Mazda CX-5 battery drain problems

Filed Oct 12, 2026 · Acceleration, Engine · CO

My 2017 Mazda CX-5 has experienced a recurring condition more than six times involving sudden jerking, rapid deceleration, and loss of normal accelerator response during extended highway driving, often while cruise control is engaged. On multiple occasions the engine has also shut down. On 09/11/2026, while traveling south on I-35 at approximately 80 mph with cruise control engaged, the vehicle suddenly began jerking violently and rapidly losing speed. Normal accelerator response was lost and a vehicle behind me nearly struck my vehicle. I was able to reach the shoulder just before the engine shut down. The vehicle would not restart and required towing. There was little or no meaningful warning before the loss of power. The vehicle was inspected by a Mazda dealer. I specifically reported the recurring highway jerking, deceleration, loss of throttle response, and shutdown concern. An aftermarket OBD-II device was removed after the dealer identified parasitic battery draw. The dealer subsequently stated in writing that the battery and alternator were healthy and that the vehicle was “operating as intended.” On 10/09/2026, with that device no longer installed, the same symptoms occurred again during highway travel and the vehicle again became disabled and required towing. The Mazda dealer has now verified the drivability concern and reported a Fuel Rail Pressure Sensor “A” Circuit Low fault and low fuel pressure. The dealer is recommending replacement of the high-pressure fuel pump as an initial repair, followed by further testing of the in-tank fuel pump. The vehicle is currently available for inspection at the Mazda dealer. the federal safety agency’s VIN lookup currently shows 0 unrepaired recalls. I am reporting this because sudden loss of acceleration and power at highway speed creates a serious collision and roadside safety risk.

Filed Dec 26, 2025 · TX

Shifter switch has gone out and no longer recognizes the car is in park, causes battery drainage because car cannot fully turn off. Car not recognizing gears can cause car accidents and possible loss of life. This issue can be found online as a known defect in mazda cx-5 that has not been recalled. Vehicle has been inspected and issue has been verified.There were no warning lights, sounds or symptoms of potential failure before failure.

Filed Dec 26, 2025 · TX

Shifter switch has gone out and no longer recognizes the car is in park, causes battery drainage because car cannot fully turn off. Car not recognizing gears can cause car accidents and possible loss of life. This issue can be found online as a known defect in mazda cx-5 that has not been recalled. Vehicle has been inspected and issue has been verified.There were no warning lights, sounds or symptoms of potential failure before failure. Mazda has had recalls and service bulletins related to shifter/ignition switches, particularly for models like the CX-5 and MX-5 (Miata) in years like 2013-2019, concerning worn shifter switch units (Part #KDY0-46-040) that can prevent the ignition from fully turning off in Park, potentially draining the battery or causing accidental activation. While some were major recalls (like the 1.4 million vehicle ignition switch issue in 2015), many were Technical Service Bulletins (TSBs) for the shifter switch issue where owners sometimes got repairs free even outside warranty due to the commonality.

Filed Dec 26, 2025 · TX

Shifter switch has gone out and no longer recognizes the car is in park, causes battery drainage because car cannot fully turn off. Car not recognizing gears can cause car accidents and possible loss of life. This issue can be found online as a known defect in mazda cx-5 that has not been recalled. Vehicle has been inspected and issue has been verified.There were no warning lights, sounds or symptoms of potential failure before failure. Mazda has had recalls and service bulletins related to shifter/ignition switches, particularly for models like the CX-5 and MX-5 (Miata) in years like 2013-2019, concerning worn shifter switch units (Part #KDY0-46-040) that can prevent the ignition from fully turning off in Park, potentially draining the battery or causing accidental activation. While some were major recalls (like the 1.4 million vehicle ignition switch issue in 2015), many were Technical Service Bulletins (TSBs) for the shifter switch issue where owners sometimes got repairs free even outside warranty due to the commonality.

Filed Dec 26, 2025 · TX

Shifter switch has gone out and no longer recognizes the car is in park, causes battery drainage because car cannot fully turn off. Car not recognizing gears can cause car accidents and possible loss of life. This issue can be found online as a known defect in mazda cx-5 that has not been recalled. Vehicle has been inspected and issue has been verified.There were no warning lights, sounds or symptoms of potential failure before failure. Mazda has had recalls and service bulletins related to shifter/ignition switches, particularly for models like the CX-5 and MX-5 (Miata) in years like 2013-2019, concerning worn shifter switch units (Part #KDY0-46-040) that can prevent the ignition from fully turning off in Park, potentially draining the battery or causing accidental activation. While some were major recalls (like the 1.4 million vehicle ignition switch issue in 2015), many were Technical Service Bulletins (TSBs) for the shifter switch issue where owners sometimes got repairs free even outside warranty due to the commonality.

Filed Dec 26, 2025 · TX

Shifter switch has gone out and no longer recognizes the car is in park, causes battery drainage because car cannot fully turn off. Car not recognizing gears can cause car accidents and possible loss of life. This issue can be found online as a known defect in mazda cx-5 that has not been recalled. Vehicle has been inspected and issue has been verified.There were no warning lights, sounds or symptoms of potential failure before failure. Mazda has had recalls and service bulletins related to shifter/ignition switches, particularly for models like the CX-5 and MX-5 (Miata) in years like 2013-2019, concerning worn shifter switch units (Part #KDY0-46-040) that can prevent the ignition from fully turning off in Park, potentially draining the battery or causing accidental activation. While some were major recalls (like the 1.4 million vehicle ignition switch issue in 2015), many were Technical Service Bulletins (TSBs) for the shifter switch issue where owners sometimes got repairs free even outside warranty due to the commonality.

Filed Dec 23, 2025 · Electrical · VA

The battery died, the car wouldn't start one night. The battery which is the original that came with the car is only about 2 years old. I googled the code from the code reader, it said some mazda cx-5 have a starting problem but then I checked the recall website and there was none.

Filed Mar 25, 2025 · Electrical · CA

This is a complete electrical system failure. My screen continues scroll All Systems fails. At least it is not draining the battery again. I have had to replace the battery 2 times in the last 6 months. Maybe CarMax sold me a "lemon". . I received a recall notice, however when I spoke with the service department at the Bob Mazda dealership in Carlsbad and they told me that the recall on my vehicle is closed. I can come in for repairs, but at my own expense. I have only owned this vehicle for 6 months in which 2 months I was in the hospital recovering from a major surgery. When I get in my car and start it, if it starts the "blue" light is on every time, which is apparently Thermostat. After about 20 minutes or so the light turns off, sometimes 30 minutes. The next part is the scrolling malfunctions. It lists about everything on the car. I am [XXX] and live in Baja. I live in a very safe, gated with a security guard neighborhood, however I am scared of going any due to my car issues and being stranded. I also really need to cross the border to see my doctor but I am afraid. When you have to replace 2 batteries in 6 months and I have only driven under 5,000 since I purchased the car. Mazda needs to make me whole. My car also only has 24,000 and when I bought it had20,000 miles. There is something seriously wrong, actually multiple things are wrong with my 2019 Mazda. A person should never be afraid to get in the vehicle due to safety issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Dec 28, 2024 · TX

We were locked out of the car on a road trip due to a dead battery. We needed to open the car door to pop the hood in this emergency situation. With the Battery down, we had to use the physical keys provided by Mazda to unlock the door. Both Mazda's original keys did not open the driver-side door. We were stranded and had to call emergency key services to open the door. The purpose of physical keys is to open the car in case of emergency but in Mazda CX5 case they were useless. We have also reported the issue to Mazda and are awaiting a response.

Filed Nov 17, 2024 · Brakes, Electrical · TN

The steering and braking systems on my vehicle malfunctioned after jumping my vehicle when the battery drained too far to start, or even power my cars baseline electrical systems. After jumping my car, I started backing out of my parking spot and when I turned the wheel it very violently jerked in a manner that could have hurt me if I'd been holding onto the wheel tighter. Around this same time I believe I recall the brakes automatically applying and halting the vehicle. I was too far out of my parking spot when this began occurring and had to try to maneuver into a different one, during this attempt both of the conditions described above reoccured several times. I eventually noticed that it only seemed to trigger when the wheel was at more extreme steering angles, by keeping the steering angle lower I was eventually able to maneuver into another spot without triggering the issues. After parking and letting the car run for a bit to recharge the battery I no longer experienced these issues. There were several warning lights related to roll stability control, lane departure monitoring before pulling out. The following warnings were present, but I'm unable to recall whether they displayed before I first hit the issues: Smart Braking Malfunction, Power Steering Malfunction, Transmission Malfunction, Check Engine Light. The vehicle has not yet been inspected by anyone, however I was able to find evidence of other people complaining about what sounds to be the same issue going back several years online. [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)