2010 Mazda Mazda6

In a letter dated September 14, 2018, Mazda North American Operations (Mazda) notified the National Highway Traffic Safety Administration (NHTSA) of a defect in the front subframe assemblies of model year (MY) 2009 through 2010 Mazda6 vehicles in certain states with high road salt use in winter months (Recall 18V-631). The recall covers approximately 48,814 vehicles that were sold or ever registered in the following states and District of Columbia:Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin. Mazda indicated that the recalled vehicles may have insufficient paint coating on the front cross member, which after continuous use in salt states may cause premature corrosion of the cross member. As the corrosion progresses over time, the structural integrity of the mounting point at the passenger side of the lower control arm may deteriorate and cause the steering alignment to change. If the steering alignment changes significantly while the vehicle is in motion this may increase the risk of a vehicle crash.ODI's analysis of complaints it has received from the public (VOQ's) and Mazda complaint data submitted in response to the information request letter for PE18-006 identified a total of 53 non-duplicative reports alleging incidents in which front cross-member corrosion had progressed to the stage of complete or partial separation of the subject steering or suspension components and another 98 reports alleging premature and/or excessive corrosion of the subject components with no separation. Mazda's recall will inspect the subframe and apply structural reinforcements, anti-corrosive wax and an AC drain tube free of charge. In cases of excessive corrosion, the subframe will be replaced free of charge.All 53 complaints alleging complete or partial separations involved vehicles that will be covered under Mazda's recall, resulting in a failure rate of 108.6 reports per 100,000 vehicles (R/100k) in the recalled population. When all complaints are analyzed by region, 150 involve vehicles included in Mazda's recall (307.3 R/100k) and just 1 involved a MY 2009 through 2010 Mazda6 vehicle not included in 18V-631 (2.8 R/100k). The field data indicate that Mazda's recall adequately covers vehicles with a risk of experiencing premature corrosion-related failure of the subject steering and suspension components in the subject vehicles. Based on Mazda's safety recall, this investigation is closed.The following VOQs allege loss or compromised steering control while vehicle was in motion:11115277, 11115790, 11128449, 10706604, 10846298, 10899584, 11019306, 11033821, 11048014, 11074634, 11078734, 11080014, 11083781, 11090944, 11091913, 11098279, 11101718, 11102209, 11102796, 11110606, 11110773, 11112830, 11113461, 11113963, 11114039, 11114567, 11114939, 11115303, 11119368, 11119423, 11121341, 11123997, 11124647, 11128648, 11128774, 11130281, 11132046, 11133295, 11133511, 11138829, 11139187, 11139486The following VOQs allege subframe corrosion detection prior to subframe failure:11141172, 11131161, 11129747, 11129349, 11129185, 11128591, 11128223, 11124644, 11122948, 11120047, 11119752, 11119362, 11118786, 11118242, 11115432, 11114568, 11114477, 11114061, 11105334, 11104096, 11103756, 11103724, 11101659, 11100420, 11099962, 11097874, 11084411, 11081783, 11034064, 11025276, 10956316Some VOQs have been omitted from this list due to duplicate VOQ submission between ODI records and Mazda records.

I recently had my front subframe replaced as part of your recall, however, the rear subframe and all components attached are suffering from the exact same rust and potential component failure as the front. I was replacing my brakes today and noticed that the entire structure is on the verge of complete failure. The right rear suspension already makes unusual noises when going over even small bumps and I imagine if I were to hit a large pothole that would probably be the end of this car. I imagine all similar Mazda 6s in the Midwest suffer from the exact same degradation and it is a major safety concern. There are places where there's chunks of subframe missing because it has rusted completely through and just disintegrated.

NHTSA ID

11746080

Incident

Jun 23, 2026

I looked up recalls on my vehicle and it states that The 2011 Mazda6 is  part of a recall (NHTSA 19V-323, Mazda 2818I) covering 2011-2013 models for front cross member (subframe) corrosion due to insufficient rust protection . In salt-belt states, this corrosion can cause the lower control arm to detach, reducing steering control and increasing crash risk.  Key Details regarding the 2011 Mazda6 Subframe Recall: Scope: The recall affects specific 2011-2013 Mazda6 vehicles (and 2009-2010 models in a previous, related recall). Location Restrictions: Vehicles must have been originally sold in, or currently/previously registered in, 23 "salt belt" states (including CT, NY, MI, MN, OH, etc.). The Issue: The front cross member may experience severe corrosion, causing structural failure of the passenger-side lower control arm mounting point. Symptoms: Drivers may notice a change in steering alignment or a broken cross member. Remedy: Dealers will inspect the cross member and replace it if necessary. Action Required: Owners should contact their local Mazda dealership to check their VIN for open recalls.  The recall was officially announced in May 2019 and is an expansion of a 2018 action.

NHTSA ID

11715942

Incident

Feb 5, 2026

The contact owns a 2010 Mazda Mazda6. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently veered to the left. There was no warning light illuminated. The contact stated that the vehicle became difficult to steer. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the engine cradle had failed and was severely rusted and needed to be replaced. The vehicle was not repaired. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 114,000.

NHTSA ID

11649768

Incident

Mar 21, 2025

Mileage

114,000 mi

The airbag light is still flashing on the dashboard after the airbag recall on this vehicle was fixed. It may be related to a different recall, which is safety campaign #16V594000.

NHTSA ID

11643653

Incident

Feb 19, 2025

Extensive rust and corrosion in rear subframe. So severe the vehicle is unsafe to drive.

NHTSA ID

11624391

Incident

Nov 9, 2024

2010 mazda 6 i series sedan the entire rear subframe/cradle is rotted along with all the other parts connected to it, the A arm, bumper stops, control arms, rear sway bar the entire rear under carriage. took it to the shop and they said there have been several complaints about this exact issue on several of these cars from 09-13 models. the parts was not painted correctly like the front that was recalled. exposed to all weather elements, the shop wants almost 4k for labor only to fix but the main problem is finding the rear subframe on these cars is almost impossible next to cost a fortune. now i have a yard ornament. junk yard wants to give me 170 bucks for the car but im not doing that. Mazda needs to fix this issue. i would of never know it was rotted out unless i took it to the shop for rear swaying and sagging. its all over the road. very dangerous and will cause a wreck almost certainly. please someone do something about this issue. dont have the money to fix this let alone buy another car.

NHTSA ID

11604971

Incident

Jul 26, 2024

The rear subframe is compromised; it separated from the body of the car. The vehicle is in my driveway and available for inspection should the need arise. The rear end had felt a bit shaky for a month so I took it to my mechanic, who declared the vehicle "unfit for the road" due to the fact that the subframe was rotted away and detached from the car itself. I was told one big bump is an accident waiting to happen...pieces of the car would go flying and I could be left with zero mobility to evade oncoming traffic. The possibility of projectiles injuring anyone around the car was enough for me to park it. The car has not been inspected by Mazda, the police, or insurance because there was no accident. Since it's not safe to drive, I took the word of my independent mechanic rather than driving it to a dealership. There were no warnings other than a bit of a sway in the rear end, which I originally attributed to its age. I've researched the issue and it seems to be a result of subpar quality with regard to the metal that was used in manufacturing.

NHTSA ID

11587423

Incident

Mar 1, 2024

The contact owns a 2010 Mazda Mazda6. The contact stated while driving 40–45 MPH, there was an abnormal sound coming from the vehicle. The TPMS warning light was illuminated. The vehicle was taken to an independent mechanic, who informed the contact that the rear main sub frame was completely rusted. There was a crack detected in the middle of the sub frame. The vehicle was taken to the local dealer, where it was diagnosed that the rear sub frame was rusted and needed to be replaced. The vehicle was not repaired. The manufacturer informed the contact that it was normal wear and tear, but no assistance was provided. The failure mileage was approximately 130,000.

NHTSA ID

11572146

Incident

Feb 11, 2024

Mileage

130,000 mi

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. 09-042/04 12/10/04 DESCRIPTION Some vehicles may exhibit inoperative electric rear window defroster grid lines, integral antenna concerns causing radio reception issues or terminal tabs pulled from the rear window glass. Follow the diagnostic and repair procedures included in this service information to inspect and service rear defroster grid lines, integral antenna concerns or broken terminal tabs.

This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket devices may be the cause of the electrical concern. Below are a few examples of unusual electrical concerns caused by aftermarket devices. Examples: 1. Devices connected to the DLC-2 (battery discharge/DTC stored) 2. Devices plugged into the 12V outlet 3. GPS tracking device (engine no start/battery discharge) 4. Dash cam (DTC stored) 5. Non-certified USB cable (Apple Carplay™/ Android Auto™ will not connect) 6. Over-sized wheels/tires (incorrect GPS location) 7. DTC C0023:14 8. Decorative trim and/or cover on the START/STOP ENGINE button Example 1: Some electrical devices connected to the DLC-2 connector by insurance or mobile phone companies may cause: Battery discharge. The device may disrupt the CAN system battery saver mode. • IDS/MMDS will not communicate with the vehicle due to poor DLC-2 connection. The aftermarket device may cause DLC-2 female terminals to spread open.

This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop manual or owner's manual. Services performed outside of Mazda's factory scheduled maintenance are not recommended. These services are unnecessary and create unneeded expenses for your customers. SCHEDULED MAINTENANCE Refer to the applicable Workshop Manual or Owner's Manual for vehicle -specific manufacturer scheduled maintenance. Workshop Manual - Refer to section 00-00 SCHEDULED MAINTENANCE. Owner's Manual - Refer to section 8 Maintenance and Care. b. Note: Please refer to the information below outlining the services not included in Mazda's Factory Scheduled Maintenance: IMPORTANT: Recommending fluid flushes when not necessary can lead to customer confusion and dissatisfaction. Fluid flushing for preventive maintenance purposes is strongly discouraged, unless otherwise specified in a published procedure (Owner’s Manual, Workshop Manual, Technical Service Bulletin, etc.).

If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarket devices may be the cause of the electrical concern. Below are a few examples of unusual electrical concerns caused by aftermarket devices.

A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling unit. This condition is usually worse during high humidity conditions. “Mazda Air Cooling Coil Coating” is available to encapsulate the mold to reduce odors. If the product is properly applied, it can effectively reduce the musty/mildew odor for up to three years. NOTE: See parts information for Mazda Air Cooling Coil Coating and Kit part numbers.

Some vehicles may experience exterior trim heat damage such (melted, separating, etc.) when parked near a glass building or Low-E windows. This may be caused by the sun's reflection. If a structure's windows create enough of a curve, the concave glass can focus the sun's rays onto a small area and acting like magnifiying glass direct the sunbeams into a hot pinpoint of light. This magnifcation of the sun's rays can cause damage to vehicle trim (see examples). Additional information and exemplar images regarding this phenomenon can be found by performing a google search.