2016 Mazda CX-5: check engine light

Filed May 28, 2026 · Engine · 131,860 miles · MI

The contact owns a 2016 Mazda CX-5. The contact stated that the engine light illuminated. The vehicle was taken to an independent mechanic diagnosed with a sensor failure and needing to replace a catalytic converter. The oxygen sensors were repalced.r was replaced by an independent mechanic. The vehicle stalled while reversing. The manufacturer was not notified of the issue. The approximate failure mileage was 131,860.

Filed Apr 1, 2026 · Engine · CA

Vehicle was taken to an authorized Mazda dealership for 60,000-mile service; coolant system drained and refilled. Immediately after service, check engine light illuminated (P011A – engine coolant temperature sensor correlation issue). Dealership retained vehicle, drove ~300 miles, performed a second coolant flush; issue persisted. Dealer determined heater core clogged, attributed to coolant contamination/corrosion introduced during service. Another CX-5 at the same dealership experienced the same issue. Safety Concerns: Heater and coolant system failure may affect cabin comfort and engine temperature monitoring. Occurred immediately after authorized service, suggesting procedural or system-related defect. Noted in Mazda Technical Service Bulletin 07-007/19 as a known issue. Attempts at Resolution: Mazda offered partial goodwill assistance (~$775–$875) and assigned partial responsibility to the customer. Multiple attempts to escalate with Mazda Customer Experience (Case manager Betty) have not resulted in a satisfactory resolution. Dublin Mazda dealership service department, Mr. Frank Gozales (866‑502‑9912) mentioned original coolant by Mazda has caused this issue on 2016, and 2017 Mazda CX5 and is Mazda problem. I am requesting the federal safety agency review of this issue for potential defect or safety investigation.

Filed Aug 14, 2025 · Electrical, Engine · 130,000 miles · OH

The contact owns a 2016 Mazda CX-5. The contact stated that while driving 60 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. No warning light was illuminated. In addition, there was an abnormal rattling sound coming from the engine. The contact pulled over to the side of the road before the vehicle stalled. The vehicle failed to restart. The vehicle was towed to an independent mechanic who determined that the engine had failed due to a lack of maintenance. The contact stated that the vehicle was equipped with an automatic reminder regarding the oil change. The contact stated that the oil change reminder failed to illuminate to indicate that the oil level was extremely low. The check engine warning light also failed to illuminate. The vehicle remained at the dealer unrepaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 130,000.

Filed May 13, 2025 · Electrical, Engine · WI

The engine light constantly appears along with the "Schedule Maintenance Soon" light. Taken to dealership many times within my 3 month warranty and no definite reason was given.The vehicle rides very bumpy though sway bar was inspected and supposedly repaired by dealership during my 3 month warranty.

Filed May 30, 2024 · Engine · NJ

Car was having trouble with pickup and was making a subtle recurrent noise. Sped up after turning a corner and engine just sputtered out and car came to a complete stop within seconds. The engine light never came on and the engine did not overheat. Car would not turnover to start after that. Car was towed to an independent garage where they stated engine failure. Was then towed to a garage that can handle engine issues where it was declared a total loss and catastrophic engine failure.

Filed Sep 6, 2023 · Fuel system · 66,000 miles · CA

The contact owns a 2016 Mazda CX-5. The contact stated while driving at an undisclosed speed, the vehicle stalled and lost motive power. The contact stated she was able to drive the vehicle to a safe area before the vehicle lost motive power. The check engine warning light was illuminated. The vehicle was towed to an independent mechanic, where it was diagnosed with an inoperable fuel pump. The contact was informed that the fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 66,000.

Filed May 23, 2023 · Fuel system · NY

Denso Fuel Pump should be recalled!!! It is not sending fuel to the my engine properly it's running rough at even 0-30 miles, becomes difficult to start (cold or mild engine), sputters and idel, and suddenly stalled out in the middle of the road several times, put us in danger from other motorist. My check engine warning indicator is also on, it's not shifting correctly and is lacking rpm power. Mechanic put a code scanner on it and found P0192 (low fuel rail pressure) and P0171 (System too lean)... I have the pictures. Several auto makers have issued recalls, including Mazda. But Mazda only went back as far as 2018. Toyota recalled cars as far back as 2013. Mazda needs to do the right thing or be forced to do so!

Filed May 10, 2023 · Fuel system · VA

Fuel system failure at only 60k miles on car. Engine light came on dash & my car just randomly started failing as if it wasn't getting gas, trying to cut off while driving down the road!! Huge hazard!! This could have caused an accident but i luckily going in a 25mph zone. Local shop diagnosed the fuel pumps failed (this car has 2 of them) and they also were able to reproduce the same issue when going to start the car to move in and out of the bay. I have called mazda and done the research- they did not put a recall on this year but it appears other years gave been recalled with fuel system related issues. This should be looked into as I've found NUMEROUS complaints on this year and model!

Filed Feb 2, 2023 · Fuel system · OR

The low pressure fuel pump on my Cx-5 failed on my drive back home, while in a remote area. I was able to limp the vehicle home with a check engine light that illuminated (at the time of the incident) and erratic vehicle performance (uneven power deliver). This occurred on level ground at highway speed - no incident precipitated the part failure. Once home the following day, the vehicle would not restart. Upon diagnostic review, the vehicle had thrown two codes, one being a low fuel rail pressure (P0192 and P0171). This is a know issue for these defective (Denso) fuel pumps. The manufacturer should extend the recall to include vehicles manufactured prior to 2018.

Filed Nov 5, 2022 · Engine, Fuel system · CA

The check engine light came on when I was in my way home. This morning when I started my car, the engine reved on its own and then it went to 0. This is super dangerous. The car could have stopped in the middle of the freeway. I had my car towed to a local mechanic. The error code that came up was p0192. Looks like there is a recall for the fuel pump issue for many mazda, yet mine isn’t part of it.

Filed Oct 11, 2022 · Engine, Transmission · NJ

Car: 2018 Mazda CX-5 Touring with approximately 39,000 miles. Issue: Burning smell coming from engine compartment- Oil leaking from engine. Problem: Cracked cylinder head as diagnosed by dealer and to be replaced under Mazda Power Train Warranty. Safety was a concern not knowing the issue. Concerned of engine failure, fire, and overall safety. Warnings: No warnings or check engine light was also concerning. Time frame: 10/1/22 evening- noticed slight burning smell which lasted only a few minutes. No evidence of oil leaking. - 10/2/22: Slight burning smell occurred briefly on and off through out late afternoon. No evidence of oil leaking. Smell dissipated. - 10/3/22: Stronger presence of burning smell. Started to notice oil leaking from under car. - 10/4/22: Car inspected by local mechanic and advised to bring to dealer for further assessment. Mechanic observed increased oil leakage and stated oil was coming from within engine. Car towed to dealer, evaluated with a cracked cylinder head. Repair to be covered under Mazda Power Train Warranty. Additional concern: Short and Long Term residual effects on other engine components. Other reports: none. Awareness: I’ve come to understand that there seems to be similar issues with certain model years/production runs that might not be reported due to being covered under warranty. The consumer provided the correct VIN for the vehicle.

Filed Sep 1, 2022 · Engine · CA

While driving to the airport suddenly all dashboard lights came on and engine "died" during the drive about 50mph. My wife who was driving, was lucky not to get into a crash and steered the car to the side to a full stop . The tow truck driver tried to restart the engine w/o success. The garage determined it is a catastrophic engine failure and need to be replaced. About 2 weeks prior we had an engine warning light. The car was taken to our regular serviced garage and was inspected w/o any issues and light was reset. All routing maintenance has been performed by same garage. There are similar reports on the web about total engine failure of Mazda CX5 during driving!!!