2021 Mazda CX-9 Recalls, Problems & Safety Rating

2021 Mazda CX-9 recalls

Most common 2021 Mazda CX-9 problems

Problem areas named in the 40 complaints owners filed with NHTSA.

Problem area	Reports
Engine	21
Unknown Or Other	6
Power Train	5
Service Brakes	4
Forward Collision Avoidance	4
Vehicle Speed Control	3
Back Over Prevention	2
Air Bags	2
Electrical System	2
Steering	1

What owners report

2026-10-14, Electrical System
2021 Mazda CX-9 (VIN: JM3TCBDY3M0538768 / 72,400 mi) Vehicle has suffered complete, sudden loss of motive power at high freeway speeds on four separate occasions. Without warning, the engine loses all propulsion, essentially stalling mid-traffic and forcing me to dangerously coast across active freeway lanes to the shoulder. This creates an extreme risk of a high-speed rear-end collision. No crash or injuries have occurred yet, but the car is entirely unsafe to drive. The authorized Mazda dealership has been completely unable to diagnose or fix this intermittent failure. Due to the persistent danger, the vehicle is currently at the shop with the same problem, where it has been since Oct 8, 2

2026-09-12, Vehicle Speed Control
I entered the interstate normally, with no issues accelerating or merging. While driving at approximately 70 mph, in traffic, all three warning messages appeared on the instrument cluster at the same time: “Smart Brake System Malfunction,” “Driver Attention Alert System Malfunction,” and “Forward Smart City Brake Support Malfunction.” At the same moment, the vehicle began to lose speed. I pressed the accelerator pedal firmly. The speed continued to decrease instead of increasing. I could not accelerate at all. An exit was thankfully immediately available. I took the exit, then continued on a side road, then into a parking lot before I could find a safe place to stop. At no poin

2026-08-27, Tires
On a high-speed highway (Route 14), the vehicle suffered a sudden flat tire/air loss event, forcing an emergency pull-off onto a narrow shoulder with 65 mph traffic. Subsequent inspection revealed the failed tire and the rest of the set were manufactured in late 2007 (DOT code 4907). These 19-year-old tires were installed by a professional tire shop despite being far beyond their safe service life. Component/System Failed: Tires (Set of 4). Tire Size: 255/50 R20 (Vredestein Wintrac 4 Xtreme, DOT 4907). Available for inspection upon request. Safety Risk: Sudden tire failure at highway speeds created immediate loss-of-control risks and exposed occupants to high-speed semi-truck traffic on a

2026-08-10, Vehicle Speed Control
The vehicle was parked stationary in the driveway with the engine running for 3-5 minutes with the A/C on. The vehicle then accelerated forward into my garage causing damage. Once I entered the vehicle, both the dash and shifter displayed park. Current TCU system internal failures have been reported from the pulling of data from Mazda.

2026-07-23, Engine
1) What component or system failed or malfunctioned: On 6/12/2026 While drive on the highway with our daughter in the car and we experienced a high speed stall. The engine failed and we lost power. We barely got the car of the highway and coasted into a parking lot. 2) Life threating for Father, Mother and daughter and other drivers on the highway. 3) The Mazda dealer stated they were unable to reproduced problem. The diagnostic report showed few random misfired on two cylinders 2 & 3. Autozone detected codes P0300 with Secondary DTCs U0442-00 4) There car was only inspected by the dealer. The vehicle has not been inspected by Mazda the manufacturer. We requested Mazda to esca

2021 Mazda CX-9 questions

Does the 2021 Mazda CX-9 have any recalls?

Yes. NHTSA lists 1 safety recall for the 2021 Mazda CX-9: Rear Seat May Slide Forward in a Crash, Raising Injury Risk. Recall repairs are normally free at an authorized dealer.

What are the most common problems with the 2021 Mazda CX-9?

Based on 40 owner complaints filed with NHTSA, the most-reported problem areas are Engine (21), Unknown Or Other (6), Power Train (5).

How do I check if a recall on my 2021 Mazda CX-9 has been fixed?

Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.