA complaints and triggered six Subaru Ascent recalls, while the 2020 version logged 204 complaints and one recall.
Both years faced considerable issues with electrical systems, premature battery drain, and spontaneous windshield cracking. The 2019 model’s defective Denso fuel pump and B-pillar spot weld problems led to major recalls, with many vehicles requiring complete destruction due to safety risks. Similar to Forester’s head gasket failures in earlier models, these issues signaled serious manufacturing concerns. Recent Consumer Reports data shows the 2022 model earned a concerning 18 point reliability score. Like the engine problems that plagued the 2013 Hyundai Elantra, these Ascent model years demonstrated significant mechanical shortcomings. Multiple Subaru Ascent lawsuits emerged, including class-action litigation over windshield defects and battery capacity issues. These model years considerably lowered Consumer Reports reliability scores, making them prime candidates to avoid when shopping for a used Ascent.
Breaking Down the 2019 Model Year Issues
Among the many issues plaguing 2019 Ascent models, engine and transmission problems emerged as primary concerns requiring multiple manufacturer interventions. Engine failures stemmed from defective fuel pump impellers that cracked due to manufacturing solvent exposure, leading to stalling and rough running conditions. Subaru recalled over 200,000 units to address this critical defect. Regular maintenance checks and servicing can help detect these issues before they cause major damage or failures.
The transmission exhibited severe complications, including rough shifting, hesitation, and complete failure in some cases. While software updates attempted to resolve these issues, many owners still reported persistent problems. The vehicle’s electrical system suffered from infotainment glitches and safety sensor malfunctions, while premature brake wear and rotor warping added to maintenance concerns. These combined problems suggest significant quality control oversights in the 2019 model year’s production.
Why the 2020 Ascent Fell Short
Following widespread quality control issues in the 2019 model year, Subaru’s 2020 Ascent continued to exhibit serious mechanical and structural defects that undermined its reliability.
Major concerns centered on fuel pump failures caused by defective impellers that could crack and deform, leading to stalling, hard starts, and rough running. A recall affecting over 200,000 vehicles addressed this critical flaw. Equally troubling was the persistent issue of windshield cracking, which occurred even without impact and resulted in a class action lawsuit. You’ll also encounter significant electrical system problems, including frequent battery failures and malfunctioning safety sensors. The cooling system proved problematic with radiator leaks, while premature brake wear and faulty safety components further compromised the vehicle’s dependability. Drivers frequently reported rough gear shifts while accelerating, especially at higher speeds.
Transmission and Brake Concerns Across Years
While Subaru’s Ascent faced numerous challenges since its debut, transmission problems emerged as a critical issue affecting both 2019 and 2020 model years. The CVT system‘s software defects in the Transmission Control Unit led to chain slippage and potential power loss, impacting over 198,000 vehicles. You’ll notice symptoms like gear jerking, delayed response, and distinctive whining noises indicating potential CVT failure.
The transmission issues extend beyond mere inconvenience, potentially compromising brake performance through unexpected engine stalling and regenerative braking complications. Though Subaru issued software updates post-2020, reports of shifting failures persisted. If you’re considering an Ascent, be particularly wary of 2019 models manufactured before May 2019, as they experienced the highest rate of transmission sensor failures and warranty claims.
Common Electrical System Failures to Watch For
Serious electrical system failures plague early Subaru Ascent models, particularly the 2019-2020 years, with issues ranging from improperly fastened ground bolts to premature battery drain. You’ll want to watch for signs of electrical failures including smoke from the PTC heater, rapid battery depletion, and damaged wire harnesses.
The 2019-2020 models exhibit a concerning pattern of battery drain that can leave you stranded, with original batteries failing as early as 14 months into ownership. A class action lawsuit highlights this systemic defect, claiming insufficient battery capacity to maintain electrical components when the vehicle is off. Additionally, burned wire harnesses and loose ground bolts in the PTC heater assembly create fire risks, leading to a significant recall of 271,694 units.
The 2021 Turning Point: Notable Improvements
The 2021 Subaru Ascent marked a significant shift away from the electrical problems that plagued earlier models, introducing extensive safety and technology upgrades across all trim levels.
The 2021 safety upgrades included enhanced EyeSight® with Advanced Adaptive Cruise Control, Lane Centering, and Lane Keep Assist as standard features. You’ll also find Steering Responsive LED Headlights and a new Seat Belt Reminder system for all three rows.
The 2021 performance enhancements retained the proven 2.4-liter turbocharged BOXER engine with 260 horsepower, while focusing on drivetrain refinement and fuel efficiency. The Lineartronic CVT with 8-speed manual mode continued to deliver smooth power delivery, maintaining the impressive 5,000-pound towing capacity. Standard AWD with X-Mode and hill descent control further strengthened the Ascent’s capability in challenging conditions.
Making a Smart Ascent Purchase Decision
Based on extensive reliability data and owner feedback spanning multiple model years, making an informed Ascent purchase requires careful consideration of specific model years and their associated issues. You’ll want to focus on 2021 and newer models, which demonstrate considerably improved reliability scores and resolved early defects.
When evaluating potential purchases, prioritize vehicles with documented maintenance histories and verify there aren’t any unresolved recalls or prior windshield replacements. Consider financing options on Certified Pre-Owned vehicles from 2021 onward, as they offer warranty considerations that can protect against unexpected repairs. Before finalizing your purchase, conduct thorough pre-purchase inspections focusing on brake performance, battery health, and windshield integrity. For ideal value, target 3+ year-old models that have already experienced their steepest depreciation while avoiding the problematic 2019-2020 years.
