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Model-year warranty research

Is an Extended Warranty Worth It for a 2021 Mazda CX-9?

Review estimated repair costs, owner complaints, recalls and manufacturer communications for this model year. The records describe submitted cases; they do not tell you how likely a failure is.

Run the worth-it calculator for this car →
38complaint reports
1recall campaigns
420manufacturer communications
6leading reported components
Animated diagnostic view representing the 2021 Mazda CX-9

Model-year records

What the 2021 record can and cannot say

Compared with other Mazda CX-9 years here, the 2021 total is approximately at the median complaint count in these records. Its raw count is 38, with no denominator for vehicles sold.

Engine is the most common displayed tag, with 20 reports. Its 52.6% share describes submitted complaints, not all vehicles on the road.

Engine replacement or major internal repair has the highest midpoint estimate for parts alone, at $7,000. Local labor adds to the bill, while claim rules can limit what the plan pays.

Problem research and repair guidance

2021 Mazda CX-9: symptoms, affected vehicles and documented fixes

Match the symptom and the exact vehicle scope before arranging work. These files preserve the FixCatalogue research, with the manufacturer position, safe checks and original evidence available here.

1documented issue file
1vehicle system

1 recall file · 0 other manufacturer files. These are editorial file counts, not distinct campaign totals, failure rates or a complete recall history.

Body & structure

Official safety recall2020, 2021Campaign 21V750000

Seat component may not remain secure

The left-side second-row seat may unexpectedly slide forward during a crash.

NHTSA campaign 21V750000 includes certain 2020 to 2021 Mazda CX-9 vehicles. Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-9 vehicles equipped with 60/40 split bench second-row seats. The left-side second-row seat may unexpectedly slide forward during a crash. A seat that slides forward during a crash can transfer excessive force onto a belted occupant, increasing their risk of injury.

Symptoms to compare
  • The seat may move, feel loose or fail to adjust or lock as intended
  • An open campaign appears when the complete VIN is checked
  • Some recalled vehicles may show no advance warning before the component fails

Other ways owners describe it: seat feels loose; seat moves while driving; seat will not lock; seat frame makes noise; power seat stopped working; seat recall.

Which vehicles the source covers
  • 2020 to 2021 Mazda CX-9
  • NHTSA campaign 21V750000
  • The manufacturer filing lists 8,648 potentially affected units across the complete campaign.
  • VIN eligibility determines whether this recall applies to an individual vehicle

Safety recall eligibility is based on the VIN and campaign scope, not ordinary warranty mileage. Check the complete VIN even when the vehicle is outside its original warranty.

Component in the source: SEATS:MID/REAR ASSEMBLY

Published recall remedy

Dealers will replace the internal parts of the affected second-row seats, free of charge. Owner notification letters were mailed November 4, 2021. Owners may contact Mazda customer service at 1-800-222-5500, Option 4.

Use the official recall remedyAuthorised dealer · Confirm with VIN

Dealers will replace the internal parts of the affected second-row seats, free of charge. Owner notification letters were mailed November 4, 2021. Owners may contact Mazda customer service at 1-800-222-5500, Option 4.

Limit: Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.

Check the complete VIN before arranging workBasic check · 5 minutes

Enter the 17-character VIN in NHTSA's recall lookup and ask the manufacturer or an authorised dealer to confirm whether the campaign is open for this vehicle.

Limit: A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.

Evidence for this issue
  • 21V750000: Official campaign record for Mazda CX-9

    NHTSA safety recall · Sep 27, 2021

    NHTSA campaign data lists the defect, safety consequence and manufacturer remedy. The manufacturer filing lists 8,648 potentially affected units across the complete campaign.

Open this problem file →

Source review: August 3, 2026

Confirm who pays before authorizing work

A recall remedy follows the campaign and VIN eligibility. A service bulletin provides diagnosis or repair instructions; it does not by itself promise payment. Manufacturer warranty extensions and support programs have their own conditions.

Compare recalls, bulletins and warranty extensions →

Keep a current problem separate from future coverage

These files do not supply a shop quote. Ask for a diagnosis and written estimate, then check recall remedies or existing coverage. A new vehicle service contract generally excludes pre-existing conditions.

Prepare a useful description for the mechanic →

Each file retains its original source review date. Historical remedy wording can change; check the current manufacturer notice and NHTSA VIN lookup for your vehicle. The separately dated NHTSA counts elsewhere on this page use a different dataset and scope.

Read the evidence for this vehicle

What can the data tell you about 2021 Mazda CX-9?

No model-specific individual-repair price keys are retained for Mazda CX-9 in this library. Generic parts and labor estimates, public records and separate annual cost references may still be available.

Individual-repair price scopeGeneric inputs

Model-level range presence is a source-coverage check. It does not confirm that a repair fits every engine or model year.

EPA configuration match2 source rows

This model year can include different equipment. Use the VIN and original specifications to identify the actual configuration.

Documented repair pathsCheck the source

Recall and communication counts describe records. They cannot establish a breakdown probability or current VIN status.

Price-key audit reviewed October 12, 2026; EPA source snapshot 2026-08-07. Individual-repair ranges and annual repair-budget references are different datasets.

Cost-library audit

The evidence behind a repair estimate

In our 44-category library, 24 categories have attached published benchmarks and 20 use planning assumptions. The audit separates the appearance of a precise total from the strength and scope of its inputs.

44 repair categories in our current library; a content audit, not a market survey

See the analysis, charts and method →

Campaign-reference audit

One campaign can create many entries

In the selected collection, 1,186 files with extractable identifiers refer to 771 distinct campaign IDs. The difference is a counting-unit issue, not evidence of additional unique recalls or a vehicle's failure risk.

1,200 selected recall files; campaign references extracted from their evidence fields

See the analysis, charts and method →

Sources and methods

What each source tells you

NHTSA records: 38 submitted complaints, 1 recalls and 420 manufacturer communications. These are report counts, not failure probabilities.

EPA vehicle details: 2 matched fuel-economy configurations help us leave out repairs for equipment this model year does not have.

Repair-cost estimates: We model 32 applicable repairs beyond normal wear items, using published benchmarks where available plus parts and independent-shop labor assumptions. These ranges are not dealer quotes, repair-shop quotes or invoices.

Read the full research and repair-cost methodology.

Vehicle configuration

2021 EPA specification range

The official dataset contains 2 matched configurations for this model year. The range reflects trim and drivetrain choices, not changes to the complaint count.

Vehicle classSmall SUV
Fuel choicesGasoline
Drive layoutsFour-wheel drive and Front-wheel drive
Engine range2.5 L; 4 cylinders
EPA efficiency23 to 24 mpg
Transmission typesAutomatic

EPA figures vary by configuration. Confirm the exact engine, drive layout and fuel system from the VIN or original window sticker. Source: FuelEconomy.gov vehicle data, updated 2026-08-07.

Estimated repair bills

Major repair cost range

These ranges combine parts and labor benchmarks with modeled independent-shop rates for Dallas, TX. We adjust supported repairs using published estimates for this model and leave out repairs that do not fit its model-year specifications.

RepairSystemEstimated range
Engine replacement or major internal repairEngine$5,860-$16,847
Transmission replacementTransmission$3,492-$11,122
Transfer case replacementDriveline$2,044-$8,129
Turbocharger replacementTurbo and Supercharger$1,520-$6,465
Head gasket replacementEngine$2,286-$3,619
Timing chain replacementEngine$1,895-$2,968
Catalytic converter replacementExhaust and emissions$2,241-$2,517
Steering rack replacementSteering$2,164-$2,584
Strut and control arm repairSuspension$946-$4,495
Fuel injector set replacementFuel System$772-$4,607

Compare years

Other Mazda CX-9 model years

202312 reports · 0 recalls20229 reports · 0 recalls202138 reports · 1 recalls202019 reports · 1 recalls201953 reports · 2 recalls2018126 reports · 2 recalls201761 reports · 0 recalls2016104 reports · 0 recalls201535 reports · 2 recalls
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