2024 Mazda CX-90- Plug-in Hybrid fuel/propulsion system problems

“While driving through a busy intersection with my family inside the vehicle, my 2024 Mazda CX-90 suddenly experienced a complete loss of propulsion. Pressing the accelerator pedal produced no response, leaving the vehicle unable to accelerate or maintain speed. The vehicle displayed warning messages stating “Engine malfunction” and “Stop safely and shift to Park.” I was forced to rely on the vehicle’s remaining momentum to coast out of the busy intersection and into a nearby gas station. This unexpected loss of propulsion created an extremely dangerous situation and placed my family at serious risk of a collision with surrounding traffic. Following the incident, the vehicle was taken to Hiley Mazda, where technicians diagnosed a failed 48-volt mild-hybrid battery and ordered a replacement under warranty. A leaking radiator was also discovered during the same service visit. This vehicle has an extensive history of electrical malfunctions, abnormal i-Stop operation, software-related issues, and previous safety concerns. However, this incident was particularly alarming because the vehicle completely lost propulsion while operating in active traffic. I am extremely…”

“The lower fuel pump is going out. It is a known issue with the car. I was driving out of town and the car started to stall. My steering has become ruggish while on the trip as well, and steering was complicated during heavy winds. The car has been inspected by dealer and both warning lights have been cleared. But the issues still remain.”

“My 2024 Mazda CX-90 PHEV Premium Plus has experienced repeated hybrid system failures. The vehicle currently has an active "Hybrid System Malfunction" warning light. This is the latest in a series of 17 recalls and recurring defects since purchase in July 2023. Most recently, the vehicle was out of service from February 14, 2026 to approximately March 18, 2026 due to a severe transmission fluid leak, which the dealer (Nealson Mazda Cool Springs, TN) acknowledged was common in this model. The current hybrid system malfunction warning poses a direct safety concern as it affects the vehicle's powertrain and reliability. I am a daily driver of this vehicle and have two young children who ride in it regularly.”

“My 2024 Mazda CX-90 MHEV has experienced multiple life-threatening sudden engine stalls and a complete loss of motive power while driving in active traffic lanes. The first incident occurred on December 31, 2024, when the vehicle abruptly shut down with an "Engine Malfunction" dashboard alert. The vehicle was towed to an authorized Mazda dealership (Palatine, IL), where it was held for a week, but technicians stated they could not replicate the issue and returned the car to me as safe. On March 30, 2026, the exact same failure recurred. While driving, the engine suddenly shut off completely at a traffic intersection. After turning the vehicle off for 5 minutes, it was restarted and driven to another authorized Mazda dealership (Crystal Lake, IL) for specialized diagnostic scanning. The second dealership successfully retrieved stored diagnostic trouble code (DTC) P061B, which is directly linked to safety recall 24V-815 (Loss of Drive Power from Software Errors). Crucially, the detailed diagnostic scan revealed that this code was historically stored with a timestamp dating back to December 2024. This proves that the safety defect was active and detectable during…”

“The fuel tank pressurization systems on my 2024 Mazda CX-90 PHEV have failed, and the vehicle is currently available for inspection at Dolan Mazda in Reno. This defect puts the safety of myself and others at risk because the vehicle gurgles and sprays raw gasoline out of the filler neck during refueling, creating a severe fire and environmental hazard at public gas stations. The issue first appeared on March 23, 2026, during a road trip from Reno to Las Vegas, with dashboard warnings stating Fuel Tank Malfunction, Avoid Refueling, Have the vehicle inspected and Engine Malfunction. The vehicle was inspected and supposedly repaired by Jerry Seiner Mazda on March 24, 2026, but the problem recurred during the return trip from Las Vegas to Reno on March 29, 2026, when it again spit fuel at the pump. The failures consistently occurred midway through long road trips at refueling stops in Tonopah, Beatty, and Hawthorne, Nevada. During these incidents, the vehicle was completely unable to accept fuel, causing significant distress as I was nearly stranded with young children in remote desert areas with limited resources. I barely managed to reach my destination on the…”

“After multiple visits to the dealer—and despite a manufacturer recall addressing the issue of remaining fuel levels and estimated range—the error message has reappeared.During my most recent visit to the dealer, I was informed that they could not detect any errors.”