general problems of the 2009 Mazda MAZDA6

21 problems related to electrical system have been reported for the 2009 Mazda MAZDA6. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Mazda MAZDA6 based on all problems reported for the 2009 MAZDA6.

1 Electrical System problem

Failure Date: 05/25/2024

The sensors on my alarm system will randomly activate, with alarm going off at 30 second intervals. The problem began approximately 6 months ago. I took the initiative to replace my cars battery, along with the battery in my fab. I really thought that solved my problem, as a first step fix. I began once again to identify the sound of my car alarm in multiple parking lots throughout time. I have been investigating this problem, and have read that this alarm problem has been sited by many Mazda 6 owners. I am the original owner of the 2009 Mazda 6 grand touring, and have 67,000 miles driven. I called the repair department at my dealership, and was told that it cost $185. 00 for just the diagnosis. My auto insurance company policy price is based on using a secured vehicle. Right now I only can leave it unlocked in my garage, otherwise, my vehicle is at risk of being stolen.

2 Electrical System problem

Failure Date: 11/16/2021

The driver's side low beam headlight wiring harness melts and seems to be continuing problem. Even after replacing stock, (which melted,) with a better wiring harness it still began to melt and loose circuit, but like I said it was doing this before ever being replaced. Happens every couple months are so depending on amount of night driving. I have read several complaints about this happening to several owners of the same vehicle on the same drivers side with the same original harness and replacements doing this same melting and frequent on/off short circuit malfunctioning. Possibly causing a fire or fried wiring or loss of headlight causing unsafe conditions.

3 Electrical System problem

Failure Date: 05/24/2021

My car had a air bag recal and a subframe and other misc recalls so I contacted the dealership near me which was in springfield mo and set a apt and had it replaced then got a call the next day saying they wuld meet me half way with a loaner car which was in mansfield mo for the subframe replacement and they have had it for over a month and they called and told me it was ready for pick up 6/21/21 and I drove up there wed to pick it up and it wuldnt start wuldnt do nothing dead battery. Dealership then hooked up a jump box the gauges started jumping all back and fourth like something was shorted or a short some were got it started and the min the jump box turned off the it killed all power the car shut completly off to nothing. So they gave me the loner vehical back and they drove me my car to west plains mo and they took the loner vehical and I got in my car and the air bag light is flashing very fast constly the steering is super tight and the brakes feel weird the passenger side is missing a piece in the dash only lights that was on my car when they picked it up was the tire sensor light and the check engine light got pics to prove and show everything. . I’m driving it back to dealership to see if they can fix or make it right and give me the loner vehical back till they get my car back to the condition it was in when they picked it up for a recall repair. .

4 Electrical System problem

Failure Date: 09/01/2020

My car steering veers to the left constantly. The electrical system is wired wrong and doesn't work properly. This happens while I'm driving all the time and its only a matter of time before it causes me to wreck.

5 Electrical System problem

Failure Date: 05/27/2020

For the last year, the car alarm in my 2009 Mazda 6 has been going off sporadically by itself at all hours of the day while parked in my apartment building parking lot. The dealer diagnosed that my passenger side door actuator needed to be replaced. It was, and a few weeks later the alarm went off again at 3:30 am, waking up all of my neighbors in the process. Brought it back to the dealer and now they say it's the driver side door actuator. There are so many reports on the internet of other Mazda owners having this same issue and there is a bulletin out there for it. Why has been this not become a recall yet?.

6 Electrical System problem

Failure Date: 09/01/2017

Headlight harness comes loose frequently, resulting in loss of headlight. Must either hit the headlight forcefully or manually secure headlight by removing wheel well. Hundreds of people on youtube have reportedly experienced the same defect. Uncertain whether this occurs while stationary or moving, but imagine vibration from motion will knock it loose again. This photo was taken after manually adjusting the right headlight via the harness in order to turn it back on. The right light is dimmer than the left, suggesting a ground issue.

7 Electrical System problem

Failure Date: 08/17/2017

Takata recall - assured by dealer parts for recall in stock. Dealer kept me there, without having the parts, for hours while searching for billable work. Suggested $759 - $1059 unrelated service. Careful post-visit analysis indicated no suck service needed. Now I'm wary of returning for recall or any other reason. Heritage Mazda catonsville MD 21228 invoice #5mcs115194.

8 Electrical System problem

Failure Date: 06/16/2016

The contact owns a 2009 Mazda 6. The contact smelled a strong burning odor inside and outside the vehicle. After entering the vehicle, there was evidence of an electrical fire. The fire department responded; however, there were no visible flames. The entire interior of the vehicle was covered with soot and smoke. The vehicle was towed to the dealer where it was dectected that the harness connector wires underneath the driver's seat were burnt and the fuse box overheated. The vehicle was repaired. Neither a fire nor a police report were filed. The manufacturer was not notified of the failure. The approximate failure mileage was 110,000.

9 Electrical System problem

Failure Date: 02/16/2016

I bought a used car with 2 dashboard light tmps & engine the dealer give me extra warranty but never been repair furthermore I find out by myself a recall for the outer door handles after the door open while I driving in the express way this happened to my youngest daughter; and in other 2 incidents the car do not respond with the appropriate speed causing me a big chance of accident afterwards it is happened again so due to to other several mechanic problems and for security I have to decided to return the car now I have no money no car and a big problem I am having hardly time tried to summit my concerns because I think the dealers are responsible for sale security cars before the sale but apparently the laws are in the dealers side as a consumer I hope maybe some one can see how this irresponsible dealers play with the consumers safety. I pay over $3,000 in repairs by my self and I have been around 90 days with out car and all this problems in a period of time of 26 months plus my payments to the dealer that was $460,00 a month this issue start on 12-6-13 to 02-26-16 after the car need a new repair at cost of $3,000 so in the reality this company was negligent when they fail to properly repair the car since the beginning they just pretend to fixed but wasn't . I want to thank you for your time.

10 Electrical System problem

Failure Date: 11/20/2015

The contact owns a 2009 Mazda 6. During higher humidity temperatures, the vehicle's alarm randomly activated. The contact was unable to determine if this issue would affect the air bags. The dealer was notified of the failure several times and was unable to provide a specific diagnosis to provide a permanent remedy. The dealer indicated that the vehicle received a manufacturer's repair for an unrelated failure. The manufacturer was notified of the failure. The approximate failure mileage was 30,000.

11 Electrical System problem

Failure Date: 05/05/2015

The panic alarm has been going off every week at least once or twice. This happens a lot in the evenings between 8pm and 11pm. It'll go off by itself for no reason at all. This happened another time last year, but only once. Now, it's happening every week and it's pretty annoying. I've read on other forums where people are having the same problem. I'm afraid this is going to kill my battery soon.

12 Electrical System problem

Failure Date: 03/20/2015

The pressure or heat coming from muffler burnt back part of vehicular I am paying 1400. 00 in wire repairs. Air bags recall, scars me don't have another car. The passenger door air noise escaping,melting dash board, alarm system goes of everyday up to 3to 4 times. Tire pressure, and engine light on.

13 Electrical System problem

Failure Date: 05/16/2014

The car's alarm system would be triggered randomly. In a period of 3 weeks it happened around 15 times. It ended up draining the car battery once. The alarm is on for few seconds and then it stops by itself. Upon taking it to the Mazda dealer they said it is a problem with door's electrical system and they had to replace the switches in all 4 doors. They were able to solve the problem, but I doubt if it is related to the recall that was made last September for fixing the door's latch system. The dealer had fixed the same just a back month.

14 Electrical System problem

Failure Date: 03/01/2014

My car alarm had been going off sporadically for about a year or more (maybe once a month), but it got progressively worse to the point that it would go off 3-5 days a week. I'd had my door latches inspected at the end of 2013 for a recall that although it wasn't electrical in nature, electrical issues could develop if it's not repaired. So, I was not expecting there to be any issues with them, but was surprised to learn that not one but both of my rear door actuators were defective. After getting that fixed the very day I picked up my vehicle from getting repairs I noticed my passenger side dashboard was shiny, and appeared to have been polished. I later learn that look actually came from the dashboard melting. Now I have melting toxic material, that also can cause a glare, in my vehicle.

15 Electrical System problem

Failure Date: 01/15/2014

Driving through a tunnel my car began to fill with smoke. I pulled over and looked for where the smoke came from and found the switch to my heated seats was on fire. My car would no longer turn on. Repair man at dealership says it's something that just happens I guess. Somewhere something shorted. I'm just glad my child was not in the car when this happened. Beware!! there are current recalls for the exact make and model in australia and europe for the same issue. I'm still waiting for the us the issue a recall so I can get my money back.

16 Electrical System problem

Failure Date: 12/02/2013

2009 Mazda6. Consumer writes in regards to automatic unlock button malfunction. The consumer stated within the last year, the automatic unlock button inside the vehicle, suddenly stopped working, and in fact did the opposite of what it was supposed to do. When the unlock button was pressed, the entire vehicle automatically locked, and at times, would not release the lock, even manually. It would take many attempts at perfect timing to select the unlock button while opening the door in order to be able to get out of the vehicle. The automatic lock button functioned as it should, locking all doors. In other words, both the automatic lock and unlock buttons only locked the doors. The consumer stated she was locked inside the vehicle on several occasions, until she was able to get the door to release. The dealer identified the problem as the body control module for the locks. However, they could not offer a guarantee that the new body control module would not have the same problem, as Mazda acknowledged a problem with the part.

17 Electrical System problem

Failure Date: 09/02/2013

Door lock actuator has failed!** alarm on my Mazda goes off at random periods of time. Sometimes its once a week and sometimes is 5 times a day or night. I have reviewed several internet forums and it appears that there are a lot of people with the same problem but they have not created a complaint on this website. The remedies that they have found to have the dealer replace a door actuator that is faulty. This door actuator locks the doors and if when it fails to properly lock the door it will itermittenly sound the alarm. The alarm is not so much the concern as much as the door lock actuator. It if fails to lock it creates a safety hazard for people as they are driving down the road the door could accidentally be opened. Children could open the door and fall out of the car as it is failing. Please look into this issue as it is a safety concern.

18 Electrical System problem

Failure Date: 06/11/2013

The contact owns a 2009 Mazda 6. The contact stated that the dashboard was melting. As a result, the sun caused a glare which impaired the contact's vision. There was also a sticky substance present. The vehicle was not diagnosed or repaired. The contact also stated that the vehicle's alarm activated randomly. The failure recurred multiple times. The vehicle was taken to a dealer for diagnostic testing. The mechanic stated that the rear driver side door failed to close and the door latch was replaced. The failure recurred and the front passenger side door latch was replaced. The contact was made aware of NHTSA campaign number: 13v425000 (latches/locks/linkages); however, the VIN was not included. The manufacturer was not notified of the failure. The approximate failure mileage was 40,000.

19 Electrical System problem

Failure Date: 09/10/2010

When ac or heat was on at any speed, it would run for a few mins. Then stop blowing out air before slowly dying out. It would make noise like it was trying to work again, but then wouldn't. Took it to Mazda dealership. They did "test on ac/hvac system & found faulty control head due to electrical failure. " they installed a heater control & the problem was fixed for a while. 3 months later same thing happened again. This time I was told the "hvac blower motor was tripping out on internal thermal overload" so they replaced the hvac blower motor. While that was getting fixed, I also had them look into another problem I was having. The tcs/dsc light would stay lit for 10-15 mins after I started my car and sometimes would just randomly come on while driving. The dealership did test & found "code c0034 - right front wheel speed sensor signal rate out of range & c0027, c0048 - right front wheel speed sensor circuit open, tech monitored sensor & found internal sensor failure. Corrected by anti-lock brake system. Installed gs3l-43-70x: right front abs sensor. ".

20 Electrical System problem

Failure Date: 03/04/2010

Started vehicle put in rev. Accelerated to full throttle, had to put in neutral still full throttle then turned off engine. No codes found.

21 Electrical System problem

Failure Date: 03/04/2010

Started vehicle put in rev. Accelerated to full throttle, had in put in neutral still full throttle then turned off engine. No codes found.


Other Electrical System related problems of the 2009 Mazda MAZDA6


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MAZDA6 Defect Investigations