2021 Mazda CX-30 Premium Plus Package
3MVDMBEY4MM303400
Vehicle history report for the 2021 Mazda CX-30 Premium Plus Package (VIN 3MVDMBEY4MM303400). Machine gray metallic, sport utility vehicle (suv)/multi-purpose vehicle (mpv), 2.5L 4-cyl 227 hp, gasoline. Registered in Fl. 2 NHTSA recall campaigns for this model year. Unlock full title, salvage, lien
Full vehicle history report
What a full report checks for VIN 3MVDMBEY4MM303400
A full report searches national title databases (NMVTIS) and licensed history providers for this VIN and shows whatever records are on file — not every vehicle has every record type. The decode, safety recalls and owner complaints above are always free.
At a glance
Vehicle identity & specifications
🧾 Window sticker / build sheet → All 2021 Mazda CX-30 data →
Safety & driver-assistance equipment
Equipment the manufacturer reported to NHTSA for this VIN.
"Optional" means the feature was offered on this model but the VIN alone can't confirm it was fitted. Source: NHTSA vPIC.
MPG & running costs
U.S. EPA fuel-economy estimates for the 2021 Mazda CX-30 with this engine.
Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 5 versions with this engine; combined is shown as a range and the other figures are averages. Actual mileage varies with trim and driving conditions.
Estimated 5-year cost to own
A rough guide to what running a 2021 Mazda CX-30 costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Safety recall campaigns 2
TIRES:VALVE
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
Remedy: Mazda will notify owners, and dealers will replace all four tire air valves with new parts, free of charge. The recall began April 6, 2021. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 4721B.
NHTSA Campaign #21V101000 · manufacturer #4721B · 22/02/2021STRUCTURE:BODY:HATCHBACK/LIFTGATE
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.
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
NHTSA Campaign #21V086000 · manufacturer #4621B · 18/02/2021These are NHTSA recall campaigns for this model year, last checked 7 Oct 2026. They don't show whether this particular car has had the repair done — check this VIN on NHTSA.gov or ask a franchised dealer. Recall repairs are free.
We'll email you the moment a new safety recall is issued — no spam, unsubscribe any time.
Common problems & what to inspect
Based on all 101 owner complaints filed with NHTSA for the 2021 Mazda CX-30, here are the most-reported problem areas — and what to check before you buy.
💥 10 involved a crash 🚑 13 reported injuries
🔍 Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.
🔍 Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
🔍 Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
🔍 Have a trusted mechanic inspect this system as part of a pre-purchase inspection.
🔍 Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.
🔍 Test cruise control and throttle response, and watch for any hesitation or unintended acceleration.
Pre-purchase checklist
- Match the VIN on the dash, door jamb and title — they must be identical.
- Cold-start the engine; listen for knocks and check for blue or white exhaust smoke.
- Test-drive through all gears at low and highway speed — no slipping, shudder or pulling.
- Confirm every warning light clears at startup (none should stay on).
- Check fluids — oil, coolant, transmission — for level, color and leaks.
- Look underneath for rust, fresh undercoating or signs of collision repair.
- Always get an independent pre-purchase inspection from a trusted mechanic.
Owner complaints 101
Complaints filed with NHTSA by owners of the 2021 Mazda CX-30.
ELECTRICAL SYSTEM
For the past 2 years there has been a severe parasitic battery drain issue that drains that battery partially or in some cases completely ruins new batteries. Car has spent a cumulative total of 3 months with a dealer trying to find the source. 5 batteries in 2 years and often times need to jump start the car. Car has been at dealer dozens of times and they …
NHTSA ODI #11765721VISIBILITY
The climate control system suffered a sudden, complete failure due to an engineering defect documented in Mazda Technical Service Bulletin (TSB) ID: MC-10203760-0001. The factory evaporator core leaked refrigerant rapidly starving the A/C compressor of essential lubricating oil. This caused the compressor to overheat and complete seize. This failure occurred…
NHTSA ODI #11753153ENGINE
Excessive oil consumption. Regularly have a low oil warning come up about 6000 kms after an oil change. Oil is always low when checked.
NHTSA ODI #11748372VISIBILITY/WIPER,VISIBILITY
The vehicle experienced a premature internal A/C failure, resulting in a total loss of climate control refrigerant. Because the A/C system failed, the vehicle's windshield defroster completely stopped removing humidity and moisture from the cabin air. This caused the front windshield to instantly and severely fog over while operating the vehicle completely o…
NHTSA ODI #11744720SERVICE BRAKES,FORWARD COLLISION AVOIDANCE
On June 3rd, 2026, about 1:15 PM, I braked in the rain because there was a stopped car in front of me. The brakes did not work; the Automatic Emergency brakes did not work; the Forward Collision Warning did not work and I hit the car in front of me causing a 3 car accident. As I hit the car I saw the Forward Collision Warning come on and then go out. Unfortu…
Crash · NHTSA ODI #11743896AIR BAGS
Following a recent inspection at Perry Mazda in Santa Barbara, my vehicle was diagnosed with a failed clock spring mechanism causing airbag malfunction warnings. Clock spring failure under 70K miles on a 2021 vehicle is premature and suggests a defect rather than normal wear. I contacted Mazda North America and it has been over a week without a response. I …
NHTSA ODI #11739586POWER TRAIN,UNKNOWN OR OTHER,ENGINE
While driving, on approach to a stop signal, at an intersection the car stopped moving. The display said engine malfunction, have inspected. The electronics and engine continued to operate, but the car would not move when gas pedal was depressed. I shut off and restarted my vehicle numerous times, with no effect on the problem, the car still would not move. …
NHTSA ODI #11734603UNKNOWN OR OTHER
The left and/or right side sun visor does not stay in the fully retracted position and may lower slightly due to its own weight. The problem is attributed to a broken connection point where the sun visor attaches to the vehicle. Impaired visibility, particularly in bright sunlight.
NHTSA ODI #11722934+ 93 more complaints on record.
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Frequently asked questions
Can I find out who owns this vehicle from the VIN?
No — and no legitimate service can. Linking a VIN or plate to a named owner is restricted by the U.S. Driver's Privacy Protection Act, the EU GDPR and equivalent laws. CarLogs shows the vehicle only — specs, recalls, problems and value — never the person.
Is the VIN 3MVDMBEY4MM303400 valid?
3MVDMBEY4MM303400 is a structurally valid 17-character VIN with a correct ISO 3779 check digit, assigned to a manufacturer in Mexico. It decodes to the 2021 Mazda CX-30.
Are there safety recalls on the 2021 Mazda CX-30?
NHTSA lists 2 recall campaigns for the 2021 Mazda CX-30 model year. That covers the model year, not this individual car: to see whether a specific vehicle still needs a recall repair, check its VIN on NHTSA.gov or ask a franchised dealer. Recall repairs are free.
What fuel economy does the 2021 Mazda CX-30 get?
The 2021 Mazda CX-30 has U.S. EPA estimates of 25–28 mpg combined, depending on engine and trim (5 versions).
Recall data checked 7 Oct 2026 · Sources: NHTSA (recalls & complaints), U.S. EPA (fuel economy), NHTSA vPIC (specifications). Vehicle data only — CarLogs never shows owner information.