Last updated: 2026-03-04
2021 Nissan Altima Reliability Score & Common Problems
The 2021 Nissan Altima scores 79/100 ("Good"). With 2 recalls and 53 owner complaints, reliability is acceptable but not class-leading.
2021 is year 3 of the Sixth generation (L34).
Recalls
2
Complaints
53
Complaint Rate
5.1
per 10k sold
Below avgEst. Annual Cost
$483
Below avgMajor Repair Risk
12%
NHTSA Rating
5/5
Score Breakdown
Component-weighted complaints normalized by sales volume
Independent repair cost ratings
Recall count weighted by severity
Breadth of reported problem categories
Acceptable reliability — worth considering with a pre-purchase inspection.
Top Issues
2 recalls on record
Generation & Refresh (US)
2021 is year 3 of the Sixth generation (L34).
- Redesigned for the 2019 model year.
- Well-established in its generation — most early issues should be resolved.
- A refresh arrives in 2023.
- 6th generation Altima (US).
What this means for buyers
Well into the generation cycle — most design and manufacturing issues should be resolved by now.
Sixth generation (L34)
Should You Buy the 2021 Nissan Altima?
The 2021 Nissan Altima scores 79/100 ("Good"), placing it in acceptable but not class-leading territory. 2021 is year 3 of the Sixth generation (L34).
With 53 owner complaints, some reported issues may need attention, but we don't yet see evidence of a single dominant failure mode.
A pre-purchase inspection is recommended for used examples, with particular attention to electrical system (14). An extended warranty may provide additional peace of mind.
Compared to the 2022 Nissan Altima, which scored 4 points higher. See also the 2020 Nissan Altima for an earlier comparison.
Pros
- Acceptable reliability score
- $43 cheaper to maintain than avg midsize cars
- Infrequent unscheduled repairs
- Low major repair risk (12%)
Cons
- ELECTRICAL SYSTEM issues reported (14 complaints)
- SERVICE BRAKES issues reported (12 complaints)
Compare 2021 Nissan Altima With
2021 Chevrolet Malibu
Score: 74/100
2021 Toyota Camry
Score: 82/100
2021 Kia K5
Score: 71/100
2021 Honda Accord
Score: 78/100
2021 Hyundai Sonata
Score: 64/100
Common Problem Categories
Safety
- 2 manufacturer recalls issued
Other
- ELECTRICAL SYSTEM (14)
- SERVICE BRAKES (12)
- FORWARD COLLISION AVOIDANCE (5)
- STEERING (5)
- ENGINE (3)
- UNKNOWN OR OTHER (3)
- VISIBILITY (2)
- POWER TRAIN (2)
- SUSPENSION (1)
- SEAT BELTS (1)
- BACK OVER PREVENTION (1)
- AIR BAGS (1)
- SEATS (1)
- TIRES (1)
- STRUCTURE (1)
Recall Overview
2
recalls on record
The 2021 Nissan Altima has 2 recalls on record. This is a low count. Recalls are manufacturer-initiated fixes for safety or compliance issues and are repaired at no cost to the owner at authorized dealerships.
NHTSA.gov →Complaint Breakdown
5.1
per 10k soldSegment avg: 12.3
Safety Incidents
Crashes
4
Fires
1
Injuries
2
Deaths
0
Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.
2021 Nissan Altima Recall Details
2 recalls have been issued for the 2021 Nissan Altima. All recall repairs are performed free of charge at authorized dealerships.
BACK OVER PREVENTION
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."
Consequence
A rearview camera that does not properly display an image can reduce the driver's rear view, increasing the risk of a crash.
Remedy
Dealers will inspect the rearview camera and harness for damage and replace them as necessary. If no damage is found, the dealer will apply protective tape and reroute the rearview camera harness. Repairs will be performed free of charge. Owner notification letters are expected to be mailed October 19, 2023. Owners may contact Nissan's customer service at 1-800-867-7669. Nissan's number for this recall is R23C3.
STEERING
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.
Consequence
A detached tie rod ball joint can cause a loss of steering control, and increase the risk of a crash.
Remedy
Nissan will notify owners, and dealers will tighten the left and right-side tie rod ball joint fasteners, or install new fasteners as necessary, free of charge. The began March 31, 2021. Owners may contact Nissan customer service at 1-800-867-7769. Nissan's number for this recall is PC795.
2021 Nissan Altima NHTSA Safety Ratings
Overall Safety Rating
Crash Test Results by Configuration (expand)
Gas Powertrain
Rollover risk: 9.2%
Safety Technologies
Nissan Altima Repair Costs & Maintenance
Maintenance Rating
4Maintenance rating: 4 out of 5Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.
Est. Annual Maintenance
$483
vs $526 avg for midsize cars
vs $652 avg for all vehicles
Repair Frequency
0.3
unscheduled repair visits per year
Severe Repair Probability
12%
chance of a major repair
Annual Cost Comparison
Category-level averages derived from publicly available industry reports (AAA, CarMD). Model-level estimates produced by Auto Reliability Index.
When Buying a Used 2021 Nissan Altima
Key things to inspect or verify before purchasing, based on the most common reported issues.
- Test door locks with key fob and manual controls
- Check for unexpected braking or warning lights in the AEB system
- Inspect CVT transmission for leaks and power loss
- Verify backup camera functionality in various weather conditions
- Examine steering for looseness or unusual noises
- Inspect engine for abnormal sounds or starting issues
Check Any 2021 Nissan Altima's History Before You Buy
Reliability scores tell you what to expect from the 2021 Altima in general — but every car has its own story. Uncover past accidents, title issues, odometer rollbacks, and service records for a specific Nissan Altima with a free VIN lookup.
Powered by VINExposed.com — free vehicle history reports using public title and safety data.
2021 Nissan Altima Common Problems by Component
53 owner complaints grouped by vehicle system.
ELECTRICAL SYSTEM
14 complaintsOwners of the 2021 Nissan Altima frequently report issues with the vehicle's door locking mechanisms and automatic emergency braking system. Complaints often describe the door locks failing to engage or disengage using the key fob or manual controls, with some owners unable to lock or unlock doors at all. The automatic emergency braking system is also noted for unexpected activation or failure to activate, sometimes accompanied by warning lights, particularly during adverse weather conditions. These problems are typically reported at mileages ranging from 17,000 to 42,500 miles. Safety implications include potential distractions from malfunctioning audio systems and risks associated with unexpected braking or unlocked doors, though no crashes are specifically reported. Buyers should be aware of these recurring electrical issues when considering a used 2021 Altima.
SERVICE BRAKES
12 complaintsSafety-relatedOwners of the 2021 Nissan Altima frequently report issues with the braking system, particularly concerning the automatic emergency braking (AEB) activating unexpectedly and independently. Symptoms commonly described include the brakes engaging without warning, especially under overpasses or approaching intersections, and warning lights related to the vehicle's collision systems illuminating intermittently. Complaints occur at varied mileages, with some issues noted around 40,000 to 45,000 miles. Safety implications are significant, with two reported crashes attributed to brake failures, including instances where the brakes did not engage as expected, leading to collisions. Buyers should be aware of these potential issues, especially regarding the AEB system and its impact on vehicle control.
FORWARD COLLISION AVOIDANCE
5 complaintsOwners of the 2021 Nissan Altima commonly report issues with the Automatic Emergency Braking (AEB) system, where the vehicle unexpectedly applies the brakes without any obstruction present. Symptoms include sudden braking at high speeds and in clear traffic conditions, often accompanied by warning lights and collision alerts. Complaints frequently mention these issues occurring at various mileages, including vehicles with as few as 10,000 miles. The malfunction creates a risk of rear-end collisions and loss of vehicle control. Multiple owners have sought repairs through dealerships, with some reporting repeated unresolved issues despite service visits.
STEERING (5 complaints)
STEERING
5 complaintsSafety-relatedOwners of the 2021 Nissan Altima report issues with steering control, particularly involving detached tie rod ball joints and improperly tightened bolts, which can lead to a loss of steering. Complaints frequently mention symptoms such as unusual noises, popping sounds, and loose steering, with some problems occurring as early as 300 miles. One report includes a crash with injury, highlighting the potential for loss of control. Additionally, a complaint links a vehicle malfunction with a digital display error and brake issues. These patterns suggest potential safety implications for steering reliability in this model.
ENGINE (3 complaints)
ENGINE
3 complaintsOwners report issues with the 2021 Nissan Altima's engine, noting several distinct problems. Complaints frequently mention a jerking transmission that has persisted since purchase, with no resolution despite multiple reports. Additionally, some owners describe abnormal sounds from the engine compartment, with one owner finding metal fragments in the oil at around 51,000 miles. Another issue involves the car failing to start intermittently, initially attributed to a battery problem but later linked to a faulty engine and alternator. These issues occur over varying mileages and can leave the vehicle undrivable, but no crashes or safety incidents are reported. Potential buyers should be aware of these recurring engine-related problems when considering this model.
UNKNOWN OR OTHER (3 complaints)
UNKNOWN OR OTHER
3 complaintsOwners of the 2021 Nissan Altima report several issues related to vehicle functionality. Frequent complaints describe the backup camera becoming unusable in rainy conditions, with additional reports of false alerts when reversing after rain. Another reported issue involves the vehicle unexpectedly applying brakes on its own, both while driving at approximately 35 mph and when accelerating from a stoplight. Additionally, some owners experience complete electrical failure, rendering the vehicle inoperative, with one owner noting this occurred at both 2,000 and 10,000 miles. These issues have safety implications, including unexpected stopping and loss of control, which could be concerning for potential buyers.
VISIBILITY (2 complaints)
VISIBILITY
2 complaintsOwners of the 2021 Nissan Altima report issues related to windshield damage. Complaints frequently mention cracked windshields, sometimes caused by external impacts like rocks while driving. One owner describes difficulty in replacing the windshield due to the risk of damaging the windshield wiper motor, which complicates repairs. Another owner does not report any repair attempts or manufacturer involvement. These issues are noted at approximately 41,000 miles and pose potential safety implications due to compromised structural integrity of the vehicle.
POWER TRAIN (2 complaints)
POWER TRAIN
2 complaintsOwners of the 2021 Nissan Altima frequently report issues with the vehicle's CVT transmission. Common symptoms include a front seal leak and significant power loss while driving, with some reports indicating the issue occurs at speeds of 50 mph or more, which poses a safety risk. These problems are noted at various mileages, with some occurring as early as 25,000 miles and others around 51,000 miles. The recurring nature of these issues suggests potential reliability concerns for used car buyers, especially regarding the longevity of the CVT transmission.
SUSPENSION (1 complaints)
SUSPENSION
1 complaintThe contact owns a 2021 Nissan Altima. The contact stated that while driving at an undisclosed speed, there was an abnormally loud clicking sound coming from the vehicle. No warning light was illuminated. The vehicle was taken to the independent mechanic, where it was diagnosed with fractured front driver's and passenger's side axles. The contact was informed that the driver's and passenger's side axles needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 34,500.
SEAT BELTS (1 complaints)
SEAT BELTS
1 complaintThe backseat driver seatbelt does not click locked. The driver seat squeaks and moves. The driver door locks while trying to open.
When Do 2021 Nissan Altima Problems Start?
Based on owner complaint patterns, here's when common issues tend to appear.
Best & Worst Nissan Altima Years
Best Nissan Altima Years to Buy
The best Nissan Altima year is 2023 with a reliability score of 84/100, rated excellent. Other strong picks include 2022 (83/100) and 2024 (82/100).
Nissan Altima Years to Avoid
The worst Nissan Altima year is 2020 with a score of 71/100, primarily due to electrical system (33) issues. Also avoid 2019 (72/100).
2020
6 recalls · 162 complaints
2019
8 recalls · 230 complaints
Nissan Altima Reliability Score Trend
Nissan Altima reliability has improved in recent years, with newer models scoring an average of 82/100 compared to 75/100 for older years.
Scores 0–100. Higher is better. Current year highlighted.
| Year | Score | Rating |
|---|---|---|
| 2018 | 76/100 | Good |
| 2019 | 72/100 | Good |
| 2020 | 71/100 | Good |
| 2021 | 79/100 | Good |
| 2022 | 83/100 | Excellent |
| 2023 | 84/100 | Excellent |
| 2024 | 82/100 | Excellent |
| 2025 | 78/100 | Good |
Nissan Altima Reliability Compared to Other Years
| Year | Score | vs Prior Year | Rating | Recalls | Complaints |
|---|---|---|---|---|---|
| 2026 | 81/100 (predicted) | — | Predicted | 0 | 0 |
| 2025 | 78/100 | -4 | Good | 1 | 4 |
| 2024 | 82/100 | -2 | Excellent | 1 | 31 |
| 2023 | 84/100 | +1 | Excellent | 0 | 24 |
| 2022 | 83/100 | +4 | Excellent | 0 | 20 |
| 2021(selected) | 79/100 | +8 | Good | 2 | 53 |
| 2020 | 71/100 | -1 | Good | 6 | 162 |
| 2019 | 72/100 | -4 | Good | 8 | 230 |
| 2018 | 76/100 | — | Good | 2 | 217 |
Frequently Asked Questions
Is the 2021 Nissan Altima reliable?
What are the most common problems with the 2021 Nissan Altima?
How many recalls does the 2021 Nissan Altima have?
Is the 2021 Nissan Altima expensive to maintain?
How We Calculate Reliability Scores
Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.
Key Ranking Factors
Complaint Severity
NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.
Repair Costs
Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.
Recall Impact
Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.
Issue Diversity
Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.
Scores are grouped into four tiers:
- 80–100: Excellent — Top-tier reliability, minimal issues
- 60–79: Good — Reliable with some minor concerns
- 40–59: Mixed — Notable issues, research before buying
- 0–39: Risky — Significant problems, proceed with caution
Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.
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