2019 Mazda CX-9 Reliability Report

Owners report issues with the 2019 Mazda CX-9's powertrain, specifically involving coolant leaks linked to cracked cylinder heads. Complaints frequently mention symptoms such as engine overheating, visible smoke from the tailpipe, and loss of power. These issues are noted around 30,000 miles, with some owners experiencing problems shortly after the warranty period. Safety implications include the risk of sudden power loss while driving, which could be hazardous, especially on highways. Mazda has issued a technical service bulletin regarding this problem, and some owners have faced significant repair costs, even with acknowledgment of the defect by the manufacturer.

Owners of the 2019 Mazda CX-9 report issues primarily related to the front suspension, specifically involving control arms and struts. Common symptoms include a creaking or clunking noise from the front suspension, particularly noticeable when driving over bumps or in wet conditions, and a wobbling sensation at higher speeds. These issues are noted at varied mileages, with strut problems reported around 40,000 miles. Safety implications include a reported loss of steering control due to a failed aftermarket lower control arm, leading to a front wheel collapse. Buyers should be aware of potential suspension noise and steering issues, which may affect vehicle handling.

Owners of the 2019 Mazda CX-9 report issues with the backup camera and display screen, particularly involving image clarity and functionality. Complaints frequently mention the backup camera image freezing or displaying distorted visuals, with one incident resulting in a crash due to the camera image being frozen. These issues are reported at mileages around 28,000 to 40,000 miles. Safety implications are significant, as a malfunctioning backup camera can lead to accidents when reversing. Multiple owners describe internal spider cracks on the infotainment display, which further affect the camera's performance, with some referencing specific service alerts and programs related to the issue.

Owners of the 2019 Mazda CX-9 report two primary issues related to the vehicle's structure. Several complaints highlight problems with the Soul Red Metallic paint, specifically noting excessive chipping occurring under 30,000 miles. Additionally, there is a report of the passenger’s side rear wheel well trim molding detaching while driving at highway speeds, specifically at 21,820 miles. No safety implications such as crashes or loss of control are mentioned in the complaints. These issues may be relevant for potential buyers considering the vehicle's aesthetic and structural integrity over time.

Owners of the 2019 Mazda CX-9 report issues with the steering system, specifically a clicking noise when turning the wheel, which is attributed to a loose bolt in the steering column. This problem is noted in a technical service bulletin (TSB) and seems to occur both under and beyond warranty periods. Additionally, a separate complaint describes a failure involving the front axle and tie rod while reversing, leading to the driver's side tire bending inward. This incident occurred at approximately 10,600 miles and required towing for repair. There are safety implications with the axle and tie rod failure, as it impacts vehicle control.

Owners of the 2019 Mazda CX-9 report issues with the vehicle's braking system, including unexpected activation of the brakes while driving. One owner describes a sudden, hard brake at approximately 35 mph without any driver input, accompanied by multiple warning messages related to the brake and sensor systems. Another complaint mentions general vehicle maintenance issues, though specific brake-related symptoms are not detailed. The unexpected braking incident poses potential safety risks, as it could lead to loss of control or accidents. These issues appear to occur without a specific mileage pattern, making it important for potential buyers to be aware of these reported problems.