2020 Mazda CX-30
The 2020 Mazda CX-30 is sold in the U.S. as a gas compact SUV with 4 EPA-rated configurations. The most efficient version, the CX-30 2WD, is EPA-rated at 28 mpg combined. NHTSA lists 3 recall campaigns for this model year, which gives it a Safety Signal grade of B. Owners have filed 34 complaints, most often about the service brakes. NHTSA crash-tested it at 5 stars overall.

Specs & fuel economy
Source: EPA fueleconomy.gov| Configuration | Powertrain | Drive | Engine / motor | City | Hwy | Comb | Annual fuel* |
|---|---|---|---|---|---|---|---|
| CX-30 2WD | Gas | FWD | 2.5L 4-cyl | 25 | 33 | 28 | $2,400 |
| CX-30 2WD | Gas | FWD | 2.5L 4-cyl | 25 | 33 | 28 | $2,400 |
| CX-30 4WD | Gas | 4WD | 2.5L 4-cyl | 25 | 32 | 27 | $2,500 |
| CX-30 4WD | Gas | 4WD | 2.5L 4-cyl | 24 | 31 | 26 | $2,600 |
*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 42366, 42367, 42425, 42424.
Emissions & certification
Source: EPA emission certificates| Configuration | Smog rating | Emission standard | Where it can be sold new | SmartWay |
|---|---|---|---|---|
| CX-30 2WD, CX-30 4WD | 7 / 10 | California LEV-III SULEV30 / Federal Tier 3 Bin 30 | All 50 states (federal, all altitudes); California and states following California standards | — |
Certified for all fifty states, so it can be registered new anywhere in the U.S.
The smog rating scores tailpipe pollutants other than greenhouse gases, 1 (worst) to 10 (best), and is comparable only within a model year. The standard is the federal bin or California tier the configuration was certified to. Both come from the EPA certificate behind the window sticker.
Specifications filed with NHTSA
Source: NHTSA vPICDimensions Exterior
| Body style | Sport Utility Vehicle [SUV]/Multipurpose Vehicle [MPV] |
| GVWR class | Class 1C: 4,001 - 5,000 lb (1,814 - 2,268 kg) |
Engine Basics
| Cylinders | 4 |
| Displacement | 2.5 L |
| Engine configuration | In-Line |
Engine Output
| Horsepower | 186 hp |
Fuel Economy
| Fuel | Gasoline |
Seating
| Seat rows | 2 |
| Seating capacity | 5 seats |
Transmission
| Drivetrain | 4x2 |
| Transmission | Automatic |
| Transmission speeds | 6 |
Driver assistance
Standard: Adaptive cruise control, Anti-lock brakes, Automatic emergency braking, Backup camera, Electronic stability control, Forward collision warning, Lane departure warning, Lane keeping assist, Pedestrian automatic emergency braking
Optional: Blind-spot monitoring, Rear cross-traffic alert
Filed by the manufacturer with NHTSA under the federal vehicle-identification rule and decoded from the VIN pattern — not a manufacturer press kit, so it describes the configurations we could identify rather than every trim (seen: Base, Preferred Pkg, Premium Pkg, Select Pkg). Figures for the trim you are looking at may differ.
Dimensions & weight
Source: Transport Canada| Length | 172.8 in |
| Width (body, without mirrors) | 70.9 in |
| Height | 61.8 in |
| Wheelbase | 104.3 in |
| Track, front | 61.8 in |
| Track, rear | 61.0 in |
| Curb weight | 3,146–3,342 lb |
| Weight distribution, front/rear | 60/40 to 62/38 |
Measured by Transport Canada for its Canadian Vehicle Specifications database, which covers the North American versions of each model — here 2 configurations: CX30 4-door SUV AWD, CX30 4-door SUV FWD. Where a range is shown, those versions differ. Width is the body without mirrors, which is why it can read narrower than a brochure figure. Before we used it we checked it against the US manufacturer press kits we hold (27 Sep 2026): wheelbase agreed within 1% on every vehicle we could compare, length on 98%, and the curb weight fell inside the manufacturer's range on 96%. Source dataset. Contains information licensed under the Open Government Licence – Canada. Licence.
Factory warranty running out?
The 2020 Mazda CX-30 is in the years where transmission, electronics and drivetrain repairs land on the owner. What an extended plan does and does not cover is worth reading before a dealer quotes you one.
What to check before you buy →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Recalls (3)
Source: NHTSA recall databaseService Brakes, Hydraulic
4420FFuel System, Gasoline
4520FThese are vehicle campaigns — the ones the automaker filed against this model. NHTSA also records equipment recalls, filed by a parts maker against a component (a tyre, a child seat, an aftermarket part), and those are not listed here or counted above. nhtsa.gov/recalls shows both for a VIN.
Whether any of this applies to one specific CX-30
A campaign covers a build range, not a model year, so two identical-looking cars from 2020 can differ. Both of these check a VIN against the manufacturer’s own list, free, in about ten seconds. Mazda publishes its own lookup because federal rule 49 CFR 573.15 requires it to, and to keep it current to within seven days.
Hear about a recall before the letter does
The manufacturer’s letter is the last step of a recall: it has up to 60 days after filing to mail owners, at the address on the registration. We email you the day NHTSA posts a recall on the 2020 Mazda CX-30, with what to do next. Nothing else, ever — no newsletter, no marketing, one-click unsubscribe in every message.
Parts & accessories for the 2020 Mazda CX-30
Search by fitment on eBay Motors — OEM take-offs, aftermarket, and the trim pieces dealers no longer stock. The listing and the price are the seller's.
Find parts for this CX-30 →Owner complaints
Source: NHTSA complaint database1 involved a crash · 0 a fire · 0 injuries · 0 deaths reported
12 per 10,000 built · Mazda reported 29,155 CX-30 built (its Early Warning production report to NHTSA)
Filed per year: 2020: 8 · 2021: 2 · 2022: 4 · 2023: 3 · 2024: 8 · 2025: 5 · 2026: 4
Most-cited components
In owners' own words
Filed with NHTSA by the people who own these cars, one per problem area. Quoted as written, with anything identifying removed.
There is a module that should connect to the hatch door to open. That module in no longer available. Without the hatch door opening, in case of side impact and being pushed into something else, there is no way to get out of the car. This poses a serious safety hazard.
I own 2020 Mazda cx 30 with 66000 miles. The transmission was shifting with jerky motions. On july 14, 2025 I brought the car to palisades Mazda in rockland county new york to have transmission looked at and to change transmission fluid changed. After I dropped the car off later that day I got a call that the transmission was condemned.
The contact owns a 2020 Mazda CX-30. The contact stated that after starting the vehicle, the instrument panel made an abnormal sound. The contact then noticed that the odometer had inadvertently rolled back to 9,999 miles. The vehicle was not diagnosed or repaired by an independent mechanic or dealer.
Low Engine Oil Light keeps appearing at seemingly random intervals. I will heat up my vehicle, begin driving, and sometimes after 10 minutes, sometimes after 20 minutes it will come on. I drove 2.5 hours and it did not come on at all. It first started Friday 11/29 and was driven to and from a few places and came on 50% of the time.
Rear coil spring broke at ~33,000 miles under normal driving conditions. No warnings given in vehicle safety system and not included in recommended maintenence. Seen when inspected by independent service center. Cannot safely drive vehicle until replaced
Front and rear brakes premature wear, would have failed safety inspection under 30,000 miles but brakes were inspected just outside of warranty with metal on metal. RIGHT rear coil spring snapped lower middle of coil while driving on flat even ground. Just outside of warranty
Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.
Reported by Mazda itself: 7 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 8 injured, as claimed, not verified — about 24 per 100,000 built. Every CX-30 model year, by year and system → Dated and by system, they are exhibit F of the defect dossier.
Crash ratings
Source: NHTSA NCAP| Configuration | Overall | Frontal | Side | Rollover | Rollover risk |
|---|---|---|---|---|---|
| SUV AWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★☆ | 15% |
| SUV FWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★☆ | 16% |
NHTSA New Car Assessment Program. Standard driver-assist: forward collision warning, lane departure warning, automatic emergency braking.
Service bulletins & campaigns
Source: NHTSA manufacturer communications- 15 years or 150,000 miles, whichever comes first · Mazda warranty extension SSPD8SSPD8 - Check Engine Light ON with DTC P0126:00 - WARRANTY EXTENSION For certain 2018-2025MY CX-5, 2019-2023MY Mazda3, 2019-2022MY CX-3, 2018-2021MY Mazda6, 2020-2023MY CX-30 that are equipped with…
- Term not in NHTSA’s summary · Mazda warranty extension CSP12DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a recall campaign.
The term and the vehicles it covers are the manufacturer’s, as NHTSA’s summary of each filing states them; a dealer checks one particular car by its VIN. Every Mazda warranty extension (9) → · Every warranty extension on file, all makes →
Most often about: Electrical System, Equipment, Engine, Equipment Adaptive/Mobility, Unknown Or Other.
- SA-042-26a Service bulletin2026-09-17 · Unknown Or Other
- Mazda Connected Services - Frequently Asked Questions (FAQ) This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text. SA-042/26 06/30/26 DESCRIPTION Frequently Asked Questions (FAQ) Index General Questions MAZDA CONNECT Indication Setup and Getting Started Dealer Processes Registration / Enrollment / Take-Over Customer Subscription Status WI-FI Gene
- SA-041-26a Service bulletin2026-09-11 · Electrical System
- DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket devices may be the cause of the electrical concern. Below are a few examples of unusual electrical concerns caused by aftermarket devices. Example
- SA-038-26b Service bulletin2026-09-10 · Electrical System
- This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 08/18/26 and 06/15/26 DESCRIPTION Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App
- SA-038-26a Service bulletin2026-09-04 · Electrical System
- This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 06/15/26 DESCRIPTION Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote functions inoperative. Engine Start / Stop Door Lock / U
- SA-054-26 Service bulletin2026-08-20 · Electrical System
- This Service Alert supersedes the previously issued Service Alerts listed below: The changes are noted in Red. Infotainment Reboot With Navigation Card Installed This Service Information is no longer valid. Refer to the following updated Technical Service Bulletins: CX-5 / CX-9: 16-002/23 - UPDATED SOFTWARE RELEASE FOR CONCERNS WITH MAZDA CONNECT INFOTAINMENT SYSTEM (7TH GEN TYPE) Mazda3 / CX-30
- SA-039-26a Service bulletin2026-08-19 · Unknown Or Other
- This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red text. SA-039/26 06/15/26 Mazda Connect Symptom Troubleshooting DESCRIPTION Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure.
- SA-053-26 Service bulletin2026-08-19 · Wheels
- This Service Alert supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. SA-006/23 01/23/23 DESCRIPTION Some customers may complain about the infotainment system and/or the MyMazda App showing incorrect clock and/or tire pressures and/or tire pressure missing. This may be caused by: Incorrect calendar entry (month/day/year) after a battery disconnect Infot
- SA-052-26 Service bulletin2026-08-18 · Unknown Or Other
- DESCRIPTION Some customers may complain about SiriusXM Travel Link, Traffic Plus showing expired even though the customer purchased a paid subscription. SiriusXM audio packages do not include SiriusXM Travel Link, Traffic Plus. To get Traffic Plus, the customer must purchase the Infotainment "SiriusXM Traffic Plus with SiriusXM Travel Link (TM)" package.
A service bulletin is the manufacturer telling its dealers how to diagnose or repair a known condition. It is not a recall, not a finding that the vehicle is defective, and the work is not automatically free — though a bulletin is often what a dealer works from when you describe a symptom, so quoting the document number can save a diagnosis. The count is every communication filed; the list shows the most recent, one entry per campaign, because a single campaign is usually filed as several documents on the same day. The summaries are NHTSA's; the full documents come from the manufacturer.
Diagnostic trouble codes on file
Source: NHTSA manufacturer communications and complaintsCodes documented against this model year in the federal record. A code appearing here does not mean this vehicle will set it — it means the code is part of this nameplate-year's documented history.
| Code | What it means | Most often filed under | Where it appears |
|---|---|---|---|
| P0126 P0126 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Engine | 35 bulletins |
| U3000 U3000 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 14 bulletins |
| B119F B119F on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 10 bulletins |
| B1030 B1030 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Seats | 7 bulletins |
| B1032 B1032 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Seats | 7 bulletins |
| P2B61 P2B61 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Engine | 7 bulletins |
| B14F0 B14F0 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Equipment Adaptive/Mobility | 6 bulletins |
| U0300 U0300 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Electrical System · Battery → | 5 bulletins |
| U2050 U2050 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Equipment Adaptive/Mobility | 5 bulletins |
| B13D3 B13D3 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Engine | 4 bulletins |
| C1001 C1001 on Mazda → | Manufacturer-defined — the meaning is set by the automaker, not the standard. | Equipment Adaptive/Mobility | 4 bulletins |
| P0524 P0524 on Mazda → | Engine oil pressure has been measured below the safe limit. | Engine | 4 bulletins |
Generic codes (the second character is 0 or 2) mean the same thing on every vehicle sold in the United States. Manufacturer-specific codes (1 or 3) mean whatever the automaker assigned, and no honest source can define them for you — which is why the ones here carry the evidence instead of a definition. A code is a link when enough separate federal documents name it across the catalogue to be worth a page of its own; the rest are listed here, where the vehicle is the context that makes them mean something.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
At the New York inspection station
Source: New York State DMVIn New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2020 Mazda CX-30 failed the emissions check on 1.3% of first inspections — lower than the 2.2% for every 2020 model-year vehicle inspected; and the safety inspection on 2.3% (every 2020 vehicle: 1.6%).
failed emissions
1,346 initial inspections of 1,320 vehicles.
| Measure | The 2020 CX-30 | Every 2020 vehicle | Behind it |
|---|---|---|---|
| Failed the emissions check | 1.3% | 2.2% | 1,345 |
| Failed the safety inspection | 2.3% | 1.6% | 1,346 |
| Air-bag warning lamp stayed lit | 0.30% | 0.19% | 1,346 |
| Miles driven a year | 9,200 | 9,980 | odometer at inspection |
| Average odometer | 58,145 | 62,630 | odometer at inspection |
New York’s emissions test on these model years is an on-board diagnostics check: it fails a car whose check-engine light is on or whose self-tests have not finished. First inspections only, so a car that failed and came back is counted once; private and special plates, not taxis, livery or commercial plates. A rate appears only where at least 200 inspections stand behind it. “Every 2020 vehicle” is every 2020 model-year car, SUV and pickup inspected in the same window, all makes. This is the state’s record of test results, not a reliability score by itself. Source: New York State Department of Motor Vehicles, Vehicle Inspections (data.ny.gov, Open NY terms).
CX-30 by model year
all years, side by side →Common questions about the 2020 CX-30
Source: EPA, NHTSA and manufacturer press kitsDoes the 2020 Mazda CX-30 have any recalls?
NHTSA has posted 3 recall campaigns for the 2020 Mazda CX-30. The most serious on file is 20V346000, covering Service Brakes, Hydraulic. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.
How safe is the 2020 Mazda CX-30?
NHTSA gave the 2020 Mazda CX-30 5 stars overall in its New Car Assessment Program tests — 5-star frontal crash, 5-star side crash, 4-star rollover. WhichTrim also grades it B (81/100) on its recall record, which is a different question from crash protection.
What is the fuel economy of the 2020 Mazda CX-30?
Across the 4 EPA-rated configurations of the 2020 Mazda CX-30, the best EPA combined figure is 28 mpg. Figures are the EPA's own, per configuration, and every one is listed above.
What are the dimensions of the 2020 Mazda CX-30?
Transport Canada measured it at 172.8 in long, 70.9 in wide (body, without mirrors), 61.8 in tall, on a 104.3 in wheelbase. Curb weight: 3,146–3,342 lb depending on configuration. Those are its measurements of the North American versions; every figure is in the table above.
What do owners complain about on the 2020 Mazda CX-30?
Owners have filed 34 complaints with NHTSA about the 2020 Mazda CX-30, most often about unspecified, service brakes, engine. Of those, 1 involved a crash. Complaints are unverified owner reports, so treat the pattern as a signal and the individual report as an anecdote.
How clean is the 2020 Mazda CX-30?
The EPA smog rating for the 2020 Mazda CX-30 is 7 out of 10. That score covers tailpipe pollutants other than greenhouse gases, and it only compares vehicles within the same model year. It is certified for all fifty states, so it can be registered new anywhere in the U.S. Its configurations were certified to different standards — California LEV-III SULEV30, Federal Tier 3 Bin 30 — which the table above lists per configuration.
Are there service bulletins for the 2020 Mazda CX-30?
The manufacturer has filed 687 service bulletins and related communications with NHTSA for the 2020 Mazda CX-30, most often covering electrical system, equipment, engine. The most recent is dated 2026-09-17. A bulletin is not a recall: it is the repair procedure a manufacturer sends its dealers for a condition it knows about, and the work is not automatically paid for. It is still worth knowing — if the symptom matches, quoting the bulletin number at the service desk can save a diagnosis. The document numbers and summaries are listed above.
How does the 2020 Mazda CX-30 do at state inspection?
In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2020 Mazda CX-30 failed the emissions check on 1.3% of first inspections — lower than the 2.2% for every 2020 model-year vehicle inspected; and the safety inspection on 2.3% (every 2020 vehicle: 1.6%). The figures are New York State DMV’s own inspection records, first inspections only, and the table above sets each one against every vehicle of the same model year.
What we hold, and what an empty row means
Paid vehicle-history reports will not tell you the difference between “nothing happened to this car” and “we never received that record” — both of the big two say as much in their own help pages. Most of what is on this page comes from complete federal registers, so we can tell you which is which, row by row.
| Data | Held | Source | What it covers — or what empty means |
|---|---|---|---|
| Fuel economy & configurations | 4 configurations | EPA certification records | Every configuration the EPA certified for sale, with its own test figures. |
| Emission certificates | 4 configurations | EPA emission certificates | Smog rating, standard and the sales area that decides where the car can be sold new. |
| Recalls | 3 | NHTSA recall campaigns | A complete federal register: every campaign covering this model year, with severity and advisory flags. |
| Owner complaints | 34 | NHTSA complaint database | Also complete, but unverified: these are reports owners filed, not findings. Counts scale with how many were sold. |
| Crash ratings | 2 tested | NHTSA NCAP | Only the configurations NHTSA chose to crash-test, which is never all of them. |
| Service bulletins | 687 | NHTSA manufacturer communications | Everything the manufacturer told its dealers about a defect or malfunction, short of a recall. |
| Investigations | none | NHTSA Office of Defects Investigation | No defect investigation has been opened. |
| Driver-assist crash reports | none | NHTSA Standing General Order 2021-01 | No report has been filed. Only entities named in the order report, and only crashes they hear of — so this is also what an unequipped car, or a manufacturer without telematics, looks like. |
| Specifications filed with NHTSA | 12 fields | NHTSA vPIC, decoded from VIN patterns | What the manufacturer filed under the federal VIN rule — a configuration, not the full trim ladder. |
| Measured dimensions | 7 fields | Transport Canada, Canadian Vehicle Specifications | Length, width, height, wheelbase, track and curb weight, measured on the North American versions. |
| Trims, pricing & equipment | none | Manufacturer press kit | We have not transcribed a press kit for this model year yet. This is our gap, not the manufacturer's — the one row here where an empty cell means we are behind. |
Rebuilt nightly; this page was generated 2026-10-26. Every figure above is traceable to the source named beside it, and the JSON for this page carries the same values with their identifiers.
Sources & method
Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). The most serious recall counts in full and each further one counts 85% of the one before, because a vehicle sold in millions is recalled more often than a rare one without being more dangerous — and because a flat subtraction bottomed the scale out, scoring a vehicle with 22 recalls within a point of one with six. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Read it as what it counts: recall campaigns on the federal record, weighted by severity. The damping reduces the sales bias by roughly 40% but does not remove it: like our complaint counts, this is not normalized by how many were sold, so a best-seller still scores somewhat worse than an obscure model with the same real risk. NHTSA crash ratings, do-not-drive and park-outside advisories, and the crash, fire, injury and death counts in owner complaints are reported separately on every page and never blended into the letter — a vehicle can hold five stars and a poor letter at once, and where that happens we say so rather than leave you to notice. Because the scale subtracts from a clean sheet, a model year too new to have been recalled, complained about or bulletined scores full marks on an empty record; we label those grades provisional rather than present them as earned.
EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed nightly.