2021 Mazda Cx-30 problems, complaints & recalls
Most-reported problem areas: Engine (37) · Visibility/Wiper (8) · Vehicle Speed Control (7)
🧭 Reliability snapshot
Compared against other Mazda Cx-30 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Tires:valve 2021-02-22 · campaign 21V101000 · 599 vehicles
Defect: Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
Risk: A sudden air leak from the tire air valve may cause a loss of vehicle control while driving, increasing the risk of a crash.
Fix: 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.
Structure:body:hatchback/Liftgate 2021-02-18 · campaign 21V086000 · 13,857 vehicles
Defect: 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.
Risk: 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.
Fix: 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.
Service bulletins (616)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-17 · SA-042-26a · Service Bulletin/Repair Instructions
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 st
Electrical System 2026-09-11 · SA-041-26a · Service Bulletin/Repair Instructions
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 con
Unknown Or Other 2026-09-10 · SA-038-26b · Service Bulletin/Repair Instructions
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 t
Unknown Or Other 2026-09-04 · SA-038-26a · Service Bulletin/Repair Instructions
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 a
Unknown Or Other 2026-08-20 · SA-054-26 · Service Bulletin/Repair Instructions
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
Unknown Or Other 2026-08-19 · SA-039-26a · Service Bulletin/Repair Instructions
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.
Showing the 6 most recent of 616 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-09-20 · 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…”
2026-07-27 · Visibility:defroster/Defogger/Hvac System:compressor“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 failur…”
2026-07-05 · Engine“excessive oil consumption. regularly have a low oil warning come up about 6000 kms after an oil change. oil is always low when checked. …”
2026-06-17 · Visibility:defroster/Defogger/Hvac System:air Handler/Chamber, Ducts, And Valves“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 co…”
2026-06-13 · Service Brakes · 💥 crash“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 ou…”
2026-05-22 · Air 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 re…”
2026-04-29 · Unknown Or Other“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 …”
2026-03-09 · Unknown 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.…”
2026-03-04 · Lane Departure: Warning“the i-activesense camera disables all the time while driving. it disabled cruise control, lka and lka warning as well as auto high beams. while driving at highway speeds, when the vehicle drifts slightly over the line it does not get corrected nor do i receive any warning. it's almost as if the system knows it's there but doesn't want to turn on. w…”
2025-12-18 · Wheels“on december 13, 2025, my vehicle (2021 mazda cx-30) was serviced at a valvoline instant oil change location. during service, the technician stated he was checking tire pressure and asked whether 36 psi was acceptable. i agreed. when i pulled out of the bay, the tire pressure warning light remained on and showed 29 psi. i stopped immediately and in…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.