Last updated: 2026-04-09
2021 Porsche Boxster Reliability Report
The 2021 Porsche Boxster scores 62/100 ("Good"). With 2 recalls and 2 owner complaints, reliability is acceptable but not class-leading.
Recalls
2
Complaints
2
Complaint Rate
N/A
Est. Repair Cost
$952
Detailed Score Breakdown
Component-weighted complaints normalized by sales volume
Independent repair cost ratings
Recall count weighted by severity
Breadth of reported problem categories
The Verdict
Acceptable reliability — worth considering with a pre-purchase inspection.
Top Issues to Watch
- SEAT BELTS (1)
- BACK OVER PREVENTION (1)
Generation & Refresh (US)
2021 is year 6 of the Fourth generation (982).
- Redesigned for the 2016 model year.
- Well-established in its generation — most early issues should be resolved.
- 4th generation Boxster (US).
What this means for buyers
Well into the generation cycle — most design and manufacturing issues should be resolved by now.
2016: Fourth generation (982) Launch
Generation start — new platform.
2021: This Model Year
2021 is year 6 of the Fourth generation (982).
Should You Buy the 2021 Porsche Boxster?
At 62/100, the 2021 Porsche Boxster lands in "Good" territory — acceptable, but not class-leading. 2021 is year 6 of the Fourth generation (982).
Owners log 2 complaints on this model year — enough to suggest attention is needed, but no single failure mode dominates yet.
Get a pre-purchase inspection on any used example, with extra attention to seat belts (1). An extended warranty is worth pricing out.
Compared to the 2022 Porsche Boxster, which scored 8 points higher. See also the 2020 Porsche Boxster for an earlier comparison.
Pros
- +Acceptable reliability score
- +Low recall count
- +Low complaint frequency
Cons
- −Above-average repair costs for its class
- −SEAT BELTS (1)
- −BACK OVER PREVENTION (1)
Compare 2021 Porsche Boxster With
2021 BMW 2-Series
Reliability: 72/100
2021 Chevrolet Corvette
Reliability: 71/100
2021 Ford Mustang
Reliability: 54/100
2021 BMW 4-Series
Reliability: 57/100
Common Problem Categories
Safety
LOW RISK- 2 manufacturer recalls issued
Other
MODERATE- SEAT BELTS (1)
- BACK OVER PREVENTION (1)
Recall Overview
2
recalls on record
The 2021 Porsche Boxster carries 2 recalls — a low count. Authorized dealers repair any open recall free of charge, regardless of warranty status.
NHTSA.gov →Complaint Breakdown
2
complaintsSafety Incidents
0
Crashes
0
Fires
0
Injuries
0
Deaths
Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.
2021 Porsche Boxster Recall Details
2 recalls have been issued for the 2021 Porsche Boxster. All recall repairs are performed free of charge at authorized dealerships.
ENGINE
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Porsche Cayman GT4, Cayman GTS 4.0, 718 Spyder, and Boxster GTS 4.0 vehicles. The engine connecting rods may crack and loosen.
Consequence
A loose connection while driving may cause engine damage, a stall, or an oil leak, increasing the risk of a crash or fire.
Remedy
Porsche will notify owners, and dealers will replace the connecting rods or, as necessary, the engine, free of charge. Owner notification letters were mailed May 21, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMA4.
SUSPENSION
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Porsche Taycan Turbo, Taycan Turbo S, Taycan, Taycan 4S, 911 Turbo S Coupe, Cayman, Cayman T, Cayman S, Cayman GT4, 911 Carrera Coupe, 911 Carrera S Coupe, 911 Carrera 4S Coupe, 911 Carrera 4S Targa, 911 Carrera Cabriolet, 911 Carrera S Cabriolet, 911 Carrera 4S Targa Heritage Design Edition, 911 Carrera 4S Cabriolet, 911 Turbo Coupe, 911 Turbo Cabriolet, 911 Turbo S Cabriolet, 718 Spyder, and Boxster vehicles. Certain suspension components may not have been tightened correctly and can loosen.
Consequence
Loose suspension components may detach, causing a sudden loss of vehicle stability and control, and increasing the risk of a crash.
Remedy
Dealers will replace the affected suspension nuts and bolts. Dealers will also inspect surrounding components for damage, and replace any damaged parts as necessary. Repairs will be performed free of charge. Owner notification letters were mailed May 7, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMA3.
Buying a used 2021 Porsche Boxster? Check its history first
Every 2021 Porsche Boxster has a different past. A VIN check reveals hidden accidents, title problems, odometer rollbacks, and open recalls that reliability scores can't show you.
- Accidents
- Open Recalls
- Title History
- Odometer Rollback
2021 Porsche Boxster NHTSA Safety Ratings
Crash Test Results by Configuration (expand)
Gas Powertrain
Rollover risk: 0.0%
Safety Technologies
Porsche BoxsterRepair Costs & Maintenance
Maintenance Rating
2.5Maintenance rating: 2.5 out of 5Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.
Est. Annual Maintenance
$952
vs $801 avg for luxury compact cars
vs $652 avg for all vehicles
Repair Frequency
0.6
unscheduled repair visits per year
Severe Repair Probability
17%
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.
Used Buying Checklist
Key things to inspect or verify before purchasing a 2021 Porsche Boxster.
Inspect seat belt retraction on passenger side for proper function
Test backup camera for consistent image display when in Reverse
Verify all safety systems are operational during test drive
Check for any unresolved recalls related to safety features
2021 Porsche Boxster Common Problems by Component
2 owner complaints grouped by vehicle system.
SEAT BELTS
1 complaintThe seat belt mechanism does not retract on the passenger side of my 2021 Porsche Boxster GTS 718. There was no warning and nothing happened to have caused this. This seat is hardly used as I am the sole driver of this. The seat belt was looked at by a body shop and dealer and we were warned it is an extremely unsafe to have someone in that seat . It does not work as designed and would be dangerous for someone in a short stop or accident etc. At just reached the 4 year mark from when I bought it, seems like a defect in the belt mechanism, according to car experts, as mentioned above .
BACK OVER PREVENTION
1 complaintThere is an intermittent problem where the backup camera fails to display an image when the gear selector is in Reverse. Backup camera reveals hazards that are not visible from the driver’s seat. Dealer has so far had three opportunities to diagnose the problem (and failed). Dealer was provided video of engaging reverse while the display failed to show an image. No other inspections were done. No other warnings, etc. I have had the car for 14 months and this (and other related) issues occurred sporadically during that time
Best & Worst Porsche Boxster Years
Comprehensive reliability analysis based on NHTSA data, owner complaints, and historical performance.
Best Porsche Boxster Years to Buy
Based on reliability index scoreThe best Porsche Boxster year is 2018 with a reliability score of 71/100, rated good. Other strong picks include 2025 (70/100) and 2023 (70/100).
Porsche Boxster Years to Avoid
The worst Porsche Boxster year is 2021 with a score of 62/100, primarily due to seat belts (1) issues.
2021
(Current Model)
Porsche Boxster Reliability Score Trend
Porsche Boxster reliability has remained consistent across model years, averaging 68/100.
Scores 0–100. Higher is better. Current year highlighted.
| Year | Score | Rating |
|---|---|---|
| 2018 | 71/100 | Good |
| 2019 | 65/100 | Good |
| 2020 | 70/100 | Good |
| 2021 | 62/100 | Good |
| 2022 | 70/100 | Good |
| 2023 | 70/100 | Good |
| 2024 | 65/100 | Good |
| 2025 | 70/100 | Good |
Porsche Boxster Reliability Compared to Other Years
Frequently Asked Questions
Is the 2021 Porsche Boxster reliable?
What are the most common problems with the 2021 Porsche Boxster?
How many recalls does the 2021 Porsche Boxster have?
Is the 2021 Porsche Boxster expensive to maintain?
Don’t buy a 2021 Porsche Boxster without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.
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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.
Get notified when new recalls or reliability data is added for the Porsche Boxster.
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Browse More Porsche Models
Porsche 911
Score: 68/100
Porsche Cayenne
Score: 61/100
Porsche Macan
Score: 65/100
Porsche Taycan
Score: 70/100
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