2019 Mazda MAZDA3

I had an oil change back in April of 2024. I have been driving the last couple of days and after about 15 minutes my low oil light comes. this car has 58.800 miles on it. I stopped at a oil express to see if I was low on oil but they said I was at full. I also checked to see if they saw anything leaking but they also said they didn't see anything. if the gasket is bad 58,000 that is telling me it's a faulty product. I'm afraid that my engine could lock up on the highway and cause a bad accident.

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.

Cylinder head is leaking oil due to known defect by Mazda. The rocker arm rubs the cylinder and causes the wall the thin and oil to leak through. Oil sprays on exhaust and other moving parts causing a safety concern due to possible oil combustion. This is in relation to TSB SA-031/21. Only alert is the low engine oil light due to the leak. At this point, oil has already covered a majority of the engine compartment and exhaust manifold.

Cracked cylinder head causing oil leak. Confirmed by Mazda Dealership. Vehicle has always had routine maintenance and remote start used to warm engine prior to driving. No warning lights appeared to alert driver prior to noticing issue- took it in because driver could smell burning oil which is a fire risk to safety of occupants while using vehicle. This type of issue is a manufacturer flaw and should be covered with recall since there are a lot of people online experiencing the exact same issue.

The vehicle's battery has gone dead on several occasions since replacing the OEM battery. The OEM battery which was approximately 3 years old, also had gone dead, prompting its replacement. The battery has gone dead within 1-2 days of not using the car. Charging the battery by running it is only a temporary fix as the car needs to be constantly driven in order to charge the battery, which is not usual and customary for the maintenance of a vehicle. This cannot be functioning to manufacturer's specifications, as I find it extremely difficult to believe that manufacturer's specifications stipulate to drive the car with more frequency. This is a safety issue. Should this happen during the winter months, an individual may be left stranded. The NHTSA must demand Mazda to issue a safety recall to fix this safety issue.

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.

The contact owns a 2019 Mazda Mazda3. The contact stated while driving approximately 30 MPH, the vehicle lost motive power and stalled. The contact stated that after pulling over to the shoulder the vehicle would not immediately restart. The contact stated that approximately five minutes later, the vehicle restarted without pressing the start button. The contact stated that the message "Network Malfunction" was displayed. The contact stated that several electrical malfunctions had previously occurred with the vehicle including the front windshield wipers independently activating, with the headlights and instrument cluster lights flickering. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not yet notified of the failure. The failure mileage was 59,000.