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Mazda CX-30 problems, repairs and warranty value

Review possible repair costs and submitted NHTSA records for the Mazda CX-30. Compare documented symptoms and manufacturer repair guidance, then choose your model year for its available records and repair estimates.

7model-year profiles
254submitted complaints
7unique vehicle recall campaigns
GasolineEPA powertrain choices
Animated diagnostic illustration for the Mazda CX-30

Model records

What changes the warranty calculation

The Mazda CX-30 records contain 254 submitted complaints across 7 matched model years. The median is 31 reports per matched year. NHTSA source snapshot: 2026-10-18.

The 2021 record contains 101 complaint reports, the highest raw count among matched years here; other years may tie. Vehicle sales and time on the road differ, so this comparison does not establish a failure rate.

Engine replacement or major internal repair has the highest arithmetic midpoint for parts in the applicable planning estimates, at $8,000 before labor. Confirm the configuration and remaining factory coverage before using this broad estimate to compare a service contract.

10 recall/model-year entries. A campaign can cover several years; the unique campaign count removes that repetition. Missing model-name matches remain unavailable.

Problem research and repair guidance

Mazda CX-30: symptoms, affected vehicles and documented fixes

Match the symptom and the exact vehicle scope before arranging work. The imported catalogue is an editorial index of source documents, not an independent safety authority. Recall text is checked against NHTSA; each record links to the evidence that supports its scope and remedy.

5documented issue files
4vehicle systems

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

AIR BAGS

Official safety recall2024, 2025Campaign 25V357000

AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE: recall 25V357000

Air bags that do not deploy in the event of a crash increase the risk of injury.

Mazda North American Operations is recalling certain 2024-2025 Mazda3 and CX30 vehicles. The Sophisticated Air Bag Sensor (SAS) units may set an error code and deactivate the air bags, due to a low battery condition.

Condition in the official record

Mazda North American Operations is recalling certain 2024-2025 Mazda3 and CX30 vehicles. The Sophisticated Air Bag Sensor (SAS) units may set an error code and deactivate the air bags, due to a low battery condition.

Which vehicles the source covers
  • NHTSA model names: CX-30. Model years: 2024, 2025.
  • NHTSA campaign 25V357000
  • The complete campaign lists 171,412 potentially affected units across all listed vehicles.
  • A make, model and year match does not establish VIN eligibility.

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: AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE

Published recall remedy

Dealers will reprogram the SAS unit with improved software or replace the unit, free of charge. Owner notification letters were mailed July 24, 2025. Mazda's number for this recall is 7525E.

Consequence in the NHTSA record: Air bags that do not deploy in the event of a crash increase the risk of injury.

Official recall remedyManufacturer or authorized dealer · Confirm with the dealer

Dealers will reprogram the SAS unit with improved software or replace the unit, free of charge. Owner notification letters were mailed July 24, 2025. Mazda's number for this recall is 7525E.

Limit: Confirm VIN eligibility and current remedy instructions with the manufacturer.

Check the complete VINVIN lookup · Before arranging repairs

Check the 17-character VIN at NHTSA.gov/recalls and ask the manufacturer whether this campaign remains open for the vehicle.

Limit: The model-year list is not proof that an individual vehicle is affected.

Evidence for this issue
Open this problem file →

Source review: 2026-10-18

Body electrical

Manufacturer documented2020, 2021, 2022

Liftgate switch corrosion and possible battery drain

A liftgate switch that fails after moisture exposure appears in Mazda's connector-corrosion bulletin, especially when battery drain follows.

Mazda documented water reaching the liftgate switch connector on specified CX-30 vehicles. Moisture or corrosion can stop the liftgate-mounted lock switch from working, may store B11C4:23 and, when the connector is rusted, may also drain the battery. A weak battery, unrelated wiring fault or latch problem can produce overlapping symptoms.

Symptoms to compare
  • The lock switch on the interior liftgate trim does not operate the door locks
  • The concern may appear after a high-pressure wash or condensation
  • Moisture or corrosion is found at the switch connector during professional inspection
  • The 12-volt battery may discharge while the vehicle is parked

Other ways owners describe it: CX-30 battery dead after car wash; liftgate lock button not working; rear hatch switch stopped working; tailgate button does nothing; battery keeps going flat; water behind Mazda rear emblem; B11C4 code.

Diagnostic trouble codes: B11C4:23. A code identifies a condition to investigate, not a part to replace.

Which vehicles the source covers
  • US-specification, Mexico-built 2020 to 2022 Mazda CX-30 vehicles
  • The bulletin also lists specified Mazda3, CX-5 and MX-30 vehicles
  • Switch equipment and production details should be checked by VIN

The bulletin uses model, production and equipment criteria rather than a mileage threshold. Warranty application was limited to verified complaints on eligible vehicles.

Manufacturer position and diagnosis

Mazda directs technicians to inspect the switch connector for moisture and corrosion. The published repair waterproofs a sound connector or replaces corroded switch and harness components before sealing the connection.

Inspect and repair the liftgate switch connectionAutomotive electrical technician · Inspection and parts-dependent repair

A Mazda technician removes the trim, checks for water and rust, replaces the affected switch or harness connector when needed, then seals the connection using the bulletin procedure.

Limit: Corroded terminals should not simply be taped over. The bulletin separates clean, wet connections from parts that require replacement.

Document moisture timing and remove parked accessoriesBasic observation · 5 minutes

Note whether the fault followed a wash or rain, test the liftgate switch once while parked and unplug aftermarket devices before the vehicle sits. Tell the technician if the battery has already needed a jump.

Limit: Do not remove wet trim or probe connectors with the battery connected. Avoid directing a pressure washer at the rear emblem until the fault is inspected.

Evidence for this issue
Open this problem file →

Source review: August 2, 2026

SERVICE BRAKES, HYDRAULIC

Official safety recall2022, 2023Campaign 23V275000

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE: recall 23V275000

Reduced braking ability can increase the distance required to stop the vehicle, increasing the risk of a crash.

Mazda North American Operations (Mazda) is recalling certain 2022-2023 CX-30 and 2023 CX-50 vehicles. The anti-lock brake system (ABS) Hydraulic Control Unit (HCU) may be damaged, which can result in reduced braking ability.

Condition in the official record

Mazda North American Operations (Mazda) is recalling certain 2022-2023 CX-30 and 2023 CX-50 vehicles. The anti-lock brake system (ABS) Hydraulic Control Unit (HCU) may be damaged, which can result in reduced braking ability.

Which vehicles the source covers
  • NHTSA model names: CX-30. Model years: 2022, 2023.
  • NHTSA campaign 23V275000
  • The complete campaign lists 2,410 potentially affected units across all listed vehicles.
  • A make, model and year match does not establish VIN eligibility.

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: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

Published recall remedy

Dealers will inspect and replace the ABS HCU, as necessary, free of charge. Owner notification letters were mailed June 12, 2023. Owners may contact Mazda customer service at 1-800-222-5500 Option 6. Mazda's number for this recall is 5823D.

Consequence in the NHTSA record: Reduced braking ability can increase the distance required to stop the vehicle, increasing the risk of a crash.

Official recall remedyManufacturer or authorized dealer · Confirm with the dealer

Dealers will inspect and replace the ABS HCU, as necessary, free of charge. Owner notification letters were mailed June 12, 2023. Owners may contact Mazda customer service at 1-800-222-5500 Option 6. Mazda's number for this recall is 5823D.

Limit: Confirm VIN eligibility and current remedy instructions with the manufacturer.

Check the complete VINVIN lookup · Before arranging repairs

Check the 17-character VIN at NHTSA.gov/recalls and ask the manufacturer whether this campaign remains open for the vehicle.

Limit: The model-year list is not proof that an individual vehicle is affected.

Evidence for this issue
Open this problem file →

Source review: 2026-10-18

Official NHTSA safety recall2020Campaign 20V346000

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER: recall 20V346000

Loose brake calipers can reduce braking performance or interfere with wheel rotation, affecting vehicle handling. Either of these scenarios can increase the risk of a crash.

Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 and Mazda3 vehicles. The front brake caliper mounting bolts may not have been tightened properly during assembly, possibly allowing the calipers to loosen.

Condition in the official record

Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 and Mazda3 vehicles. The front brake caliper mounting bolts may not have been tightened properly during assembly, possibly allowing the calipers to loosen.

Which vehicles the source covers
  • NHTSA model names: CX-30. Model years: 2020.
  • NHTSA campaign 20V346000
  • The complete campaign lists 24,037 potentially affected units across all listed vehicles.
  • A make, model and year match does not establish VIN eligibility.

Campaign 20V346000 is based on the recalled vehicle population and VIN, not a published mileage threshold. Mileage alone cannot confirm or exclude it.

Component in the source: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

Jurisdiction: United States

Published recall remedy

Mazda will notify owners, and dealers will inspect the front brake caliper bolts, tightening them as necessary. If bolts are missing, the affected brake caliper will be replaced. Repairs will be performed free of charge. The recall began July 24, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4420F.

Consequence in the NHTSA record: Loose brake calipers can reduce braking performance or interfere with wheel rotation, affecting vehicle handling. Either of these scenarios can increase the risk of a crash.

Official recall remedyManufacturer or authorized dealer · Confirm with the dealer

Mazda will notify owners, and dealers will inspect the front brake caliper bolts, tightening them as necessary. If bolts are missing, the affected brake caliper will be replaced. Repairs will be performed free of charge. The recall began July 24, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4420F.

Limit: Confirm VIN eligibility and current remedy instructions with the manufacturer.

Check the complete VINVIN lookup · Before arranging repairs

Check the 17-character VIN at NHTSA.gov/recalls and ask the manufacturer whether this campaign remains open for the vehicle.

Limit: The model-year list is not proof that an individual vehicle is affected.

Evidence for this issue
Open this problem file →

Source review: 2026-10-18

STRUCTURE

Official safety recall2020, 2021Campaign 21V086000

STRUCTURE:BODY:HATCHBACK/LIFTGATE: recall 21V086000

If the power liftgate unexpectedly lowers while a person is accessing the rear storage area of the vehicle, it can increase their risk of injury.

Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-30 vehicles. When fully opened, the power liftgate may partially lower unexpectedly when the vehicle is parked facing uphill on a slope.

Condition in the official record

Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-30 vehicles. When fully opened, the power liftgate may partially lower unexpectedly when the vehicle is parked facing uphill on a slope.

Which vehicles the source covers
  • NHTSA model names: CX-30. Model years: 2020, 2021.
  • NHTSA campaign 21V086000
  • The complete campaign lists 13,857 potentially affected units across all listed vehicles.
  • A make, model and year match does not establish VIN eligibility.

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: STRUCTURE:BODY:HATCHBACK/LIFTGATE

Published recall remedy

Mazda will notify owners, and dealers will update the power liftgate control module software and inspect the serial number of the power liftgate drive unit, replacing it if necessary, free of charge. The recall began April 8, 2021. Owners may contact Mazda customer service at 1-800-222-5500 option 4. Mazda's number for this recall is 4621B.

Consequence in the NHTSA record: If the power liftgate unexpectedly lowers while a person is accessing the rear storage area of the vehicle, it can increase their risk of injury.

Official recall remedyManufacturer or authorized dealer · Confirm with the dealer

Mazda will notify owners, and dealers will update the power liftgate control module software and inspect the serial number of the power liftgate drive unit, replacing it if necessary, free of charge. The recall began April 8, 2021. Owners may contact Mazda customer service at 1-800-222-5500 option 4. Mazda's number for this recall is 4621B.

Limit: Confirm VIN eligibility and current remedy instructions with the manufacturer.

Check the complete VINVIN lookup · Before arranging repairs

Check the 17-character VIN at NHTSA.gov/recalls and ask the manufacturer whether this campaign remains open for the vehicle.

Limit: The model-year list is not proof that an individual vehicle is affected.

Evidence for this issue
Open this problem file →

Source review: 2026-10-18

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 Mazda CX-30?

No model-specific individual-repair price keys are retained for Mazda CX-30 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 match19 source rows

The mapped years for this model can include different equipment. Use the VIN and original specifications to identify the actual configuration.

Documented repair paths1 selected file

The manufacturer instruction can describe software, inspection or a smaller component before a complete assembly replacement.

Price-key audit reviewed October 18, 2026; EPA source snapshot 2026-08-07. Individual-repair ranges and annual repair-budget references are different datasets.

EPA configuration facts

Engines and drivetrains sold under this model name

FuelEconomy.gov lists 19 matched Mazda CX-30 configurations across the model years shown here. Trim, engine and drive layout can change which repairs belong in a warranty comparison.

Vehicle classSmall SUV
Fuel choicesGasoline
Drive layoutsFour-wheel drive and Front-wheel drive
Engine range2.5 L; 4 cylinders
EPA efficiency range25 to 29 mpg
Transmission typesAutomatic

These are ranges across EPA configurations, not the specification of every trim. The VIN and original window sticker settle the exact equipment. Source: FuelEconomy.gov vehicle data, dataset updated 2026-08-07.

Possible repair costs

Major repairs for this powertrain

These estimates use parts benchmarks and modeled independent-shop labor rates for 50-metro reference, so you can compare models using the same labor assumptions.

RepairEstimated range
Engine replacement or major internal repair$6,095 to $16,964
Transmission replacement$6,079 to $6,995
Transfer case replacement$2,189 to $8,192
Turbocharger replacement$1,662 to $6,524
Head gasket replacement$2,339 to $3,728
Strut and control arm repair$1,053 to $4,545
Compare a warranty quote with repair costsAll Mazda models