2021 MAZDA CX-30 Complaints

View complaints related to 2021 MAZDA CX-30. The complaints found here are submitted by actual consumers with first hand experience. There are more than 100 complaints submitted for the 2021 MAZDA CX-30. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

  • 2021 MAZDA CX-30
    - DeKalb, IL

    Vehicle makes a noise on the driver side headlight when light is on. Once headlight is off, noise is gone.

    Source: NHTSA WEB SITE
  • 2021 MAZDA CX-30
    - DeKalb, IL

    Seatback fold mechanism loose. Vehicle only has 23,000 miles and seat is starting to come loose.

    Source: NHTSA WEB SITE
  • 2021 MAZDA CX-30
    - Tryon, NC

    Car lunged forward when lightly stepping on the gas while making a turn onto a busy street. Then it later lagged in responding when I stepped on the gas. About 5 minutes later, the car dashboard lit up and said there was a transmission error. Mechanic's diagnosis found code P0756 for a shift solenoid B stuck off. The car is unsafe to drive.

    Source: NHTSA WEB SITE
  • 2021 MAZDA CX-30
    - Bellflower, CA

    Low engine oil light is on again, I had one at 4600 miles and keep happening every 5-6000 miles. I had 7!! oil changes on a car that is 2.5 years old and it is at 29000 miles. I am sitting at the dealership and they are telling me nothing is wrong and despite of the valve stem cap replacement available they are not willing to replace it. In addition I had my battery die and needed to be replaced at 23 months after purchasing a brand new car - due to a faulty system. This is getting extremely upsetting. And dealearships do not care.

    Source: NHTSA WEB SITE
  • 2021 MAZDA CX-30
    - Miami, FL

    The car has some .kind of Electric or electronic malfunction that drains the battery and kills it without giving you a warning. I have taking it to a Mazda Dealer to be fix 4 times and they don't seem to be able to fix it.The battery was replaced.twice one by me and the second time by the dealer in an attempt to solve the problem at some point. Unfortunately just yesterday it happened again it had to towed to the Mazda dealer again for the fifth time. I really hope a solution can be found.

    Source: NHTSA WEB SITE
  • 2021 MAZDA CX-30
    - Fairfax, VA

    On multiple occasions, low oil warning lamp illuminates and I have confirmed low oil level. Dealer is unable to confirm and refuses to address Mazda TSB because oil level is no longer low since I topped it up. The failure lies in the valve seal assembly. My safety and that of my passengers is affected because in the event of a low oil incident, my ability to safely drive the speed limit and/or accelerate quickly is compromised. Should a catastrophic failure occur, engine would lose all power. Date of most recent incident marked below.

    Source: NHTSA WEB SITE
  • 2021 MAZDA CX-30
    - Tampa, FL

    I'm getting a critical engine error with the car saying I have low oil pressure. The dealership has looked and said that they can't fix it. They said I can drive it with the warning up

    Source: NHTSA WEB SITE
  • 2021 MAZDA CX-30
    - Newnan, GA

    The contact owns a 2021 Mazda CX-30. The contact stated that while the contact's wife was driving at an undisclosed speed, several unknown warning lights illuminated. The contact stated that the vehicle decelerated to 20 MPH. The contact's wife drove the vehicle to a safe location and parked the vehicle. The vehicle was towed to an independent mechanic, but the mechanic was unable to duplicate the failure. The contact stated that the independent mechanic reset the codes and the vehicle operated as intended; however, the failure recurred. The vehicle was taken to the dealer and the contact was informed that the battery needed to be replaced. The battery was replaced but the failure reoccurred. The vehicle was taken back to the dealer where it was diagnosed with a failed MAP sensor. The contact was informed that the MAP sensor needed to be replaced. The vehicle remained with the dealer for nineteen days and the MAP sensor was replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the dealer where it was diagnosed with needing a software update. The vehicle was at the dealer for another 34 days and the software update was completed and the PCM was replaced. The vehicle was repaired but the failure reoccurred. The contact stated that the failure had been persistent. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 36,500.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 MAZDA CX-30
    - Cupertino, CA

    Engine is burning an excessive amount of oil. After numerous times to the dealership Mazda has finally okay the "fix" to be done to the car. What this "fix" is I do not know.

    Source: NHTSA WEB SITE
  • 2021 MAZDA CX-30
    - Arlington, VA

    The accident occurred on the afternoon of Tuesday, November 14, which I reported to Enterprise, City of Falls Church, on the morning of November 15. Additionally, I provided to Enterprise email links to the many reports about breaking problems about the CX30 2021, 2022, and 2023 MAZA models and the reasons for their recall for repair. Here are the details about what happened. As I was trying to put the car in reverse from a standing position, the car, instead, lurched forward at great speed headed toward the Sun Trust bank. I had to use super-human strength to the brake pedal on the car to force it into a standing position. The damage to the car is due to scrapping some bark off one of the trees that separates the Sun Trust Bank property from the CapitalOne bank property where my car was parked.

    Source: NHTSA WEB SITE