Mazda CX-90 loss of power problems

Filed Sep 20, 2026 · Electrical, Engine · PA

My boyfriend and I rented the car from Hertz Car Rental in [XXX] on Labor Day weekend. Within moments of driving the car off the lot, the safety camera system stopped working and the lights came on saying they weren’t working. The touch screen also started glitching and intermittently working but we didn’t think too much about it. We started driving across the state to [XXX] and made it about 4 hours away from [XXX] when the car started making a noise like a marble in a tin can, lost power, started shaking, and could not make it up hills at a safe speed. The check engine light came on. We pulled over and popped the hood to find a lot of rat feces scattered all over the engine bay, some of it looked fresh and some was turning white telling us it was there for a while. We called the Hertz rental roadside assistance who could not help us as they rented out all of their cars for the weekend and our only options were to tow us back to [XXX] without a replacement car or try to continue driving it the 1 hour to our destination. We continued to drive the car as we did not have anywhere else to stay and were in the middle of nowhere. We drove the car slowly to our destination but it did keep making the noise and shaking although the check engine light went out. When I got out of the car, I noticed a raw gas oder which worried me. I called my dad who works on cars and he told me not to drive it any farther as it could be a serious safety risk as the rats likely have been chewing wires and hoses and there could be a fire risk. We were also breathing the rat feces in our whole trip unknowingly. We called for the car to be towed and paid to rent another from another company. Since then, we have not gotten any money back and they continue to charge us daily for the car saying we must return it, meaning they have no record of where there car is even though we watched it be towed away and talked to the driver who said he was taking it to the Grand Junction Airport. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT

Filed Sep 2, 2026 · Brakes, Electrical · GA

Our 2024 Mazda CX-90 has experienced the same significant malfunction on two separate occasions while being driven on busy public roads. The vehicle displayed an “Acceleration Limited Due to Battery Condition” warning and experienced significantly reduced/limited acceleration while driving. This put the occupants and other motorists at risk because the vehicle could not accelerate normally in traffic. A similar occurrence while merging, crossing an intersection, or traveling in heavy traffic could potentially result in a collision. The vehicle has been taken to an authorized Mazda dealership twice for the same issue and has been out of service for approximately six cumulative weeks. The vehicle is currently at the authorized Mazda dealership and is available for inspection. The dealership has been made aware of and is attempting to diagnose/repair the recurring condition. The exact component or system responsible for the failure is currently UNKNOWN. The issue recurred after the vehicle was previously returned to us following the first repair attempt. Prior to/during the failure, the vehicle displayed the warning message “Acceleration Limited Due to Battery Condition.” Any additional warning lamps, diagnostic codes, or underlying component failures are currently UNKNOWN and are being investigated by the Mazda dealership. Additionally, while our 2024 CX-90 was at the dealership, we were provided a separate 2026 Mazda CX-90 as a loaner vehicle. While that vehicle was being driven on a main public road, it suddenly lost all power. The steering wheel and pedals became locked or unresponsive, leaving the driver unable to normally control the vehicle while it was in traffic. Fortunately, a collision did not occur. The 2026 vehicle was returned to the Mazda dealership and is available for inspection. The exact cause of that failure is currently UNKNOWN. Experiencing safety-related failures while driving two separate Mazda CX-90 vehicles has raised serious concerns rega

Filed Aug 5, 2026 · Electrical, Engine · NY

I am reporting a recurring safety-related issue with my 2024 Mazda CX-90 Turbo S Premium involving the mild hybrid system. The first failure occurred at approximately 28,000 miles. While driving, the vehicle displayed multiple warning messages, including "Mild Hybrid Battery Malfunction," "i-Stop Malfunction," and "Engine Malfunction." Shortly afterward, the vehicle entered a reduced-power (limp mode) condition. The loss of normal power made it difficult to safely accelerate and keep pace with surrounding traffic, creating a significant safety concern. The dealership diagnosed the vehicle and replaced the mild hybrid battery. My vehicle remained out of service for approximately one month while repairs were completed. At approximately 56,000–58,000 miles, the same problem occurred again. The vehicle once again displayed the "Mild Hybrid Battery Malfunction," "i-Stop Malfunction," and "Engine Malfunction" warning messages and again entered reduced-power mode while driving. The repeated loss of power created another serious safety concern because the vehicle could not accelerate normally when merging into traffic or driving on higher-speed roads. After diagnosing the second failure, the dealership informed me that, in addition to replacing the mild hybrid battery, corrosion had been found in the wiring harness and internal wiring associated with the hybrid battery system. Those components also required replacement. Due to parts availability, my vehicle remained at the dealership for an extended period before repairs could be completed. This vehicle has experienced the same hybrid system failure twice within approximately 58,000 miles, despite the first battery having already been replaced. I am concerned that this is a recurring defect affecting the mild hybrid electrical system. A failure that causes multiple system malfunction warnings and forces the vehicle into reduced-power mode while driving increases the risk of a crash, especially when merging onto highways

Filed Jul 4, 2026 · Transmission · NC

My car is literally stalling out on me. It started by sputtering when I put my foot on the gas a week or so ago. Then today It literally started just losing power while driving. It’s not throwing any codes but that’s super dangerous and this car is only a year old. I am extremely concerned for my safety.

Filed May 14, 2026 · Driver assistance, Electrical · TN

Hybrid battery recall was replaced and failed a month later for a second time burning other systems and causing a compete failure in the car. It failed in a deserted portion of [XXX] while traveling from [XXX] to [XXX] for important business. This left me stranded in the middle of the [XXX] desert late at night in a dangerous area. It failed on the highway loosing complete power with multiple failures reported on dashboard. I was left stranded in the middle of nowhere with no nearby services or immediate assistance and was forced to remain in the vehicle overnight in unsafe conditions. The vehicle required towing, and I was later informed the issue was again the hybrid battery the same component that had already been replaced under recall less than one month prior. This repeated failure creates a serious safety concern because the vehicle can unexpectedly lose power and leave occupants stranded without warning, even in remote or unsafe locations. In addition it lost power on the highway and that posses a significant safety concern. The vehicle is unreliable given its age and repeated failures, and I am requesting investigation into a potential safety defect involving the hybrid battery system and sudden loss of propulsion/power and damages to other parts. I had 8 different warnings on my dashboard before the car completely died and I couldn’t even open or close windows or lock and unlock doors. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 10, 2026 · Fuel system · PA

While my wife was driving my 2024 Mazda CX90 gas turbo at the posted speed limit, this vehicle suddenly without warning the car lost most of its power. She was able to move the vehicle to safety by pushing the gas pedal to the floor and achieved a maximum speed of 10 mph. The car was towed to the dealer Koch 33 of Easton, PA. The dealer diagnosed the problem as a throttle body issue. This is the second incident whereby this vehicle lost power in a similar manner but for a different reason (fuel pump) and had to be towed to the same dealer. I filed a complaint with your agency about 18 months ago. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 25, 2026 · Steering · GA

According to your recall that states: Recall date 2024-01-17 Recall no. 24V022000 Mazda North America Operations (Mazda) is recalling certain 2024 CX-90 vehicles. An assembly issue with the worm gear in the steering system may result in a sudden loss of power steering assist. Recall consequence Loss of power steering assist while driving increases the risk of a crash. My car is not included in this recall according to my VIN number, however my car is doing the same thing described above in the recall. I am requesting that ALL Mazda CX 90 vehicles be in this recall. I took it to the dealership and although there hasn’t been a serious injury yet, there absolutely could be if it is not fixed.

Filed Feb 26, 2026 · Engine, Fuel system · PA

The authorized dealer, Cochran Mazda, previously bypassed the vehicle’s hybrid system and returned the vehicle to us stating it was safe to operate and that we could disregard warning messages until a replacement hybrid battery became available. Prior to this, we had reported repeated drivability concerns, including jerking during operation. We were advised that this behavior was normal for hybrid vehicles. While awaiting a follow-up service appointment, the vehicle displayed a “Critical Engine Malfunction” warning and experienced a significant loss of power while traveling across the Liberty Bridge in Pittsburgh, PA. The vehicle would not accelerate beyond approximately 15 mph and then stalled out on the bridge. We activated hazard lights and were able to proceed slowly to a nearby parking lot, where the vehicle required towing. This incident created a hazardous traffic condition and raised significant safety concerns.

Filed Jan 31, 2026 · Steering · OH

I can only best describe it as there were choppy and dead spots in my steering. Coming out of a turn, it feels like a brief loss of power steering which in a turn at highway speeds caused me to reach as I was losing control of the vehicle. Thankfully, no accident caused. I took to Mazda dealership and they confirmed my findings which included me doing a ride along with one of their chief mechanics. They kept the vehicle and later confirmed steering rack was bad and would have to be replaced after they consulted with Mazda corporate. Vehicle was just outside of warranty mileage and Mazda refused to fix as warranty repair. The vehicle had previously had the recall completed on the steering unit that included replacing a spring inside the worm gear. In my talks with Mazda dealership, they confirmed that steering racks were on back order and that the part had a superseding part number. It seemed very clear to me that Mazda new they had a problem and was not being forthright. Additionally, my conversations with their so called Customer Experience Center showed them to be evasive, dodging and unwilling to discuss the issue nor fix at their cost.

Filed Jan 10, 2026 · Engine · TX

The vehicle repeatedly displays warnings including “Acceleration Limited Due to Low Fuel and/or Battery Condition,” Hybrid System Malfunction, and Engine System warnings. These events result in reduced acceleration and loss of power while driving. The condition occurs despite normal fuel levels and routine driving conditions. The vehicle has been taken to the dealership multiple times. Each time, I am told no fault codes are present or the issue cannot be replicated. The warnings continue to recur and remain unresolved. This creates an unsafe driving condition due to unpredictable power limitation. This issue appears to be a known problem affecting Mazda CX-90 vehicles and may be related to hybrid system software or battery management. The vehicle was being driven on a city road (Lake Forrest and University dr in McKinney, TX). Turned right off of a shopping center exit toward Lake Forest Dr. The vehicle lost power all of a sudden and would not accelerate with traffic heading in my direction. The vehicle signaled to stop and place the gear into park. I was able to slowly change lanes and pull into the Chipotle parking lot at 5151 W. University Dr at 10:56 am. I called Mazda Roadside and they came to tow it to El Dorado Mazda dealership. This incident: Date: 01/10/26 Time: 10:56 am Temp: 45° / clear and sunny Previous Incident: 12/04/25 6 pm Parked - Idling at Prosper High School. I-stop and hybrid system malfunction warnings appeared Called El Dorado Mazda- advised it was not a safety issue and sometimes it just needed a software update or the battery was bad. They scheduled a service appt until 12/17/26 due to lack of loaner vehicles available. 12/08/25 / 12:05 pm Clear weather Inspected at El Dorado Mazda Could not be Duplicated. Battery OK Nothing came up on diagnostic machine. Cleared recall. Advised to return if it happened again. Reassured me it was safe to drive and I was not in danger. 12/16/25 Car started from park at home Approx 40-50° 9-10 am 1/10/26-