Table 1 shows one common forward collision avoidance related problems of the 2021 Mazda CX9.
| Problem Category | Number of Problems |
|---|---|
| Warnings problems |
On 8/27/23, 9/27/23, 9/03/24 I was driving on an interstate highway with a 65 mph speed limit with no warning and received the following codes which slowed the vehicle to the limp mode. 1) Smart brake support and forward obstruction warning 2) activsense system malfunction 3) front radar sensor malfunction 4) engine malfunction 5) dynamic stability control malfunction I reported all three incidents to the dealer and no codes were left and the dealership had no solution for the problem. They suggested dirt, sunlight, or blowing debris caused it, but that was not the case. Luckily the first two incidents happened with little or no traffic around but the third was during rush hour and almost caused a major accident trying to get off the highway. I shut the car off, restarted and the problem resolved no lights left on or warnings appearing all three times. Contacted Mazda several times and all representatives at the dealership and California headquarters claim no knowledge of this happening. I found a few others reporting the same issue and wanted to report this.
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.
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 ozzie perez 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 ozzie perez now said that the faults are due to a faulty erg valve. Lakeland Mazda and ozzie perez 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.