2023 Mazda CX-5

Summary of Events: Purchase Date: 05/27/2023 Coolant Warning: In January 2025, I received a coolant temperature warning (code P0126) indicating insufficient coolant temperature. Repairs: I brought the vehicle in for repairs on 02/15/2025 for thermostat and related parts. The repairs were completed by 02/17/2025. New Warning: On 03/18/2025, I received a high coolant temperature warning. Upon inspection, coolant was nearly empty, and I found coolant contamination in the engine bay. Notification to Dealership: I emailed Hennessy Mazda on 03/19/2025, but after no response, I filed a claim with Mazda headquarters on 03/20/2025. Only after that, they called me and instructed me to bring the vehicle in. They claimed that after replacing the faulty parts and cleaning the engine bay, the car was ready for pickup. (While they assert that all actions were completed on 03/22, Based on the fact that the car door was opened approximately five times in April, it can be inferred that the necessary actions were likely completed in early April.) Concerns: Coolant Leak: The coolant leak persisted for nearly a month, likely causing damage to internal components due to engine overheating. Electronic Contamination: The leaked coolant likely contaminated sensitive electronic systems, wiring, and connectors, potentially leading to long-term failures due to the conductive and corrosive properties of modern coolants like Mazda FL22. Long-Term Risks: Hidden corrosion inside connectors and wiring. Potential for electrical failure, sensor malfunctions, and further degradation over time. Hennessy Mazda is currently addressing only the visible issues and claiming the car is now functioning properly, while attempting to shift the long-term and hidden risks onto me. I am requesting a vehicle replacement or compensation due to the safety and long-term reliability risks posed by the unresolved coolant leak and contamination.

Extremely heavy steering causing excessive driver fatigue making it difficult to maintain control of the vehicle at highway speeds (up to 70mph). Dealers unable to reproduce, likely due to it being cold outside when I had time to go. The hotter and dryer the roads gets, the better grip the tires have and the worse the heavy steering gets. It is significantly heavier than my old car at higher speeds and that car has no power steering. My arms are very sore after 30min - 1 hour. Mazda refuses to admit this is a significant safety issue. It gets worse when the LKAS activates at least once (too heavy I am veering around in my lane)

Engine light came on. Immediately brought to dealer. Always serviced at dealership. One previous occurance of illuminated light reading major engine malfunction. Pulled car to side of road, called dealership who advised turn off and back on. Didn't tell me about ALL the problems that Mazda was aware of. Now I'm told my new car with 22k miles has a blown engine. No notification from Mazda about a known problem. Asked when buying the car if there were any major problems with this car. Mazda apparently lies.

The contact owns a 2023 Mazda CX-5. The contact stated that while the temperature was 45 degrees or lower, the vehicle failed to start properly, and the engine failed to warm up properly. The coolant light was illuminated, and the engine temperature gauge failed to rise above COLD. The vehicle occasionally failed to start or while started and driving at various speeds, the vehicle stalled while and engine temperature failed to reach the normal operating temperature. The check engine light was illuminated. The contact would shift to SPORT Mode to prevent the cylinder activation from occurring and causing the vehicle to stall. The contact stated that the failure persisted, and the vehicle was hesitating while driving in temperatures of 50 degrees or less. Additionally, the key fob intermittently failed to unlock the vehicle. The contact stated that the vehicle failed to start and had to be towed. The contact stated that during the recent failure, the battery was disconnected, and the vehicle was towed to the dealer to be diagnosed. The contact stated that the key fob battery had been replaced 6 times; however, the failure persisted. The vehicle had not been diagnosed or repaired for the engine failure. The contact called another dealer, J. Allen Mazda (15150 Airport Rd, Gulfport, MS 39503); however, only an appointment to inspect the vehicle was made but the vehicle was not yet inspected. The manufacturer was made aware of the failure and a case was filed. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 4,000.

The Low Oil Warning Light comes on between oil changes. I think this is the 3-4th time. I will have to add 1 quart of oil to the car after 3000-4000 miles. I only have about 33,000 miles on this vehichle and do the oil changes myself. I checked for leaks at the oil filter and oil drain plug. No indication of oil leaking or I would see it on the floor of my garage. What component or system failed or malfunctioned, and is it available for inspection upon request? Engine using excessive amounts of oil. It could be available for inspection How was your safety or the safety of others put at risk? Has the problem been reproduced or confirmed by a dealer or independent service center? I plan to take it into the dealer for next oil change and report it. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? The Low Oil warning comes on

The vehicle continues to have safety features malfunctions with its sensors. The forward facing camera sensor and the Blind Spot Monitoring Sensor continues to malfunctions when driving in clear visibility with light to heavy traffic at random times during a day. These features assist the driver to maintain a safe distance from other vehicles while driving. My vehicle has almost crashed several times due to the failures of the features such as the stop and go traffic and forward facing crash detection not working properly.

Headlight of the motor keeps rumbling in about 25000 miles of usage. Expense of fixing such a motor is estimated between 2500-2800$. Further, it is unknown how safe it would be for someone to keep driving such a car with a rumbling motor if they dont fix it. This sound and vibration of the motor can be felt even in a standing car when lights are on.