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.
2019 Mazda MAZDA3: check engine light
6 of the 74 complaints about the 2019 Mazda MAZDA3 describe check engine light.
- owner complaints
- 6
- of this car's complaints
- 8%
- recalls
- 0
Check engine light by model year
What owners say
Shown engine light on dashboard and Car was struggling to run while pressing the gas, took to the mazda dealership and they told low pressure and high pressure fuel pump needs to be replaced.
The engine coolant system/electronic coolant control valve is known for failing on the N/A Skyactiv-G engine. When it fails, it fails stuck open. There is a TSB out for this problem (01-011/21). This results in the engine coolant never making it to operating temperature, and poor heater performance during cold weather. When I took it to a dealer, they stated that the check engine light must come on from DTC P0126:00 before they can address the problem under warranty. Even after driving the car and having 30+ minute drives where the temperature gauge never makes it past the first tick (blue), I haven't had the check engine light come on. It's unclear what circumstances are required for DTC P0126:00 to occur, but I've never had a car essentially not get warm during an entire 30+ mile highway drive, even when it's 0 fahrenheit outside. It appears like this is a degenerative problem as I did not have this problem last cold season. This year, since the first day it has been colder than about 45 degrees, the engine has struggled to reach operating temperature, and of course is even worse now that it is colder. Without the heated seat, it would be difficult to be comfortable in this car due to this problem.
The contact owns a 2019 Mazda Mazda3. The contact stated while driving 40 MPH, the vehicle lost motive power with the vehicle network malfunction, vehicle inspection”, the check engine warning light and all the safety features were disabled, and the windshield wipers turned on independently. The contact was able to pull over on the side of the road. The contact mentioned that the gear shifter failed to shift out of park(P) and the vehicle was turned off. The vehicle was restarted, and the contact was able to operate the vehicle normally. The vehicle was taken to the dealer for a diagnostic test and stated that no failure was found however, the failure reoccurred. The vehicle was taken back to the dealer and the dealer stated that they were aware of the failure, but the vehicle needed to be diagnosed by a Tech. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 36,329.
Check engine light appeared then I had a dead battery. I purchased a new one and the check engine light went away for a while until now. Then I found a letter online that I never received of a recall for california vehicles that were manufactured during specific dates. Mine is listed as one but it does not have an active recall.
Car will not start, instrument panel flashes on and off. I’ve had to jump the car to start it and then the check engine light and engine malfunction warning messages appear on the panel. I’ve had the battery tested and told it wasn’t the battery.
Service bulletins that may apply
- Subject: TSB 01-001/26 Warranty and Parts Kit Update INCLUDES: Warranty Extension Program
- SSPD8
- SSPD8
- Engine
- Customer service program CSP12 - denso low-pressure fuel pump customer service program warranty extension
- On certain subject vehicles, the check engine light is illuminated with diagnostic trouble code (DTC)...
- Engine
- This bulletin supersedes the previously issued bulletin(s) listed below
Related recalls
No recalls on record for this model year.
Questions about the 2019 Mazda MAZDA3 check engine light
Is check engine light a common problem on the 2019 Mazda MAZDA3?
6 of 74 owner complaints about the 2019 Mazda MAZDA3 (8%) mention check engine light. The model year with the most reports is 2012.
Is there a recall or service bulletin for this on the 2019 Mazda MAZDA3?
There are 0 recalls and 117 service bulletins for the same area of the car. Check them below with your VIN.
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