Mazda MAZDA3 stalling problems

Filed Oct 13, 2026 · Engine, Fuel system · 100,000 miles · TX

The contact owns a 2018 Mazda Mazda3. The contact stated that while driving uphill at 45 MPH, the vehicle sputtered, hesitated to accelerate, and the check engine warning light illuminated. When the contact firmly depressed the accelerator pedal, the engine made a knocking noise, and the vehicle stalled. Diagnostic testing at AutoZone retrieved DTC related to the knock sensor. The vehicle underwent a tune-up, and the knock sensors and ignition coils were replaced; however, the failure persisted. While driving, the vehicle hesitated and failed to exceed 40 MPH. The contact pulled over, restarted the vehicle, and drove to the residence with the hazard lights activated. The vehicle was taken to the dealer, where the federal safety agency Campaign Number: 23V487000 (Back Over Prevention) was completed. The contact associated the engine hesitation and stalling failures with the federal safety agency Campaign Numbers: 17V745000 (Engine and Engine Cooling) and 21V875000 (Fuel System, Gasoline); however, the dealer informed the contact that the VIN was excluded from both recalls. The manufacturer was notified of the failure by phone. The failure mileage was approximately 100,000.

Filed Oct 13, 2026 · Electrical · ME

While driving to work, the dashboard displayed “Charging system malfunction, pull over.” The driver pulled over safely. The vehicle has electric power steering, so a loss of charging power while driving could reduce steering assist and cause the vehicle to stall in traffic. This happened three days after a Mazda dealer replaced the front passenger-side lower control arm. That part had failed at 111,777 miles, causing clunking under braking and making the car unsafe to drive (previously reported to the federal safety agency). This is the second safety-related failure on this vehicle in two weeks. The vehicle is again off the road pending dealer diagnosis. Reported to Mazda Customer Experience, case #00503860.

Filed Oct 20, 2025 · Engine, Transmission · CA

What component or system failed or malfunctioned, and is it available for inspection upon request? The high-pressure fuel pump failed. This component failure prevents the car from starting or staying running. The check engine code confirmed the high-pressure fuel pump failure. The failed component is currently at the Mazda dealership and is available for inspection upon request. How was your safety or the safety of others put at risk The car suddenly stalled while driving on the roadway, creating a dangerous situation. If this had happened on the freeway or in fast-moving traffic, it could have led to a serious accident. Losing power and control of the vehicle at higher speeds poses a major safety risk to both the driver and surrounding vehicles. I was fortunate that the failure occurred on a city street rather than on the freeway. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. The Mazda dealership inspected the vehicle and confirmed that the high-pressure fuel pump had failed, which was also verified by the check engine code. This failure caused the stalling and starting issues. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle was inspected by an authorized Mazda dealership, which diagnosed and confirmed the high-pressure fuel pump failure. It has not been inspected by police or insurance representatives. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? Before the final failure, the car was hesitant to start, and after it stalled, the check engine light appeared. There were no prior warning messages or signs before the car suddenly stalled while driving. Additional details: The car is only seven years old with approximately 52,000 miles, and it is concerning that such a critical component would fail this early.

Filed Nov 20, 2024 · NY

My 2021 Mazda 3 was bought used in August 2023 and is about a year old in my possession. it has been at the Mazda dealership for repairs multiple times since August 2023. it dangerously stalls and hesitates when trying to accelerate from a stop position. When the brake pedal is released and I start to accelerate like merging onto highways,the car rumbles or shakes slightly and then shuts off. I Came across a review online that had the exact same problem and it stated a PCM update solved the issue. I have been to the dealer frequently since purchased and they kept my car for over a week and claimed they could not reproduce the customers complaint and there is no diagnostic code generated. There is Frequent parking light malfunction alerts, switch operation not accepted alerts, Brake alerts on desolate roadways I believe this vehicle behavior is dangerous on multiple levels, but the dealer Refused to remedy the complaint or give me copies of the papers that I signed, stating they are only for the dealership. I also received a notice in the mail for a class action settlement for faulty fuel pump used in MAZDA vehicles but not the 2021 Mazda 3 although it displays the same Dangerous behavior. So between the faulty fuel pump or required PCM update the vehicle is questionable to drive safely under certain circumstances. The dealer inferred I should have purchased a used certified Mazda from them instead. Thanks

Filed Nov 3, 2024 · Engine · GA

This began on 10.19.24 and as of 11.03.24 is ongoing and not repaired. On 10/19/24, while I was at a red light, the RPMs on my vehicle went up and down repeatedly. After I arrived at my destination, which was about a half mile away, and put the car in park, the RPMs repeatedly went up and down between 1,000 and 2,000 RPMs and the check engine light came on, and a message displayed saying malfunction - have the vehicle inspected. I spent $100 at my mechanic who could not pinpoint the issue. After I picked up the car, I stopped to get gas and then my battery died. I then decided to take my car to the dealer where I purchased it, Mazda of Roswell. After I put the car in park at the Mazda of Roswell service department, the RPMs started going back and forth between 1,000 and 2,500 RPMs. My car spent 6 days at Mazda of Roswell, where the service dept was unresponsive and my car was never inspected. I then spent $1600 at North Roswell Automotive, only to have the issue appear again after driving less than two miles. I am not sure it is safe to drive a vehicle in which the RPMs are unstable. So far this has only happened when the car is idling or in park. If it happens when the car is in motion I hope I am able to control the vehicle. My car needs service at a Mazda dealer but I need the dealer to be honest with me about what to expect in terms of how long it will take to address the issue. Since this is an engine issue, this issue could be something that causes the car to stall or fail at any time, including while I am in traffic; it could also be electrical, since the battery suddenly died without warning. This would place myself and others on the road in danger. I purchased the battery just over one year ago, so I do not know if there is an issue there.

Filed Jul 30, 2024 · Fuel system · 51,000 miles · FL

The contact’s sister owns a 2018 Mazda Mazda3. The contact stated that while driving at various speeds, the vehicle stalled. The contact also stated that while attempting to depress the accelerator pedal, the vehicle failed to respond as intended. The vehicle was taken to a local dealer where it was diagnosed with a defective fuel pump. The vehicle was repaired, and the contact related the failure to the federal safety agency Campaign Number: 21V875000 (Fuel System, Gasoline); however, the VIN was not included. The manufacturer was made aware of the failure; however, no assistance was provided. The failure mileage was approximately 51,000.

Filed Apr 19, 2024 · CA

The manufacturer has not provided a timely remedy for a known safety issue on the backup camera for my car. (Jul 14,2023; Manufacturer Recall Number6023G; the federal safety agency Recall Number23V-487). I purchased the car in 2014. Around 2017, the backup camera began flickering and sometimes failing to load completely. Â I took the vehicle to the Mazda dealership in Tustin, CA and they said there was nothing wrong with the camera. They said that I would have to pay approximately $500 for a new camera if I wanted one. I could not afford to replace the camera at that time, so the problem has persisted ever since. In July 2023, a notice of a safety recall was issued for the same issue with the camera. On [XXX], I took the vehicle to the same Mazda dealership and asked for the camera to be replaced due to the recall. They inspected the vehicle and agreed the camera was defective; however, they said they didn't have the parts yet to replace the camera and that I would receive something "official" about the recall later. It is now April 2024 and I have heard nothing. This safety issue has been going on for 7+ years and Mazda needs to take responsibility. The fact that they wanted to charge me for the camera in 2017 and now they say no cameras are available leaves me to believe that they are stalling and just don't want to incur the cost to fix the safety issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 19, 2023 · Engine · 105,000 miles · CA

The contact owns a 2018 Mazda Mazda3. The contact stated that while his girlfriend was driving at 65 MPH, several unknown warning lights illuminated, and the vehicle stalled. The contact stated that his girlfriend was able to safely drive the vehicle to her destination. The vehicle was then towed to the dealer. The vehicle was diagnosed with rod knocks. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 105,000.

Filed Oct 17, 2023 · Transmission · CA

The car started to stall, hesitate and even stop completely for no apparent reason. The mechanic first recommended a new ECU/TCU which did not help the problem and in the course of duplicating the problem check engine light has come on for the transmission with problems shifting/sticking in a gear and not returning to first gear. My mechanic has stated that there is a known problem with Mazda3 transmission, and I should reach out to Mazda. They indicate there is no recall, but mechanic provided me TSB reference number 0500814 from a service bulletin. The car is a death trap and I have stalled while driving on the streets and freeway so obviously I can't drive the car. The car is still at the mechanics since parts cannot be found. Please help any way possible. Thank you.

Filed Jul 5, 2023 · Engine · DE

I have a 2018 Mazda 3. On two occasions in the span of one month, my car has acted like it was going to stall out when I was stopping at a red light. It doesn’t stall out, but the car will idle like it’s about to stall. When starting the vehicle it is kind of sluggish at times. Battery has been tested and it is fine. I’ve had the car for five years and it has 60,000 miles on it. No issues until recently.