2016 Mazda MAZDA6 electrical problems

Filed Nov 9, 2026 · Electrical, Steering · TX

All of the warning lights on my dashboard light up and beep sporadically. The vehicle stalls when I blow the horn or use the left turn signal, which is extremely dangerous on the freeway. The power steering occasionally fails. I took the vehicle to two service shops to have a diagnostic run and they both said that the code indicated that I would have to take the vehicle to the dealer. I checked the federal safety agency website to check for recalls using my year, make and model. I found the federal safety agency campaign number 17V‑546 and the Mazda recall number 1517H, which accurately describes the issues that I am having with my vehicle. I took the car to a Mazda dealership and the service manager informed me that they could not repair the recall because my VIN number was not included in the original recall. I am hoping that Mazda will make the necessary repairs because this is a major safety issue.

Filed Oct 21, 2025 · Electrical, Seats · 113,500 miles · WI

The contact owns a 2016 Mazda Mazda6. The contact stated that after her husband had driven for approximately 2 hours with the seat heater activated, the passenger’s side seat overheated, and the seat started smoking. The driver stated that the seat heating element overheated and burned a hole in the seat, damaging the air bag located near the seat heater sensor. The dealer was contacted, and an appointment was scheduled. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 113,500.

Filed Jun 19, 2025 · Electrical, Engine · IL · 1 injury

PCM ISSUE, passenger air bag issue, OCS wiring issue. infotainment system, transmission, and engine. Key fobs not able to be reprogrammed due to PCM issue

Filed Mar 21, 2022 · Electrical · 110,000 miles · MA

The contact owns a 2016 Mazda Mazda6. The contact stated that while starting the vehicle, the security indicator light was continuously flashing. The vehicle was taken to a local mechanic and diagnosed as a security indicator light failure. The vehicle was repaired; however, the failure recurred. The manufacturer was notified of the failure. The approximate failure mileage was 110,000.

Filed Aug 31, 2021 · Electrical · NY

The vehicle infotainment system in this 2016 Mazda 6 no longer works and has what is called a rolling reboot. This seems a common problem with Mazda's based on a service alert SA-011/20 as well as a TSB 09-020/18. When broken I can't use the hands free to make or receive calls, nor can I modify preferences, service warnings, use the radio etc. The car is out of warranty and the part known as a connectivity master unit (CMU) is over $1000 including tax. I think Mazda should at least provide a replacement part for this very common problem, which effects many models.

Filed Sep 3, 2020 · Electrical · 60,000 miles · MO

My infotainment unit is in a constant reboot. I cannot access my car settings or radio or bluetooth, and the rear view camera is not working every time. It was fine and then it wasnt. I took it to the dealer and they told me it would be 1500 dollars. I see a lot of people with this problem in my research. I think this should be a recall because it is a safety issue since I cannot access my car settings, my camera is not working and my alert for when someone is behind me is also not working. I have a video of the reboot. It is also very distracting to be driving with a computer that is constantly rebooting. The system is rebooting when the car is on, while driving and while sitting still. I reached out to mazda who said it is not a recall yet but if I paid for the fix and they did call a recall I would get reimbursed. A 1500 dollar fix for radio is ridiculous and a car that is only 4 years old. The computer malfunctioned is my only guess and they should have to replace it since it is a safety issue and multiple people are having the same issue. Please help. I have a safety inspection due at the end of this month and im not sure it will pass.

Filed Aug 5, 2020 · Acceleration, Brakes · 40,000 miles · ID

I was braking to a stop after decellerating, driving originally about 45 MPH. Traffic was stopped in front of me. I was in motion on a highway, going straight ahead. My car slowed but resisted stopping. I pressed on the brake pedal harder until I came to a complete stop. My right foot was entirely on the brake, as I only use my right foot to operate the pedals. The engine was revving like it was accellerating. The car was in drive. No warning lights came on the dash. The engine continued to rev higher in intensity. I put the car into park, and the engine revved much higher. I pushed the start/stop button to turn off the car. The warning lights came on the dash. I was able to roll down the power window even though the car was turned off. I tried to restart the car after about a minute. The starter engaged, but the car did not start. I tried twice again and it did the same thing. I tried a fourth time and it reacted as if the battery was almost dead, some sound but no movement. I couldn't put the car in neutral to have the attending police officer push it out of the lane of traffic, and we noticed the emergency brake was engaged. I did not engage the emergency brake myself! My husband arrived, and he and the officer were able to put the car in neutral, however, they were unable to disengage the emergency brake. The car had to be loaded onto a roll-off wrecker to be taken to the dealership.

Filed Mar 20, 2020 · Airbags, Brakes · 54,900 miles · AK · crash · 1 injury

Tl* the contact owned a 2016 mazda m6. The contact stated that while driving about 20 MPH in the snow, the brake pedal was depressed and the vehicle lost all powers as the steering failed. The vehicle slide and rear-end the vehicle in front. There were no warning lights illuminated. The passenger side door air bag was the only air bag that deployed. The contact stated that the vehicle failed to restart after the incident. The contact also stated that the parking brake was engaged and failed to disengage. A police report was filed. The contact sustained a lower back and neck injuries that required medical attention. The vehicle was towed to a tow yard where the vehicle was deemed a total loss however, the contact has retained the vehicle. The contact called continental (4800 old seward highway, anchorage, ak 99503) and was told that there was no recall. The manufacturer was called but no one answered the phone. The failure mileage was approximately 54,900.

Filed Nov 13, 2019 · Electrical · 42,200 miles · FL

This mazda 6 model is equipped with a video display screen mounted on the dashboard that operates the radio, communication, and most importantly, the view projected by the rear view camera. Upon ignition, the screen operates for about 30 seconds and then goes dark and shuts down. The rear view safety feature is disabled thereby jeopardizing public safety. The screen shuts down whether the vehicle is moving or stationery, on the street or in the garage. I notified the mazda customer experience center, by letter, of the problem, but got no answer.

Filed Jul 27, 2017 · Electrical · 140,000 miles · DE

When pressing the start/stop button, the ignition does not turn off although the shift lever is in "p" position and the "engine" shuts off normally, the ignition stays on (in accessory mode).