2014 Mazda Mazda6 Owner Complaints

At 70000 miles the transmission just got stuck into a single gear in manual. I drove it home and the check engine light came on. Before this problem the car would not go into park. Every time I put it into park I was unable to turn off the car because it thought it was still in gear. I had to fiddle the gear stick. The car also made a high pitch click (metallic) when shifting into 1st or Reverse from park. I took it to Capitol Mazada San Jose and they charged me $7000 to fix some transmission problem. I took it home and the clicking noise did not go away. I took it back to the dealer and they redid some work.

NHTSA ID

11691361

Incident

May 20, 2025

I pulled into my parking space in front of garage door, I came to a complete stop and positively without any doubt, put my foot on the brake. As I shifted to park, all of a sudden engine loudly revved up and car suddenly and quickly accelerated through garage door. I want to make it perfectly clear, I DID NOT HAVE MY FOOT ACCIDENTLY ON THE ACCELERATOR WHEN CAR SUDDENLY ACCELERATED. Mazda checked the car and said nothing was wrong with the car. This has happened to many other people with Mazda and other makes and people are told too many times that there is nothing wrong the car when it clearly is not human error.

NHTSA ID

11683579

Incident

Aug 22, 2025

My 2014 mazda 6 EVAP system pops the p0451 when filling up gas to the first click. It goes away after a while if I take care to not fill up the tank all the way to the top. It is similar to a issue reported by recall 7414D for other 2014 mazda 6s. My car is not covered by the open recall, but it is experiencing similar issues. The p0451 goes on and off depending on how much i fill up the gastank.

NHTSA ID

11680564

Incident

Aug 13, 2025

The car will not go into Park right away. As previously reported, I have to start the car multiple times to get it into Park--can take up to 10 plus minutes before the car will go into Parkand shut off--only then I can lock the car! Very frustrating since it's a known issue and still has not been recalled

NHTSA ID

11662175

Incident

May 1, 2023

The park position sensor doesn't work. The car doesn't recognize that the car is in park and will not turn off. This is a known issue with the mazda 6 2014 and I do not know why there hasn't been a recall. I shouldn't have to pay to have this fixed. Started in 2019. Sometimes it takes 20 or more times to get the car to turn off by shifting in gear and back into park or starting and turning off the car. If you can't get the car turned off you cannot lock the doors and it will run the battery down. I just want this to be recalled so the dealership will repair. Thank you, this is a very frustrating situation. Literally my arm gets tired from slamming the gear shifter into park trying to get the car turned off.

NHTSA ID

11640547

Incident

Apr 6, 2019

The contact owns a 2014 Mazda Mazda6. The contact stated that while parked, there was a strong fuel odor coming from the vehicle. In addition, there was fuel leaking from the rear of the vehicle. The vehicle was taken to the dealer where it was diagnosed that the fuel pump needed to be replaced. The vehicle was not repaired. The VIN was not included in NHTSA Campaign Number: 14V170000 (FUEL SYSTEM, GASOLINE). The manufacturer was not notified of the failure. The failure mileage was 144,000.

NHTSA ID

11620105

Incident

Oct 7, 2024

Mileage

144,000 mi

The car had a (SUA) Sudden Unintended Acceleration malfunction. No, the car was totaled and towed away. My safety was put at risk as I was slowly pulling into a parking spot, eased my foot onto the brake and this malfunction caused my car to involuntarily jolt into a rampant high speed. It jumped a curb and crashed into a tree. My brake was useless in stopping this runaway vehicle. The only thing that stopped it was that tree! The airbag deployed and I was badly bruised from the airbag. Fortunately, there were no pedestrians or other cars near mine. There were no warning lights or messages before, during or after the accident. It happened so quickly because the tree was only a few feet in front of my car.

NHTSA ID

11619928

Incident

Sep 24, 2024

When pressing the start stop button, the ignition may not turn off the accessories, even with the shifter in park position, and the vehicle engine shuts off normally the ignition stays on in accessory mode. This can cause battery drain/dead, possibly leaving me stranded in the dangerous situation. This has been unknown problem that is been refused by Mazda to create a recall. Right now it’s the car not acknowledging it’s in park because of a faulty switch, that Mazda clearly knows about and has had tons of complaints about and is well documented with NHTSA. How bad does this need to get before Mazda puts out a recall for all vehicles affected. Eventually, it will never be able to go to park and I may get in my car to drive it and it starts off in the wrong shift the wrong and I end up in a car accident. I’m sure Mazda wouldn’t want any crashes, fires, injuries or deaths on their hands do this well established faulty switch that they refused to recall.

NHTSA ID

11586176

Incident

Mar 1, 2021

The Shifter Park Switch failed, causing the vehicle to say on when turning the vehicle off. This causes the battery to drain and created a bad cell battery. This caused the vehicle to turn off while in motion driving multiple times putting the driver and surrounding vehicles at risk. This vehicle has been inspected by the Mazda dealership/manufacturer.

NHTSA ID

11580088

Incident

Mar 21, 2024

The incident occurred while operating a diligently maintained 2014 Mazda 6 Touring, overseen by dealership service. While driving, the check engine light illuminated, prompting an immediate halt. Upon inspection, a concerning observation was made: the coolant level was significantly low. Despite no apparent leaks, further examination revealed a crack in the cylinder head, allowing coolant to mix with the oil. This issue, specific to Mazda's 2.5L Skyactiv engine, has been identified as a manufacturing defect, independent of overheating. Notably, this problem has been echoed by multiple users, confirming the presence of defective cylinder heads in these vehicles. This flaw necessitates an expensive repair, absolving the vehicle owner of any responsibility. Despite the widespread occurrence of this issue, Mazda has declined to issue a recall for vehicles equipped with these faulty cylinder blocks. Online forums and discussions have highlighted numerous instances of identical cracks in the same location, affirming the prevalence of this problem with Mazda's 2.5L engines. This poses a serious concern for vehicle safety and warrants attention from both Mazda and vehicle owners. Additional information regarding this issue can be found through the provided links. [XXX] [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11563532

Incident

Dec 18, 2023

When I put the car in park and push the push start/stop button, the car shuts off but the accessories and middle console display stay on. I have to keep shifting the car between the park position and the drive position before I put it back to the park position for the car to completely shut-off. This car is available for inspection. As far as safety is concerned, the only thing I can think of is that if the car does not completely shut off the battery would drain and not be able to start the car. I took the car to my mechanic and he said that I need to take it to the dealer. The dealer was informed and the dealer said that it was not a recall. The car was only inspected by my mechanic. There were no warning lights or messages in the car or symptoms prior to this happening.

NHTSA ID

11557125

Incident

Nov 27, 2023

The contact owns a 2014 Mazda Mazda6. The contact stated that on multiple occasions, the vehicle would stall upon the depression of the accelerator pedal as a fuel odor would emit from the vehicle. The check engine light would also appear on the instrument panel. The vehicle had been taken to an independent mechanic who replaced the fuel line O-ring seal on three separate occasions. The manufacturer nor the dealer had been notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 40,000.

NHTSA ID

11549242

Incident

Jan 1, 2023

Mileage

40,000 mi

The contact owns a 2014 Mazda Mazda6. The contact stated that the vehicle was recently repaired under NHTSA Campaign Number: 17V393000) (Parking Brake). The contact stated that after the recall repair was completed and she arrived at her destination and attempted to shut off the vehicle, the vehicle failed to shut off. The contact disconnected the battery to shut off the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 145,000.

NHTSA ID

11537241

Incident

Aug 7, 2023

Mileage

145,000 mi

IGNITION DOES NOT TURN OFF WHEN PRESSING START/ STOP BUTTON When I park the car i.e. set the gear to Park position it doesn't turn off completely. The electricals in the car are ON and this is noticed for multiple mazda 6 and mazda cx-5 cars and despite complaining to the dealers there is no resolution from Mazda.

NHTSA ID

11517029

Incident

Apr 14, 2016

The vehicle wont shut completely off when you press the start/stop button after shifting into "Park". The relay that tells the car it's in Park is faulty and the car wont shut off all the way. This will drain the battery and not allow the driver to lock the doors when they exit the vehicle. This is stranding hazard I've seen lots of YouTube videos and online forum complaints about this problem. It should be added to the recall list

NHTSA ID

11510075

Incident

Mar 3, 2022

Blind side modules have to be replaced. Mazda bulletin BSM indicator flashing dtc u3000 2013-2015 Mazda. No accidents or body damage yet dealers is asking $2100 dollars for repair. 2014 Mazda 6 with 99k miles. BSM is very useful and functional when working and provides an added element of safety.

NHTSA ID

11495196

Incident

Nov 16, 2022

The contact owns a 2014 Mazda Mazda6. The contact stated while attempting to turn off the vehicle, it was not operating correctly. While the vehicle was parked, it was unable to shut down. The contact would shift back and forth to different gears for the vehicle to shut down correctly. There were no warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was unknown.

NHTSA ID

11479572

Incident

Mar 1, 2019

I was at a doctor's office and their parking lot has a large slope. I parked facing up the slope and applied the parking brake. When I exited the vehicle, I felt the vehicle slowly sliding backwards. I pushed rearward on the car to check if the brakes were holding which accelerated the roll. I jumped back in the vehicle and depressed the brake pedal to stop the roll. I replaced the rear brake pads and noticed extremely uneven wear. Additionally, the left-rear caliper parking brake actuator was bound-up and wouldn't function. I exercised the actuator to loosen it up a bit which should be just enough until I can order the part. I experienced this same issue with my parking brake in 2017. In 2017, I took the car to the dealer who replace the rear brake calipers under recall 17V393000. I called the dealer today 8/16/2022 and they stated the calipers cannot be replaced under warranty or recall again. I find it extremely disturbing that the parking brake would experience such an extreme failure twice in the 8 years I've owned this vehicle. In 2017, the parking brake released suddenly while the car was unattended sending the car down my 100ft driveway, glancing my house and crashing through a wooden fence before stopping. Luckily, this time (2022), I know of the prior issue and can be proactive about replacing the faulty part. These calipers need a redesign where the calipers can last more than 5 years before such a safety failure... or that the parking brake not functioning while unattended isn't the first indication of failure.

NHTSA ID

11479546

Incident

Aug 10, 2022

Ignition does not turn off when pressing start/stop button draining battery with car completely shutting down while driving, coasting to the side of road almost causing an accident. Second time, car was parked, would not restart, had to get a jumpstart as battery was drained once again. Third time, car wouldn't restart at all and car had to be towed.

NHTSA ID

11471904

Incident

Apr 24, 2022

The contact's son owns a 2014 Mazda Mazda6. The contact stated that while her son was attempting to shift into PARK, the vehicle failed to recognize the gear selected, causing the battery to drain over time. There was no warning light illuminated. The vehicle was taken to an independent mechanic but was not diagnosed or repaired. The contact was referred to the NHTSA for assistance. The manufacturer was not made aware of the failure. The approximate failure mileage was 45,000.

NHTSA ID

11451839

Incident

Jun 1, 2021

Mileage

45,000 mi

When you turn the car off the accessory stays on. In other words it doesn’t shut off all the way. That is a hazard because the battery will go dead in time. I looked on the internet and found a lot of complaints about this issue with these cars. The car has a defective shifter switch. Mazda won’t recall the part even though there have been many complaints. This is a defective part. If a part is defective they should recall the part. I don’t see why I should have to pay $400.00 to put a $50 part in my car that is defective. My car is available for inspection upon request.

NHTSA ID

11438520

Incident

Oct 2, 2019

After driving when i got to put the vehicle into park- I place it in park but it gives me a error saying not in park

NHTSA ID

11424404

Incident

Jul 12, 2021

I think it is unfair that a manufacturing problem has been unnoticed and left to people to pay for. I am already paying enough for this car to also have to worry about a manufacturing problem that has been left unattended by the company. This certainly is very dangerous as I might have the cars battery die and have no way of getting immediate help and right now it's just the car not acknowledging the parking mode but what if one day the car starts using the wrong shift unknowingly to me and I end up in a car accident because of this? I wont be able to do anything as this has been left unnoticed and no recall has been made even with the dangers it presents to the driver and the car itself. Some of this informations was found on https://Mazda.oemdtc.com/665/ignition-does-not-turn-off-when-pressing-startstop-button-2013-2014-Mazda

NHTSA ID

11419166

Incident

May 25, 2021

BUENOS DIAS EN EL ANO 2017 MANEJABA EN LINEA RECTA APROXIMADAMENTE 40 M/H LOGRE VER UN VENADO Y APLIQUE LOS FRENOS PAUSADAMENTE EL CARRO SE DEZPLAZO HACIA LA IZQUIERDA SIN RAZON ALGUNA SALIENDO FUERA DE LA CARRETERA E IMPACTANDO CON EL ORILLO DE LA CARRETERA CAUSANDO DESPRENDIMIENTO DEL CAUCHO DERECHO Y MUCHO DANO EN LA SUSPENSION AHORA DESPUES DE 3 ANOS ME DOI CUENTA POR MEDIO DE LA MAZDA QUE ALGUNA PARTE DEL SISTEMA DE FRENOS EN ALGUNOS MODELOS A SIDO DEFECTUOSA ESTO A PODIDO OCASIONAR LA MUERTE DE MI FAMILIA

NHTSA ID

11355574

Incident

Feb 7, 2018

Mileage

90,000 mi

RADIO AND ACCESSORIES DO NOT ALWAYS SHUT OFF WHEN ENGINE IS TURNED OFF CAUSING ELECTRICAL DRAIN ON BATTERY. HAS HAPPENED MANY TIMES. DEALERS THINK IT COULD BE PARK SWITCH. ANY RECALLS ON THIS ISSUE?

NHTSA ID

11349687

Incident

Aug 15, 2020