2023 MAZDA CX-5 Complaints

When my car starts up, engine rpm is around 1500 or above 1000. If I would switch to reverse, the car sudden jerks back stronger and quicker than I expected even though my foot isn’t on the accelerator pedal and have pressed the brake lightly.

On 09/01/2026 at approximately 55 mph, I was driving with adaptive cruise control engaged. The vehicle ahead decelerated abruptly. My vehicle began braking hard with no input from me for a fraction of a second. A red BRAKE warning appeared in the instrument cluster with an audible alarm. I then applied the brake pedal hard. On first contact the pedal barely moved from its rest position and was extremely firm. About a second into my application, while still traveling at over 25 mph, pedal resistance dropped sharply and pedal travel increased substantially. I had to push the pedal several inches farther to get back to comparable deceleration. The pedal did not pulse or vibrate. I came to a matching speed roughly one car length from the vehicle ahead, and only because I kept braking hard. I did not see an MRCC Cancelled message, though the BRAKE warning occupies the same part of the display, so I cannot say whether the initial deceleration came from Mazda Radar Cruise Control or Smart Brake Support. No brake, ABS, or DSC warning lamp illuminated before, during, or after the event, and none has since. There were no symptoms beforehand, and the brakes have worked normally since. Failed component: unknown. I cannot determine whether the change in pedal feel came from the brake booster, the DSC hydraulic control unit, the master cylinder, or the driver assistance system handing brake control back to me. The vehicle has not been inspected by anyone and no service center has reproduced the issue. The vehicle is available for inspection if needed. If a driver assistance system is commanding brake pressure and withdraws it during the driver intervention, total deceleration can drop at the moment when the driver still wants to stop aggressively to avoid a crash. Suddenly, the driver has to find the extra pedal travel while still closing on the obstacle. I slowed to a safe speed in time. With less room, or less attentiveness, I may not have been able to.

On multiple occasions the vehicle has not acceleratedfrom a stop while pushing the accelerator pedal. Have noticed this is usually on warmer days, with AC on half to full, within 3 minutes, and within 1 mile from leaving work for the day after car has sat parked. I am worried this will get worse and cause a potentially dangerous situation when turning left against traffic and the car doesn't accelerate.

We purchased a certified pre-owned Mazda CX-5 from Wellesley Mazda in [XXX] on XXX. As soon as we got home and tried to exit the vehicle, we noticed that the driver's seatbelt was not releasing. Since then, we have noticed that the seat belt has not latched or unlatched properly. Our concern is that a manufacturer-certified vehicle was delivered to a consumer with an intermittently failing primary locking restraint mechanism. There should have been a 160-point inspection done before this car was delivered in order for it to be considered pre-owned. This car is driven by our son who has been put at risk by a faulty restraint device. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While driving 72mph on the interstate at 6am on 7/21/26 the sunroof exploded. No foreign objects made impact with the vehicle and there was no sudden temperature shifts. The glass had no previous defects and it shattered into tiny pieces, failing into the car. The sun shade was open at the time. The vehicle is being serviced at a glass repair shop who noted this is a common issue with Mazda sunroofs.

The vehicle experienced a sudden and complete engine stall while idling immediately after fueling the gas tank to capacity on a day with high ambient temperatures (over 100°F). Leading up to the stall, the vehicle was subjected to temporary auxiliary loads (Max AC running and active steering input). Immediately following the stall, the vehicle exhibited a hard-start condition and would not catch fire. After sitting turned off for several minutes, the vehicle restarted normally. The incident left no Diagnostic Trouble Codes (DTCs) or Check Engine Lights. Independent of this event, the vehicle intermittently exhibits a raw gasoline vapor smell inside the cabin at idle, alongside slight hesitations during low-speed steering maneuvers. This presents a safety hazard due to unexpected loss of motive power immediately after refueling in high-traffic gas station environments.

My rear differential is going out at only 40,000 miles. Ive heard from many other people that this is a widespread issue, and i feel requires a response from the company.

Check Engine Light Code P0524 - Low Oil Pressure. Everything check out fine. Checked all the suggested TSB (Technical Service Bulletin) possibilities from a respected and qualified service center. Cleared the code and it keeps coming back on.

The passenger seat occupancy sensor goes off intermittently, causing an extremely distracting seatbelt alarm in the vehicle during operation. This has occurred to me while driving on a highway; I deeply lost focus on controlling the vehicle as the alarm started suddenly, I shoved the one water bottle off the seat to no avail, and I had to reach way over to plug the seatbelt in to silence it. In other instances where this occurs, only a full restart of the vehicle will reset the sensor. Existing TSB 08-001/23 was deemed to not cover my vehicle by the manufacturer, despite my VIN being in range and symptoms being identical.

The temperature control dial on the climate control system behaves erratically and inconsistently. When turning the dial to increase temperature, the displayed temperature sometimes decreases. When turning it to decrease, it sometimes increases. The dial also jumps multiple units rather than incrementing one degree at a time. The behavior is unpredictable and occurs regardless of whether the engine is warm or cold. This issue has been confirmed by multiple other 2023 CX-50 owners in owner forums, suggesting a manufacturing defect in the encoder mechanism for the temperature control knob. The dealer confirmed the bumper-to-bumper warranty has expired but has not offered a resolution.