Buying the most reliable full-size SUV in 2026 is sure to pose a massive financial commitment for anyone, but especially familites that already have a lot of things to juggle. When evaluating the best full-size SUV for reliability, buyers must consider a lot of things, including the luxuries heavy-duty towing demands, powertrain repair costs, and unexpected mechanical downtime. We have listed eight of your top choices, breaking down these key areas to help you get the best SUV for your entire family.
We have selected only 2026 models that have been on sale in their current generation long enough to have reliability rankings/scores. We consider only SUVs that fall into the full-size category. We rank them from least to most reliable.
8
GM’s 2026 Yukon, Suburban & Tahoe
Yukon, Suburban & Tahoe Powertrain Overview
Engine Options
5.3L V8
6.2L V8
3.0L Turbo-diesel
Horsepower
305–420 hp
Torque
383–495 lb-ft
Transmission
10-speed Auto
Drivetrain
RWD
AWD
MPG (city/highway/combined)
15/20/17 mpg (5.3L V8, RWD)
Towing Capacity
Up to 8,400 lbs
The General Motors siblings – comprising the GMC Yukon, Chevrolet’s Tahoe and Suburban – kick off our list. While they are essentially the same vehicle underneath the skin, varying interior trims and assembly tolerances result in different J.D. Power dependability scores, with the Tahoe historically edging out the Yukon slightly. When assessing dependable full-size SUVs, these GM models present a mixed bag of long-term data. On the reliability front, the naturally aspirated 5.3-liter and 6.2L V8 engines are proven heavy-haulers, but certain model years (particularly 2021 through 2022) have documented NHTSA complaints regarding valve lifter failures and transmission shudder. Buyers looking for maximum durability should target the 2024-2026 models or opt for the 3.0L Duramax diesel engine, which has proven to be exceptionally strong and efficient.
For large families, few vehicles can match this triplet’s sheer utility. The cavernous interior comfortably seats up to eight passengers with true adult-sized third-row legroom, which is a massive leap over previous generations thanks to the independent rear suspension. These vehicles define the classic American family hauler segment, balancing truck-based frames with modern ride comfort. Safety scores remain strong, and with a maximum towing capacity of up to 8,400 lbs, hauling a heavy family camper or boat is effortless. Despite moderate recall numbers affecting early production runs, their widespread parts availability and lower repair costs keep long-term ownership highly viable.
Reliability Scores, Recalls, & Complaints (2026 Tahoe)
- J.D. Power Quality & Reliability: 81/100
- NHTSA Recalls: 3
- NHTSA Complaints: 16
7
2026 Mercedes-Benz GLS
Mercedes-Benz GLS Powertrain Overview
Engine Options
3.0L Turbo I6
4.0L Bi-turbo V8
Horsepower
375–603 hp
Torque
369–627 lb-ft
Transmission
9-speed Auto
Drivetrain
AWD
MPG (city/highway/combined)
19/24/21 mpg (GLS 450)
Towing Capacity
Up to 7,700 lbs
Next is the Mercedes-Benz GLS. As the most reliable large SUV in the European luxury segment, the GLS combines opulent comfort with solid, albeit expensive, dependability. J.D. Power data indicates that the GLS scores adequately for initial quality, but long-term ownership requires strict adherence to maintenance schedules because the SUV’s reliability largely hinges on engine choice. The standard inline-six mild-hybrid powertrain in the GLS 450 suffers far fewer owner complaints than the complex twin-turbo V8 found in the GLS 580 variant. Common NHTSA complaints typically revolve around the advanced MBUX infotainment software updates and the air suspension systems rather than outright engine failures.
For big families, the GLS is a serene, rolling sanctuary. It seats up to seven passengers across three rows, with standard air suspension delivering a pillowy ride that isolates occupants from jarring road imperfections; the cabin lined with premium materials further helps this. While its 7,700-lb towing capacity falls slightly short of body-on-frame American rivals, it remains more than capable of handling towing duties. Advanced active safety features, automated collision avoidance, and exceptional crash test ratings provide crucial on-road peace of mind.
Reliability Scores, Recalls, & Complaints
- J.D. Power Quality & Reliability: 78/100
- NHTSA Recalls: 6
- NHTSA Complaints: 1
6
2026 BMW X7
BMW X7 Powertrain Overview
Engine Options
3.0L Turbo I6
4.4L Bi-turbo V8
Horsepower
375–631 hp
Torque
398–590 lb-ft
Transmission
8-speed Auto
Drivetrain
AWD
MPG (city/highway/combined)
21/25/22 mpg (X7 xDrive40i)
Towing Capacity
Up to 7,500 lbs
The BMW X7 represents Munich’s flagship entry into the large SUV space. It stands out as a highly reliable full-size SUV for families who refuse to compromise on driving engagement. According to J.D. Power, the X7 scores above average in its class for long-term dependability, particularly when equipped with the B58 3.0L turbocharged inline-six engine (found in the xDrive40i). This specific powerplant is widely regarded as one of the most robust engines BMW has ever produced, keeping major mechanical repairs to an absolute minimum. However, prospective buyers should be wary of the V8-powered M60i, which historically generates more NHTSA complaints related to thermal management and electronic sensors.
From a family perspective, the X7 is exceptionally well-engineered. While its third row is slightly tighter than its American competitors, it still comfortably accommodates children and younger teenagers. Four-zone climate control, massive panoramic glass roofs, and superior cabin acoustic insulation make long road trips a joy. The X7 also boasts impressive safety tech, including advanced semi-autonomous driving aids that drastically reduce driver fatigue in heavy traffic. Its tow rating is a respectable 7,500 lbs.
Reliability Scores, Recalls, & Complaints
- J.D. Power Quality & Reliability: 81/100
- NHTSA Recalls: 2
- NHTSA Complaints: 4
5
2026 Ford Expedition
Ford Expedition Powertrain Overview
Engine Options
3.5L Twin-turbo V6
Horsepower
400
Torque
480
Transmission
10-speed Auto
Drivetrain
RWD
AWD
MPG (city/highway/combined)
16/24/19 (RWD)
Towing Capacity
Up to 9,300 lbs (9,600 lbs when properly equipped)
Entering the top half of our list is the Ford Expedition, a resilient stalwart in the Blue Oval’s portfolio. When analyzing full-size SUV reliability rankings, the Expedition consistently outperforms many of its domestic rivals in engine longevity, largely due to Ford’s decade-long refinement of the EcoBoost architecture. The 3.5L twin-turbocharged V6 has been heavily revised since its initial introduction, with the 2024–2026 iterations showing a dramatic reduction in the cam phaser issues that plagued earlier models. NHTSA data shows occasional complaints regarding the SYNC infotainment screen freezing on startup. Overall, mechanical dependability remains impressively high for a vehicle of this sheer mass.
The Expedition excels at moving families in supreme comfort. Its independent rear suspension unlocks massive interior volume, allowing adults to sit comfortably in the third row without feeling cramped. Cargo space is cavernous, particularly in the extended-wheelbase MAX variant, ensuring you never have to choose between passengers and luggage. On the utility front, the Expedition is an absolute towing titan, capable of dragging up to 9,300 lbs when properly equipped. The SUV is supported by Ford’s comprehensive suite of Co-Pilot360 active safety features.
Reliability Scores, Recalls, & Complaints
- J.D. Power Quality & Reliability: Not Rated
- NHTSA Recalls: 1
- NHTSA Complaints: 6
4
2026 Lincoln Navigator
Lincoln Navigator Powertrain Overview
Engine Options
3.5L Twin-turbo V6
Horsepower
432 hp
Torque
510 lb-ft
Transmission
10-speed Auto
Drivetrain
4×4
MPG (city/highway/combined)
16/23/18 mpg
Towing Capacity
8,700 lbs
The Lincoln Navigator shares its architecture and powertrain options with the Ford Expedition, but superior factory build quality and premium materials elevate it higher on our list. It is arguably the most reliable 3-row SUV in the domestic luxury sector today. It utilizes a high-output version of the 3.5L twin-turbo V6, which has proven to be resilient under stress. While there have been minor recalls regarding exterior camera software and occasional electrical gremlins, NHTSA complaints regarding major mechanical failures are notably rare.
If you desire first-class travel, the Navigator is simply unmatched. The cabin is defined by its incredibly supportive “Perfect Position” seats, which offer heating, ventilation, and active massage functions. The sheer volume of acoustic dampening glass guarantees a whisper-quiet ride, allowing children to sleep peacefully in the spacious second and third rows. Safety is paramount, with Lincoln’s Co-Pilot360 providing top-tier active driving assistance and collision mitigation.
Reliability Scores, Recalls, & Complaints
- J.D. Power Quality & Reliability: Not Rated
- NHTSA Recalls: 2
- NHTSA Complaints: 0
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3
2026 Nissan Armada
Nissan Armada Powertrain Overview
Engine Options
3.5L Twin-turbo V6
Horsepower
425–460 hp
Torque
516 lb-ft
Transmission
9-Speed Auto
Drivetrain
RWD
4×4
MPG (city/highway/combined)
16/20/18 mpg (4×2)
Towing Capacity
Up to 8,500 lbs
Taking the bronze medal on our list is the Nissan Armada, which recently underwent its most significant transformation in a decade. When discussing full-size SUV engine reliability, the conversation has shifted since Nissan retired the old naturally aspirated V8, replacing it with a modern 3.5L twin-turbocharged V6. While this introduces new complexity, the VR-series engine family it derives from has a proven track record in Nissan’s high-performance vehicles. Because the twin-turbo V6 is fresh for the 2025 model year, high-mileage data is currently limited, but early NHTSA complaints are remarkably low.
The redesigned Armada offers vastly improved space, and the interior now features genuinely usable third-row seating for eight passengers and top-tier forward visibility. The heavy-duty ladder-frame chassis ensures it can handle brutal towing duties, retaining an 8,500-lb capacity.
Reliability Scores, Recalls, & Complaints
- J.D. Power Quality & Reliability: Not Rated
- NHTSA Recalls: 1
- NHTSA Complaints: 5
2
2026 Lexus LX 600
Lexus LX 600 Powertrain Overview
Engine Options
3.4L Twin-turbo V6
Horsepower
409 hp
Torque
479 lb-ft
Transmission
10-speed Auto
Drivetrain
4WD
MPG (city/highway/combined)
17/22/19 mpg (600 Premium)
Towing Capacity
8,000 lbs
The Lexus LX lands in second place and represents the absolute pinnacle of luxury durability. For buyers investigating used full-size SUV reliability, the previous generation’s naturally aspirated V8 was legendary, but the current LX 600 – powered by a 3.4L twin-turbo V6 – continues this tradition of unyielding dependability. Built alongside the global Toyota Land Cruiser, the LX boasts meticulous Japanese assembly tolerances, supported by J.D. Power dependability studies that consistently place Lexus at or near the very top of the entire automotive industry. While this new turbocharged powertrain has fewer long-term high-mileage data points, initial NHTSA complaints are nearly nonexistent, which only reflects Toyota’s rigorous testing protocols.
The LX is a formidable family fortress. While its third row and overall cargo space are tighter than its American body-on-frame competitors, it compensates with peerless material quality and supreme ride comfort. The cabin completely isolates families from the outside world, offering an incredibly smooth ride via advanced hydraulic suspension damping. Safety is anchored by the standard Lexus Safety System+ suite and a structural rigidity that feels indestructible. With an 8,000-lb towing capacity, it pulls loads effortlessly while retaining the extreme off-road capability to traverse remote trails.
Reliability Scores, Recalls, & Complaints
- J.D. Power Quality & Reliability: Not Rated
- NHTSA Recalls: 1
- NHTSA Complaints: 1
1
2026 Toyota Sequoia
Toyota Sequoia Powertrain Overview
Engine Options
3.5L Twin-turbo V6 Hybrid
Horsepower
437 hp
Torque
583 lb-ft
Transmission
10-speed Auto
Drivetrain
RWD
4WD
MPG (city/highway/combined)
21/24/22 mpg
Towing Capacity
Up to 9,500 lbs
Claiming the absolute top spot for durability is the Toyota Sequoia. Earning our gold medal for long-term dependability, the heavily redesigned Sequoia utilizes the i-FORCE MAX hybrid powertrain. By mating a 3.4L twin-turbo V6 with an electric motor, Toyota generated massive torque without compromising its sterling reputation. J.D. Power data and historical consumer reports confirm that Toyota’s body-on-frame vehicles outlast virtually everything else on the road. NHTSA complaints for the latest generation are incredibly sparse, and Toyota’s proactive quality control ensures that any minor recalls are swiftly resolved before they escalate.
For large families, the Sequoia’s hybrid system delivers impressive fuel economy for a vehicle of this size, directly lowering the ongoing cost of ownership. It comfortably seats up to eight passengers, and while the hybrid battery slightly encroaches on rear cargo space, the interior remains versatile and packed with family-friendly storage solutions. Safety is backed by Toyota Safety Sense 2.5, and the tow rating is a whopping 9,500 lbs.
“The new Sequoia has a stiffer chassis, better suspension, a more sophisticated interior, and a much-improved towing capacity.”
– Ian Wright, Senior Road Tester, CarBuzz
Reliability Scores, Recalls, & Complaints
- J.D. Power Quality & Reliability: 80/100
- NHTSA Recalls: 0
- NHTSA Complaints: 6
Sources: BMW, Chevrolet, Ford, GMC, Lexus, Lincoln, Mercedes-Benz, Nissan, Toyota, NHTSA, J.D. Power
