2021 Mazda CX-30 Visibility Problems

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 during extreme summer heat exceeding 100 degrees Fahrenheit, creating an immediate health hazard inside the cabin during my daily 40-mile highway work commute. Additionally, the complete loss of climate control functionality compromises the vehicle's defogging and defrosting capabilities, creating a severe visibility hazard during sudden weather changes on the highway. Mazda customer service corporate teams refused to cover or reimburse the repair because I had to utilize an independent repair facility (Firestone) within walking distance of my home to safely remedy the immediate environmental hazard. The manufacturer is actively denying financial accountability for a well-documented manufacturing flaw that leads to premature secondary component failure. No warning lamps, messages, or other symptoms of the problem prior to failure. First appeared 7/23/26.

NHTSA ID

11753153

Incident

Jul 23, 2026

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 obstructing forward driver visibility. The manufacturer has issued Technical Service Bulletin (TSB) MC-10203760-0001 for factory evaporator defect on 2021 models, acknowledging low refrigerant charge due to component leakage. However, the manufacturer's current TSB VIN cutoff is too narrow. My vehicle is a 2021 model built at the same facility experiencing the exact same component failure past the arbitrary cutoff, proving the dangerous defect extends into later production runs. The current parameters must be expanded to protect public safety and a recall needs to be initiated to fix the issue.

NHTSA ID

11744720

Incident

Jun 11, 2026

The contact owns a 2021 Mazda CX-30. The contact stated that while operating the vehicle, the interior rear mirror loosened and eventually fell from the roof of the vehicle. The cause of the failure was not yet determined, and the vehicle was not yet repaired. Additionally, while driving at an undisclosed speed, the message "Critical Brake System Malfunction" was displayed. The vehicle was taken to the local mechanic; however, the cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The failure mileage was 22,000.

NHTSA ID

11641757

Incident

Jun 23, 2024

Mileage

22,000 mi

I have noticed the windshield is distorted and from reports all over the Internet that seems to be an issue with 20-22 mazda cx-30’s and I don’t think Mazda is going to replace it. It causes me to get fatigued, and a little dizzy at times during long distance driving.

NHTSA ID

11549655

Incident

Oct 12, 2023

I picked up my certified pre owned CX-30 just 2 days ago and noticed the windshield appears distorted or wavy which results in eye strain and headaches. This seems to occur in the left side of the windshield. It is difficult to focus for long periods of time. I asked another person to drive the car and they confirmed it nearly instantly. I recently learned this is a known issue with the vehicle.

NHTSA ID

11512582

Incident

Mar 18, 2023

Was driving on interstate, during the afternoon, not close to any other traffic ahead. It was neither raining nor particularly windy. I heard a very loud “explosion” sound, like a gunshot. I pulled over and my sunroof is bowed OUTWARD a little, and missing a big section of glass. There is no rock or debris laying on the interior screen, and the sunroof is NOT concave like from an impact. It is clearly blown upward.

NHTSA ID

11495052

Incident

Nov 27, 2022

Notable distortion in the windshield horizontally through driver and passenger areas. Dealership has been helpful in replacing the windshield three times thus far. The most recent windshield is clearer but still with notable distortion and is considered an aftermarket windshield. Mazda is aware of the issue and was told they are giving pushback on replacements. This issue is noted numerous times on multiple Mazda forums with no solution. From conversations with the dealership, Mazda is claiming this is normal especially close to the pillars due to vehicle design. This issue causes driver fatigue and distance perception problems while driving which is considered a road safety concern. Paperwork and vehicle are available for inspection upon request.

NHTSA ID

11485086

Incident

Apr 25, 2022

Yesterday I heard a very light ting sound. I did not think much of it. When I stopped I checked for any windshield damage, I could not locate any. After having the car parked for several hours, to my utter shock I had about a 1' long crack in my windshield. After looking for some time, I located the microscopic chip that caused the issue. I believe the windshield is defective! It is either too thin, too brittle, or both. Which could be a safety hazard.

NHTSA ID

11475290

Incident

Jul 21, 2022

The windshield in my 2021 CX30 had a distorted view on the passenger side of vehicle. Took it in to dealership who confirmed that there was obvious distortion in the windshield. Windshield was replaced and the new windshield has the same issue. Mazda is now saying that it is "normal" to have some distortion on this particular model and they will not replace the windshield again.

NHTSA ID

11469611

Incident

May 4, 2022

There is a warp in the windshield on the driver's side of the car that causes noticeable distortion. It causes eye pain and headaches. It also causes distortion and visibility issues when driving at night.

NHTSA ID

11447735

Incident

Aug 1, 2021

Manufacturing defect in the windshield glass: distorted/warped windshield glass causing waves/ripples. Result: impaired visibility when operating vehicle and rapid eye fatigue. Google search (forums) indicates that this is a well known issue on several Mazda models. The issue presumably existed at factory. I noticed upon purchase as CPO at 6k miles. Available for inspection if needed.

NHTSA ID

11437910

Incident

Sep 29, 2021