Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2016 Mazda CX-5 owners, lightly cleaned up (personal details are redacted by NHTSA).
My wife was driving our 2016 Mazda CX-5, and was getting ready to pull into our daughters' driveway. My wife slowed down to a stop before entering the driveway. She gave the vehicle some gas to move forward. She stated that there was a pause, then the vehicle accelerated forward slamming into the garage door and the corner of the garage/house. There was also a Tesla parked inside the garage that was knocked back about a foot and a half. The distance from the edge of driveway and street to the garage door is about 27 feet. This happened at 1:30 PM. The weather conditions were great, sunny and dry. Thankfully, no one was hurt. If my wife was another foot to the right, she would have hit the support post for the upper balcony, and there would have been a good chance of the balcony falling on top of her. …
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.
I was driving on a city street and slowed to turn right onto a driveway at at a private residence. As my car entered the driveway and near the end of the right turn, my car had a sudden unintended uncontrolled acceleration, continued the turn, went over a low hedge of shrubs on the right side of the driveway, continued down a short rocky incline, and landed on a large rock where the car stopped.
My son was driving the car when it suddenly lost power and would not shift correctly. This occurred without warning while in moderately fast traffic that was moving at 40-50 mph. There were no warning lights illuminated prior to the problem occurring. Upon reviewing trouble codes, it is likely that the low pressure fuel pump located in the fuel tank has begun to fail. When the tank gets low on fuel, about 1/4 tank, the low pressure fuel pump is unable to supply enough fuel to the high pressure fuel pump. This results in sudden loss of power, and also hard starting. I believe the fuel pump is the problem because it was manufactured by Denso, who recalled 2,000,000 similar fuel pumps two years ago. Those pumps were recalled because they created the exact problem we experienced. Toyota recalled vehicles using these pumps as far back as 2013. …
My problem is with the keyless start system. The problem is that if I forget to push the start button to shut down the vehicle and open the door and leave the automobile and shut the door with the key in my possession the auto will keep running until it runs out of fuel. Wouldn't it make more sense for the vehicle to shut down after 3 minutes if the key is not present. As you know people have died from carbon monoxide poisoning by parking in their garage and forgetting to shut down the vehicle and the vehicle keeps running and filling their homes with carbon monoxide. This happened to a older couple in Sarasota Florida with a new car that they just purchased and were not familiar with the starting system. Just wanted to know just how many people have to die before something is done about this problem. …
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!
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!
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.
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.
High pressure fuel pump has been replaced twice in less than a year. Car has less than 100,000 miles. Both times the fuel pump went out while driving, causing loss of acceleration and stalling of vehicle. Had to be towed to shop both times.
Related recalls
Fuel system, gasoline › Storage › Tank assembly › Filler pipe and cap
Mazda North American Operations (Mazda) is recalling certain model year 2014-2016 Mazda CX-5 vehicles manufactured June 27, 2013, to February 2, 2016. The affected vehicles have a fuel filler pipe that may rupture in the event of a crash.
Remedy: Mazda will notify owners, and dealers will alter the attachment between the fuel filler pipe and the left rear side of the bracket of the fuel filler pipe, free of charge. The recall began on February 25, 2016.
Fuel System complaints in other CX-5 years
Frequently asked questions
How common are fuel system problems on the 2016 Mazda CX-5?
NHTSA has 20 complaints about the fuel & propulsion system of the 2016 Mazda CX-5, 4% of the model year's 510 complaints. The component named most often is delivery › fuel pump (1 mentions).
Is there a recall for 2016 Mazda CX-5 fuel system problems?
Yes — NHTSA recall 16V-064 (filler pipe and cap, Feb 3, 2016). Recall repairs are free at authorized dealers.
At what mileage do 2016 Mazda CX-5 fuel system problems start?
Half of the complaints with a recorded mileage happened before about 35,000 miles, and 38% before 25,000 miles.
Is it dangerous?
Owners linked 3 crashes, 2 fires and 0 injuries to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.