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2021 Mazda CX-5: sudden unintended acceleration

6 of the 150 complaints about the 2021 Mazda CX-5 describe sudden unintended acceleration.

owner complaints
6
of this car's complaints
4%
recalls
0
Is there a fix? 1 service bulletin covers this area of the car. See below

Sudden unintended acceleration by model year

What owners say

Filed Sep 19, 2026 · Engine · CA

2021 Mazda CX-5 2.5L non-turbo. While driving at approximately 8 mph, I removed my foot from the accelerator, but the vehicle unexpectedly accelerated on its own. I did not press the accelerator pedal. I had to apply the brake to slow the vehicle down. This issue has occurred three separate times, on August 25, September 4, and September 18, 2026, at approximately 70,060 miles. The same unintended acceleration behavior occurred during all three incidents.

Filed Sep 10, 2026 · PA

Twice while making left turns from a stop into faster cross traffic, the accelerator was pressed but the vehicle barely moved (coasting) for roughly 2 - 3 seconds, then suddenly accelerated normally, creating a near-collision risk as cross traffic quickly approached. No warning lights were observed on the dash.

Filed Sep 3, 2024 · Driver assistance · NJ · crash · 2 injuries

2021 Mazda CX-5. On 8/6/24, I turned right into a parking space between 2 parked vehicles at the DMV parking lot. I turned right and eased into the parking space facing a large Ford F 150 white pickup truck. I was approximately 1-1.5 feet from the front of the white truck. I had my foot on the brake, suddenly the vehicle accelerated by itself and I heard the car revving at a very high rpm and the car took off. My sister was a passenger and she heard it as well. None of the collision or brake notification avoidance features came on the screen or were implemented as a safety measure or accident prevention. I had my foot on the brake and I had no control over the vehicle. The car lurched forward hitting the right side near the headlight of the car on my left and the pickup that was in front of me. My car hit the white pickup so hard that it pushed it out of the parking space in front of me and perpendicular to the parked cars in the row. We both were injured, my sister in ICU and had to have emergency cervical surgery for fractures impinging her cervical spinal cord. The Mazda was totaled. It is impossible for a Mazda to push the Ford F 150 pickup truck, that was facing me , out of the parking space and perpendicular to the row of parked cars with just 12- 14 inches between the pickup truck and my vehicle unless it was revved up to a very high rpm. The police report has some inaccuracies, it states I was turning left into the space but was actually turning right and says I possibly passed out but that is not true. I was in shock when the police questioned me. I have also relived every second of this accident in slow motion many times since. I am a 5 foot women and would have had to floor the gas peddle and even then would not be able to push a large pickup truck out of the space in front of me, and continue out of the parking space landing sideways in a 12-14 inch space between the front of the 2 vehicles.

Filed Jan 21, 2023 · Acceleration, Brakes · UT · crash

I experienced a sudden unintended acceleration incident. I pulled into my driveway and stopped the vehicle with my foot firmly on the brake since my driveway is sloped. I pushed the garage door opener remote when suddenly the vehicle accelerated and shot forward hitting the garage door. There was no brake action and all backup systems failed. There was no Automatic Emergency Braking or Forward Collision Warning. There were no warning lights displayed. No airbags were deployed. If the garage door had been open, the vehicle would have hit a concrete wall in the garage. The vehicle was taken to the Mazda dealership and a full circle inspection and diagnostic check. Mazda found no codes and everything was working as designed in vehicle.

Filed Oct 3, 2022 · Acceleration, Brakes · TN · crash · 1 injury

Upon exiting my local car wash, I drove my car around to the area used for vacuuming. I pulled into the parking space and when I applied the brake pedal to stop, the car suddenly accelerated and crashed into the wall of the building. I have the Car Wash Security Camera footage of this incident. It shows my brake light is ON at the car's point of acceleration and my brake light is ON at point of impact with the wall. If you need to review it, I can email it to you.

Filed Apr 27, 2022 · Acceleration, Brakes · MA · crash · 2 injuries

On April 16, 2022, around 6:45PM, I drove my new Mazda CX5 (@ 3500 miles) into our church parking lot and turned right down the first row of cars. It was light out and the weather was pleasant. I turned right into a parking space with my foot on the brake. The car was facing and perpendicular to a sidewalk that was about 10 feet away. It was separated by a grassy median. When I depressed the brake further to shift from drive into park, the car surged forward and accelerated. There was a pedestrian on the sidewalk in front of the car. I turned the wheel to the right at a 90 degree angle to avoid hitting her. I kept pressing the brake but the car kept accelerating until it crashed into a large tree. The airbag deployed. Both the pedestrian and I were transported to the hospital. The pedestrian had bruises on her leg and hip, but fortunately was not more seriously injured and was released from the hospital. I was admitted to the hospital for contusions to the heart. The car hood was crushed and the car was totaled. The incident was terrifying. The police estimated the car went from nearly a standstill to about 40mph in about 15-20 feet. There were no warning lamps or messages prior to the accident. I checked the federal safety agency website after the accident and downloaded 16 similar complaints where low mileage Mazda CX5s accelerated out of control when drivers were attempting to park or stop.

Service bulletins that may apply

Related recalls

No recalls on record for this model year.

Questions about the 2021 Mazda CX-5 sudden acceleration

Is sudden unintended acceleration a common problem on the 2021 Mazda CX-5?

6 of 150 owner complaints about the 2021 Mazda CX-5 (4%) mention sudden unintended acceleration. The model year with the most reports is 2016.

Is there a recall or service bulletin for this on the 2021 Mazda CX-5?

There are 0 recalls and 1 service bulletin for the same area of the car. Check them below with your VIN.

Other symptoms on the 2021 Mazda CX-5

Oil consumption 51Check engine light 14Adaptive cruise 5Engine failure 5Stalling 5

All model years of the Mazda CX-5

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