10.0

really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
0 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2021 Mazda CX-9 miscellaneous problems

miscellaneous problem

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2021 Mazda CX-9 Owner Comments

problem #4

Oct 182022

CX-9

  • miles

A D V E R T I S E M E N T S

I was leaving for work when I put my personal items in the front passenger side first and then continued to walk around the car to get to the drivers side. Once I closed the passenger side door the car auto locked with all of my items in it including the key. Thankfully I had my cell phone in my pocket which has access to open the car via the Mazda app but it would not work. The spare key was not at the current location the car was at. We had to call someone out to unlock the car. This poses a safety problem because if I put my child in the back seat and close the door to get to the drivers side and it auto locks with them inside as well as my key I would have to resort to breaking the window to get them out. I reported this to Mazda and they deny that it-??s a problem, and I have had the vehicle inspected by Mazda and they claim nothing is wrong with it and reset the computer. No warning prior to this happening and my key has never been locked inside before. The battery in the key is not old or dead.

- Oviedo, FL, USA

problem #3

Oct 102023

CX-9

  • miles
I was in a parking lot and came to a stop and placed the car in reverse to back into a parking space. The back-up camera was on and I began to back into the parking space when the car suddenly lurched/jerked forward and accelerated on its own. The car jumped the parking lot median strip and I hit a tree head on. I had my seatbelt on and the airbag deployed. The car then reversed back off the median into the parking lot. I turned off the car. Insurance company will have it inspected. The vehicle is a total loss. I was injured with a large lower abdomen hematoma and airbag burns on arms, wrists, and chest as well as various bruising. I was fortunate to have not hit pedestrians who were walking in the lot or other vehicles that were parked in the lot. There were no warning lights, messages, sounds. The brake assist did not engage. It was frightening.

- Sarasota, FL, USA

problem #2

Oct 042023

CX-9

  • miles
6/29/2023--Vehicle stopped suddenly with i-ACTIVESENSE system malfunction, Dynamic Stability Control malfunction, Engine malfunction, engine output reduced, Front radar sensor malfunction. Dealer said these faults due to bad battery--replaced battery per Service Manager [XXX] at Lakeland Mazda. 9/10/2023--Incident #2 with same faults as above with vehicle stopping suddenly at risk of creating a rear end collision. Lakeland Service Manager [XXX] now said that the faults are due to a faulty ERG valve. Lakeland Mazda and [XXX] are absolutely clueless as to the root cause of this problem and are releasing the vehicle back to the customer with the potential of causing a significant collision that can result in serious injury and/or death. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Lakeland, FL, USA

problem #1

Oct 062022

CX-9

  • miles
Rear passenger handle and hook above seat in roof splintered into sharp projectiles flying through cabin when air bag deplopyed I showed the sharp pieces to my insurance adjuster the power of the right curtain air bag deployment broke the handle to pieces and if anyone had been in the back seat they could have had an eye put out or been emplailed by the sharp pieces

- Huffman, TX, USA

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