Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2021 Lincoln Aviator Reliability ReportCommon Problems, Repair Costs & Expert Verdict

78/ 100

KeepScore

MODERATE RISK

Grade: C+

A powerful and opulent SUV that demands vigilant ownership to navigate its early-model complexities.

Full system breakdown + what I would do

Quick Facts · 2021 Lincoln Aviator

  • Has 27 NHTSA recalls on record — the most notable involves the suspension:rear.
  • Scores 7 points below the strongest nearby year — the 2023 Lincoln Aviator earns a 85.
  • The system most likely to surface first: electrical system & infotainment (moderate severity).

Should You Buy the 2021 Lincoln Aviator?

The 2021 Lincoln Aviator offers a compelling blend of luxury, power, and comfort, but it's not without its challenges. While its engine is strong, early production models of this sophisticated SUV are known for frustrating electrical glitches and a somewhat unrefined transmission, requiring buyers to proceed with informed caution.

The 2021 Lincoln Aviator is an enticing luxury SUV, but its early production years are marred by some significant reliability concerns, primarily with its transmission and electrical systems. While many issues can be addressed with software updates, potential buyers must be prepared for the possibility of frustratin…

Best Model Years

2023+

Years to Avoid

2020-2022

Biggest Strengths

  • Potent powertrain options (especially Grand Touring PHEV)
  • Luxurious and well-appointed interior design
  • Quiet and refined cabin experience

Top Risk Areas

The systems that tend to fail first on the 2021 Lincoln Aviator, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.

1
Electrical System & Infotainmentmoderate~5,000-40,000 mi

Owners frequently report issues with the SYNC 3/4 infotainment system freezing, lagging, or rebooting. Other electrical gremlins include sensor malfunctions, power accessory failures, and occasional parasitic battery drains.

2
10-Speed Automatic Transmissionmoderate~15,000-60,000 mi

The 10R80 transmission can exhibit harsh shifts, clunking, delayed engagement, or general erratic behavior, particularly at lower speeds or during downshifts. Often, software updates address these, but some cases require physical compone…

3
Air Glide Suspension (Reserve/Grand Touring)major~30,000-75,000 mi

Models equipped with the optional air suspension have reported issues with air compressor failure, leaky air springs, or sensor faults leading to uneven ride height, slow inflation, or a complete loss of suspension at specific corners.

Full repair-cost ranges, fix-before-you-buy notes, and inspection checklists are in the report.

2021 Lincoln Aviator Mileage Danger Zones

The mileage windows when the 2021 Lincoln Aviator most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.

30,000

Software & Sensory Check

This mileage often reveals any latent electrical or infotainment bugs. Ensure all software updates are applied, especially for the powertrain and SYNC system.

60,000

Mid-Life Service & Suspension Assessment

Beyond standard fluid changes, this is where the air suspension, if equipped, may start showing signs of wear. Watch for uneven ride height or compressor noise.

90,000

Component Fatigue Zone

At this point, larger components like turbos, engine seals, and main suspension components may require attention. Proactive maintenance is key to avoiding costly failures.

120,000+

High Risk Zone

Ownership costs can escalate significantly. Expect potential major repairs across powertrain, suspension, and electrical systems. Only a meticulously maintained vehicle should be considered here.

2021 Lincoln Aviator Ownership Cost Outlook

What it typically costs to keep the 2021 Lincoln Aviator on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.

Annual Maintenance

$600-900

Moderate Repairs

$800-2,000 occasionally

How Long Does the 2021 Lincoln Aviator Last?

For maximum peace of mind, consider models with lower mileage (under 40,000 miles) and a comprehensive extended warranty, especially if it includes air suspension coverage.

What 2021 Lincoln Aviator Owners Actually Say

What Owners Love

  • Impressive acceleration and performance from twin-turbo V6
  • Sumptuous and quiet interior with high-quality materials
  • Distinctive and elegant exterior design that stands out
  • Comfortable ride quality, especially with optional air suspension

Common Frustrations

  • Frustrating transmission shifting behavior (clunky, hesitant)
  • Frequent electrical glitches and infotainment system issues
  • High fuel consumption for non-PHEV models
  • Concerns over long-term reliability and cost of complex repairs

Who Should Buy the 2021 Lincoln Aviator?

Best For

  • Luxury buyers prioritizing performance and unique style
  • Drivers seeking a very comfortable and quiet cabin experience
  • Those who appreciate advanced technology (and are patient with it)

Not Ideal For

  • Budget-conscious owners seeking low long-term running costs
  • Buyers prioritizing absolute bulletproof reliability

How the 2021 Lincoln Aviator Compares to Rivals

The Aviator offers a unique American luxury experience with robust powertrains, often outpacing direct competitors in sheer power. However, its newer platform and ambitious technology mean it hasn't quite matched the refined reliability of more established luxury rivals.

More Reliable Than

  • Infiniti QX60 (in terms of power and luxury features)
  • Acura MDX (in powertrain performance and interior opulence)

Comparable To

  • Volvo XC90 (similar luxury, tech, and early model complexities)
  • Genesis GV80 (strong luxury presence, still establishing long-term reliability)

NHTSA Recalls

27 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

SUSPENSION:REAR

Ford Motor Company (Ford) is recalling certain 2021 Explorer and Lincoln Aviator vehicles. Incorrect rear suspension module components may have been installed due to a labeling error.

ENGINE

Ford Motor Company (Ford) is recalling certain 2020-2021 Explorer and Lincoln Aviator vehicles. The right hand motor mount fasteners may have been incorrectly tightened, and may loosen over time.

What breaks on the 2021 Lincoln Aviator?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Lincoln Aviator by Year

Compare KeepScores across nearby years of the Lincoln Aviator. Click any year for its full report.

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Frequently Asked Questions

Full Report

2021 Lincoln Aviator

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

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Complete Owner's Guide

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