2015 Mazda MAZDA3

The Infotainment System will randomly change radio stations while driving, or start scanning through the various system menus, and on at least in one case, started randomly making phone calls from a connected phone. This creates a major distraction while driving. This has been looked at by the dealership and would cost $1500 for the system repair. I understand that this is a known problem.

The Mazda Connect touch screen in the center display may not accept touch commands properly or may operate by itself (ghost touch). The ITO (Indium Tin Oxide) film of the touch screen may be corroded due to moisture, which may adhere on the lens of the touch screen during the cleaning process at the plant. The corrosion may allow the electrostatic capacity to vary without any input, causing the malfunction of the touch screen.

Vehicle touch screen has aggressive and persistent “ghost touch” during vehicle operation (while in drive), which should not be possible while in drive at all. This causes any setting or feature accessible through the vehicle “infotainment” system to be activated at random leading to distracting, undesired operation. There is no setting within the “infotainment” system that allows you to disable the touch screen, leading to dangerously distracting situations. There is a voluntary extended warranty period provided by Mazda, but I was not notified required by law, nor was the warranty service offered to me when bringing my car to dealership(s) during the warranty period. Mazda is not willing to pay to fix the acknowledged safety defect.

The "infotainment" system, which includes media, navigation, hands-free calling, and the backup camera function, frequently malfunctions. The system will either freeze, or it will execute button presses on its own. The result is that it will change audio selection, make hands free calls via the connected phone, etc. on its own with no driver interaction, which is distracting while driving and could and has caused hazardous driving conditions. While I am listing the most recent occurrence in this form, this has been occurring on nearly every drive for the last 2 years. This typically happens in stop-and-go traffic. The vehicle has a manual transmission and the movement in the center console caused by shifting may be causing loose electrical connections to be disturbed and contribute to the behavior.

1. IT IS AVAILABLE FOR INSPECTION 2. THE INFOTAINMENT SYSTEM CUTS OFF AN ON AT WILL AND SWITCHES VIEWS WHEN USING THE NAVIGATION SYSTEM WHICH CAN CAUSE YOU TO BE DISTRACTED WHEN DRIVING,ESPECIALLY IF YOU'RE DRIVING IN AN UNKNOWN AREA. 3. VEHICLE HAS BEEN SEEN BY THE MAZDA DEALERSHIP WHICH REFUSES TO REPAIR EVEN THOUGH THIS IS A KNOWN PROBLEM WITH THIS MODEL AS WELL AS OTHER MODELS. 4. NO WARNINGS, JUST STARTED CHANGING SCREENS ALL THE SUDDEN. MAZDA IS WELL AWARE OF THIS PROBLEM AND THE DRIVING DANGERS THAT THIS POSES BUT YET REFUSES TO ADDRESS THE ISSUE. I DID DISCOVER THAT THEY DID ISSUE SOME TYPE OF NOTICE ON THIS BUT IT WAS NEVER A FORMAL WRITTEN RECALL . ONLY FIXED IF YOU TOOK IN AND TOLD THEM ABOUT THE PROBLEM,MOST PEOPLE I WOULD THINK DID NOT DO THIS BECAUSE IT IS COST PROHIBITIVE,THAT SYSTEM COST ABOUT $1400.00 TO REPLACE. THATS NOT POCKET CHANGE FOR MOST PEOPLE.SO WITHOUT A FORMAL WRITTEN MAILED LETTER MOST PEOPLE JUST TRIED TO LIVE WITH IT .

Infotainment and phone connect system for hands free phone use is not operational. The computer for the system is in a continuous reboot loop. This puts safety or safety of others at risk as I cannot use hands free. Mazda corporate suggested that a software update of the Connectivity Master Unit (CMU) might solve the problem. I brought the car in to Smithhaven Mazda on 090722 for update. The repair technician could not update the computer software and advised customer that the possible CMU problem is cause of concern. I was then advised that resolution would be replacement of CMU at $700. Problem was first observed 082022.

In February, 2022, my 2015 Mazda 3 experienced a major failure, while I was driving on a local road, going 35 miles per hour. All of a sudden, the engine lost power, three warning lights came on, and the car was struggling to go 20 miles per hour. Being near a friend's house, I drove there. From there, her husband followed me home. The next day, my car was towed to the Mazda dealership. The mechanic diagnosed the problem as “found TBS NUMBER: 01-014/16 and inspected coils found they were bad according to lot numbers”. He replaced all four engine coils and all four spark plugs. The service manager told me that the parts were not under warranty. My research revealed that engine coils are supposed to last the lifetime of the car, which is 150,000 to 200,000 miles for a Mazda 3. My car only had 43,048 miles. The spark plugs should have lasted about five more years. I looked into the Bulletin issued by Mazda USA. Mazda USA was first aware of a problem January, 2016. On 17 March 2016, I bought the car. Mazda USA updated the Bulletin to include my car on 29 July 2016. The car was under full warranty at this time and could have been fixed, if I had been notified of the defects. The faulty coils can cause a catastrophic failure, resulting in serious accidents and injuries. My car was a “ticking bomb”, waiting to go off. I was on a local road, with light traffic, not a secondary road or highway, with heavy traffic. Rather than notify customers of the danger of the engine malfunctioning, Mazda USA chose to remain silent. The Bulletin directs that nothing be done until a customer complains. The customer does not know to complain until the car malfunctions! The customer must complain within the normal warranty period. Mazda is hoping that the bad coils fail after the warranty period.

The multifunction / infotainment display in my Mazda went haywire last weekend--it loops through bootup sequence over and over but never loads. Backup camera still works, sort of, but the image jumps and it goes blank sometimes. I can't unplug the display or pull the fuse, or would lose backup camera altogether. So I have no Nav system, can't change radio station, etc.--and am stuck with the 7" screen flashing in my face as I drive. Local Mazda dealer advises that this is caused by cell phone transition to 5G. They took my contact info but did not offer any solution. There have been a couple of local news stories this week about other Mazda owners experiencing this issue. Interestingly, those all seem to report that owners' radios are stuck on a local NPR station. Mine is also stuck on one station, but not the NPR affiliate. https://www.geekwire.com/2022/youre-listening-to-kuow-like-it-or-not-mysterious-glitch-has-mazda-drivers-stuck-on-public-radio/