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

2021 Nissan Altima Reliability ReportCommon Problems, Repair Costs & Expert Verdict

78/ 100

KeepScore

MODERATE RISK

Grade: C+

A comfortable cruiser with good fuel economy, but the CVT remains a looming question mark for high-mileage ownership.

Full system breakdown + what I would do

Quick Facts · 2021 Nissan Altima

  • Has 2 NHTSA recalls on record — the most notable involves the steering:linkages:tie rod assembly.
  • Scores 7 points below the strongest nearby year — the 2023 Nissan Altima earns a 85.
  • The system most likely to surface first: continuously variable transmission (cvt) (major severity).

Should You Buy the 2021 Nissan Altima?

The 2021 Nissan Altima is a generally comfortable and efficient sedan, but its long-term reliability is overshadowed by the inherent risks associated with its Continuously Variable Transmission (CVT). While the engines themselves are robust, potential CVT issues necessitate a 'proceed with caution' approach for buyers seeking maximum peace of mind in the long run.

While the 2021 Nissan Altima provides excellent comfort and fuel economy, the potential for expensive CVT issues makes it a cautious recommendation. It's a solid choice if you prioritize a smooth ride and efficiency, but only if you commit to diligent CVT maintenance and accept the inherent risk beyond 100,000 miles…

Best Model Years

2020-2023 (post-facelift and later versions of 7th gen)

Years to Avoid

Earlier 6th gen Altimas (2013-2018) had more widespread and severe CVT issues.

Biggest Strengths

  • Fuel-efficient engine options (especially 2.5L)
  • Comfortable ride and spacious interior
  • Generally strong body structure and safety ratings

Top Risk Areas

The systems that tend to fail first on the 2021 Nissan Altima, 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
Continuously Variable Transmission (CVT)major~60,000-120,000 mi

The Xtronic CVT, while improved, can still exhibit shuddering, slipping, or complete failure due to fluid degradation or internal component wear. Neglecting fluid changes accelerates wear.

2
Electrical Systems & Infotainmentminor~20,000-70,000 mi

Owners sometimes report issues with the infotainment screen freezing, Apple CarPlay/Android Auto connectivity drops, or occasional sensor-related warnings (e.g., ADAS). These are often software-related but can be frustrating.

3
Suspension Componentsmoderate~50,000-90,000 mi

Premature wear of front control arm bushings or noisy struts can lead to clunking sounds over bumps and affect handling stability. This is more common in areas with poor road conditions.

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

2021 Nissan Altima Mileage Danger Zones

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

30,000

Low Risk Zone

At this mileage, the vehicle is still relatively new. Issues are typically covered under warranty and are often minor electrical glitches or early wear items.

60,000

Maintenance Zone

This is a critical period for preventative maintenance, especially for the CVT. Neglecting fluid changes here can drastically shorten its lifespan. Suspension components might begin to show initial signs of wear.

90,000

Elevated Risk Zone

Beyond warranty coverage for major components, the likelihood of CVT-related issues significantly increases. Other wear items like struts or wheel bearings may also require attention.

120,000+

High Risk Zone

If the CVT has not been meticulously maintained, this mileage introduces a substantial risk of major transmission failure. Engine components like sensors or accessories might also require replacement.

2021 Nissan Altima Ownership Cost Outlook

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

Annual Maintenance

$400-600

Moderate Repairs

$500-1,500 occasionally (e.g., control arms, major service)

How Long Does the 2021 Nissan Altima Last?

For best long-term value, target Altimas with under 60,000 miles that have a documented CVT fluid change. Be extremely wary of models approaching or exceeding 100,000 miles without detailed transmission service records.

What 2021 Nissan Altima Owners Actually Say

What Owners Love

  • Excellent fuel economy, especially with the 2.5L engine.
  • Comfortable and quiet ride, ideal for long commutes.
  • Spacious interior for front and rear passengers.
  • Available AWD is a significant advantage in certain climates.

Common Frustrations

  • CVT performance can feel unrefined and 'rubbery' compared to traditional automatics.
  • Some owners report frustrating infotainment glitches and connectivity issues.
  • Interior materials, while durable, can feel less premium than rivals.
  • Lackluster acceleration with the base 2.5L engine.

Who Should Buy the 2021 Nissan Altima?

Best For

  • Commuters seeking a comfortable and fuel-efficient daily driver
  • Buyers prioritizing AWD capability in a mid-size sedan
  • Individuals who prefer a soft, compliant ride over sporty handling

Not Ideal For

  • Buyers seeking maximum long-term reliability without proactive transmission maintenance
  • Enthusiasts looking for engaging driving dynamics

How the 2021 Nissan Altima Compares to Rivals

The Altima offers similar comfort and features to its Korean rivals but typically falls short of the class leaders (Camry, Accord) in terms of perceived long-term reliability due to the CVT.

More Reliable Than

  • Kia K5 (earlier years had engine issues)
  • Chevrolet Malibu

Comparable To

  • Hyundai Sonata
  • Subaru Legacy

NHTSA Recalls

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

STEERING:LINKAGES:TIE ROD ASSEMBLY

Nissan North America, Inc. (Nissan) is recalling certain 2020-2021 Nissan Altima vehicles. The tie rod ball joint fastener was not tightened properly, which could result in the tie rod ball joint detaching from the steering knuckle.

BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Nissan North America, Inc. (Nissan) is recalling certain 2019-2021 Altima and 2020-2021 Sentra vehicles. Damage to the camera harness can cause distortion or loss of the rearview camera display image. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

What breaks on the 2021 Nissan Altima?

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

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Nissan Altima by Year

Compare KeepScores across nearby years of the Nissan Altima. Click any year for its full report.

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