Last updated: 2026-10-10

RELIABILITY SCORE: 62/100 (GOOD)

2021 Porsche Boxster Reliability Report

The 2021 Porsche Boxster has a good reliability standing but is the weakest Boxster year we score, with engine and suspension recalls on file.

Full Breakdown Compare Models

Recalls

Complaints

Complaint Rate

N/A

Est. Repair Cost

$952

Detailed Score Breakdown

Complaint SeverityN/A

Component-weighted complaints normalized by sales volume

Repair Costs50/100

Independent repair cost ratings

Recall Impact80/100

Recall count weighted by severity

Issue DiversityN/A

Breadth of reported problem categories

The Verdict

Consider

Weakest of the eight scored Boxster years, with engine and suspension recalls that neighboring 2020 and 2022 models do not have.

Top Issues to Watch

SEAT BELTS (1)
BACK OVER PREVENTION (1)

Generation & Refresh (US)

Post-Redesign (Year 6)

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?

Buyers can consider this year, but it is the weakest Boxster of the eight model years we score. Its reliability standing is still good. Against other 2021 sedans, though, it falls below average. The 2020 and 2022 Boxsters both rate better, and neither has any owner complaints or recalls on file.

Two federal recalls cover this year, one for the engine and one for the suspension. The data does not say what each recall involves, so check the details before you assume how serious they are. Owners have filed only two complaints, and the records do not describe symptoms or mileage. Model-wide, independent repair-cost data puts yearly repairs at $952, against $801 for the class.

Before buying, ask for proof that both recalls were completed. A Porsche dealer can look up open recalls by VIN. If you are flexible on year, price a 2020 or 2022 next to it, since both have a cleaner record.

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

Good

2021 Chevrolet Corvette

Reliability: 71/100

Good

2021 Ford Mustang

Reliability: 54/100

Mixed

2021 BMW 4 Series

Reliability: 57/100

Mixed

Common Problem Categories

Safety

LOW RISK

2 manufacturer recalls issued

Other

MODERATE

SEAT BELTS (1)
BACK OVER PREVENTION (1)

See detailed breakdown by component ↓

Recall Overview

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

complaints

LowAvgHigh

Very Low

Safety Incidents

Crashes

Fires

Injuries

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.

21V2000002021-03-24

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.

21V1570002021-03-10

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.

VIN History Report

Buying a used 2021 Porsche Boxster? Check its history first

Seat belts problems lead owner complaints about the 2021 Porsche Boxster, and 2 recalls were issued for it. A VIN check shows whether this car's recall work was done, plus accident, title, and odometer history.

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

Dynamic Head Restraints (Not Available)Head Restraint (Driver, Front Passenger)Advanced Belt Feature (Standard)Adjustable Upper Belt Anchorage (Not Available)Seat Belt Reminder System (Driver)Frontal Air Bag (Driver, Front Passenger)Head-Thorax (Driver, Front Passenger)Knee (Driver, Front Passenger)Additional Air Bags (N/A)Meets Side Air Bag Out-of-Position Requirements (N/A)LATCH Locations (Not Available)Safety Power Windows (Anti-Pinch) (Standard)Safety Power Windows (Anti-Pinch) locations (Driver, Front Passenger)

View full safety data on NHTSA.gov →

Porsche BoxsterRepair Costs & Maintenance

Maintenance Rating

2.5

Based 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

Boxster

$952

Category Avg

$801

All Vehicles

$652

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 complaint

2025-10-11

The 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 complaint

2021-06-01

There 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

Best Porsche Boxster Years to Buy

Based on reliability index score

Top Pick

Good

Porsche Boxster Years to Avoid

Good

2021

(Current Model)

2Recalls

2Complaints

See full Porsche Boxster years-to-avoid analysis

Porsche Boxster Reliability Score Trend

Scores 0–100. Higher is better. Current year highlighted.

Porsche Boxster reliability scores by year
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

Reliability scores compared across model years
Year	Score	vs Prior Year	Rating	Recalls	Complaints
2025	70/100	+5	Good	0	0
2024	65/100	-5	Good	2	1
2023	70/100	0	Good	0	1
2022	70/100	+8	Good	0	0
2021(selected)	62/100	-8	Good	2	2
2020	70/100	+5	Good	0	0
2019	65/100	-6	Good	1	0
2018	71/100	—	Good	2	0

Frequently Asked Questions

Is the 2021 Porsche Boxster reliable?

Yes, its reliability standing is good. It is still the weakest of the eight Boxster years we score, and it rates below average against other 2021 sedans. The 2020 and 2022 Boxsters both rate better and have no complaints or recalls on file.

What are the most common problems with the 2021 Porsche Boxster?

The data shows no widespread problem. Owners filed two complaints, and the records give no symptoms or mileage. The clearest issues are the two federal recalls, one for the engine and one for the suspension. Ask the seller whether both were completed.

Does the 2021 Porsche Boxster have recalls?

Yes. Federal recall records list two for this year, covering the engine and the suspension. The data does not describe the defects or the fixes. Run the VIN through a Porsche dealer to see whether either recall is still open on the car you are considering.

How much does it cost to repair a Porsche Boxster?

Independent repair-cost data estimates $952 a year for the Boxster model-wide. That is higher than the $801 typical for its class. The figure covers every scored year of the model, not only the 2021, so use it as a general guide to ownership cost.

Is the 2021 Porsche Boxster better or worse than the 2020 and 2022?

It is worse on our records. The 2020 and 2022 Boxsters both rate better and have no owner complaints or recalls on file. The 2021 has two of each, which is why it ranks last among the eight scored years.

Don’t buy a 2021 Porsche Boxster without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.

Look Up a VIN →

How we score the 2021 Porsche Boxster

Of the four inputs behind this score, the 2021 Porsche Boxster does best on recall impact (80/100) and worst on repair costs (50/100). Scores weight complaint severity at 35%, repair costs at 30%, recall impact at 20%, and the spread of complaints across systems at 15%, with complaint counts adjusted for US sales. Read the full methodology.

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