2025 MAZDA CX-70 Complaints

My cx 70 has extreme brake squealing. This began early on after I purchased this vehicle new from the dealership. I have brought this car to the Mazda dealership that I bought it from three times for this issue.

The contact owns a 2025 Mazda CX-70. The contact stated that while driving on several occasions at various speeds with the Lane Keep Assist feature deactivated, the steering wheel jerked to the left. The vehicle was towed to a dealer, and the failure was being investigated. The vehicle was not yet repaired. The manufacturer was notified of the failure, and a complaint was filed. The failure mileage was approximately 19,000.

Lane assist system acts on it's own and attempts to override my input. It can be very jarring especially at high speeds. I notice the issue mostly when I'm on the highway/freeway and attempting to lane change or take an exit ramp. The system trys to correct my steering and I have to briefly fight against it to maintain control.

I purchased a Certified Pre-Owned Mazda CX-70 that exhibits intermittent and unpredictable steering behavior, creating a significant safety concern. The steering will intermittently stiffen and then pull the vehicle left or right without driver input, at times toward oncoming traffic or the breakdown lane, requiring immediate correction. On straight roads, the vehicle does not consistently track and will drift unpredictably. When driving over minor road variations (such as small bumps or frost heaves), the steering wheel may jerk suddenly in the opposite direction. The vehicle also intermittently behaves as though lane-keeping assistance is active—auto-correcting relative to lane lines—despite all lane assist features being turned off. In multiple instances, the vehicle has tracked erratically along lane lines or navigated slight curves without driver input. The issue occurs unpredictably but is more pronounced on rural or uneven roads and during initial driving, though it can persist on highways as well. The issue caused several near miss accidents-twice it sent my vehicle careening into oncoming traffic; another time it tried to drive me back toward a pedestrian I was driving around intentionally. Driver has to be at constant heightened attention to avoid accident. Multiple repair attempts were made, including replacement of the steering column. The condition temporarily improved but returned and worsened. During the final repair attempt, dealership foreman, master technicians, and manufacturer technical support were involved, and the condition was ultimately deemed a “characteristic” with no repair available. The vehicle remains unrepaired and unsafe to operate. The dealer is refusing to supply the customer with any details of the repair order and diagnostic work that was done. The manufacturer has agreed to repurchase the vehicle under lemon law, confirming the defect could not be resolved.

Vehicle has transmission related issues. Delayed response/hesitation when accelerating from a stop or after decelerating. Delayed torque sometimes few seconds off. Others reported dealer has had software updates however issues remain which is a safety concern when on the road. Suspension frond end mild early on 500 miles or so however has gotten louder at 12k miles. Vehicle seems to be to heavy for the type of suspension used or defective suspensions parts. Many complaints filed on the front end noise however Mazda has not announced recalls. Stock tires Toyo All Weather are a safety hazard. Slippery in the rain and snow. These are not safe for a vehicle this size. Doors do not have insulation, road debris comes inside and all the cold air or wind makes it in through the side and bottom doors.

The contact owns a 2025 Mazda CX-70. The contact stated that while attempting to stop at a stop sign, the vehicle shut off unintendedly. The engine malfunction warning light was illuminated. The vehicle was towed to the dealer, where it was diagnosed and determined that the battery needed to be replaced. The contact had asked about the failure two times. The vehicle was repaired twice for the same failure. The manufacturer was not notified of the failure. The approximate failure mileage was 38,000.

I have put on over 20,000 miles since I purchased new in September 2024. The entire time of ownership, I have dealt with false blind spot warnings. With a clean car/clean sensors, it doesn't matter the time of day/night... when driving at highway speeds, the right rear blind spot warning comes on intermittently even when driving in the right lane of interstate with only the shoulder of the interstate next to me and no other obstructions. When this happens while in the passing lane and believing there is nobody next to me and I put on the blinker and try to switch lanes.... it alarms me saying there is something in my blindspot. These are false readings, that make this "safety feature" a safety concern. Sometimes, the car even tries to pull me back in my current lane even though there is nothing in sight in the lane I'm trying to switch to. The I have had the car to the dealership approximately 4 times for this ongoing issue and they claim they are unable to replicate the problem. I have read numerous other complaints reporting the same issue, and Mazda has not developed a fix to date.

On the morning of January 28, 2026 I arrived to work and came to a complete stop in my works parking garage. I used my key card to raise the gate. Once the gate was fully raised I pressed the accelerator to drive up the ramp. Shortly after accelerating, my engine revved really loud and high rate, then my car automatically increased speed. I immediately pressed the brake pedal but it didn’t stop. It continued accelerating at a speed not controlled by me with my brakes not engaging even though I was pressing the brake as hard as could. I estimate I travel about 100’ with no control of the gas or brake. It lasted about 15-20 seconds. If a car were in front of me at that time, I would have crashed into them because I could not stop the car. I immediately called Davis Moore Mazda. I had the vehicle towed there because I didn’t feel safe driving it. Information from my cars computer program was sent to Mazda. Mazda didn’t see any issues and their diagnosis was a foot was likely on the accelerator causing the acceleration. The general manager called me to discuss. He said the only thing that registered was acceleration. I asked does the computer show my attempt to brake (stop) the car. His response was the computer wouldn’t read that because that was a normal driving process that wouldn’t be recorded. I asked why the acceleration would trigger an alert in the computer, since acceleration is also a normal driving process. He then said the computer picked it up because it accelerated quickly. There were no warnings present prior to this issue.

At highway speeds (>60 mph), the blind spot detection on the passenger side will alert that a car is present in the vehicles blind spot when no car is present. This will happen intermittently and will continue even if I begin the lane change process, it will continue to alert that the car is there. Additionally, and less frequently, the forward collision detection system will identify a car is in front of the vehicle causing a sudden slow down in the adaptive cruise control or an alert.

The contact owns a 2025 Mazda CX-70. The contact stated that while driving at an undisclosed speed, the blind spot monitor beeped and lit up on the mirror. The contact stated that there was no other vehicle nearby. The vehicle was taken to the dealer; however, the failure was not duplicated. In addition, the contact stated that the failure was intermittent. The failure reoccurred. The vehicle was taken back to the dealer, where it was diagnosed with failed blind spot monitor sensors. The contact was informed that the blind spot monitor sensors needed to be replaced. The vehicle was repaired; however, failure reoccurred. The contact stated that while driving at an undisclosed speed, the blind spot monitor beeped and lit up on the mirror. The contact stated that there was no other vehicle nearby. The blind spot monitor independently activated the service brakes. The contact stated that the blind spot monitor steered the vehicle in the opposite direction. The vehicle was taken to the dealer, where it was diagnosed with a blind spot monitor issue. The contact was informed that the manufacturer was currently working on a software update to fix the failure. In addition, the contact was informed that the failure was not a safety concern. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 2,500.