2023 MAZDA CX-5 Complaints

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)

On the freeway going 60 MPH, the safety system malfunctioned and applied maximum braking - as if I was going to collide with something in front of me. It was frightening. There was a 1/4 mile of open road in front. It happened 2 more times in the next 2 miles on the interstate. Background: I had been driving through a snow storm for a couple hours prior to the incident and I received a forward camera dirty warning. I was in the left lane (of 3 lanes) with a concrete barrier about 15 ft to my left. All 3 times, there was a semi truck & trailer on the right. I was in no danger of collision. I took the CX50 to the Mazda Dealer and the issue was escalated to the regional service techs who said the auto was "working as intended" I vehemently disagree. I am lucky there was no one driving close behind me, otherwise there would have been a terrible accident

I motor fan is constantly on when driving. It is 32F to 40F here in Hampton Roads. There is no reason the fan should be on. I have video of the fan running at 29 degrees F. I reported it to my local mazda 3 times. A person I know in another area reported the same problem and her local mazda dealer fixed it.

Several times in the past 2-3 weeks. I have placed my car from park to reverse or drive and when I release my foot from the brake. The car doesn’t move. A loud pop occurs and then the car begins to move.

Turning steering wheel to the left seems to stick somewhat between 9 and 11 o'clock position. It seems more likely happening in cold weather and more obvious at lower speeds.

Small amount of weight such as keys or phone is triggering the Occupant sensor in the front passenger seat. This issue just started and I am finding a lot of complaints regarding this.

Both front driver and passenger seats have ~1-inch rips on the side. This appears to be a common issue among CX-50 owners, with multiple reports online. The premature tearing raises concerns about material durability and potential safety risks over time.

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.