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.

- Oneco, CT, USA

Rear sub frame on car rusting out. Never protected from corrosion or rust. Car is currently in shop. Car has rusted out in the joint just behind drivers rear tire. Received notice of recall on the front of car due to salt and weather conditions front sub frame area replaced. Currently multiple cars have same issues Mazda hasnt fixed or issued any repairs for this

- Frankfort, KY, USA

My gf went for a basic oil change and the automotive person was shocked to find the rear right cross bar to be suffering from incredible corrosion. He said at this point it is unsafe to drive. We looked into recalls for this make and model and there is one for the front cross bar due to insufficient or improper application of a corrosion spray on the frame. How can they say the front needs to be recalled and not the back? If the dealership didn-??t do a good job of covering the appropriate metal frame in corrosion resistant spray any car that has that level should be recalled. This is immensely dangerous

- Lincoln, MA, USA

The contact owns a 2010 Mazda Mazda6. The contact stated that while driving at an undisclosed speed, the rear frame detached from the vehicle. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 18V631000 (Suspension, Structure) and the contact related the failure to the recall. 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 160,000.

- Cleveland, OH, USA

The rear frame completely corroded. I was on my way to work this morning and the frame broke due to corrosion. I almost lost my life this morning. According to the recall only the front end was considered faulty. I took the vehicle in for the recall and only the front was looked at and replaced.

- Cleveland, OH, USA

I took car to dealership for recall repair (3) one of which was for front sub-frame corrision While it was there thet called Me and said that the rear sub-frame was rausted so bad it was unsafe to drive and that it would cost $4600 to fix it. It seems to Me if You aknowledge a corrision problem in the front then You would accept responsibility for rear. Mazda said that They would have fixed it if the title were not branded ? It was wrecked in the front end and I replaced hood grille bumper lights etc and has nothing to do with the rear sub-frame. The Mazda Forum say's that it is shoddy workmanship. This car only has 147,000 miles on it and runs like a new car. I am a US army Vet 10 years) and am retired and cannot afford to fix this on My own and this is about doing what is right so I am asking You to help Me to get this problem fixed so I can drive this car. Thank You,

- Morning View, KY, USA

While im driving the steering is shifting to the right and seems lower on right side. My tires daily need to have air in them because of the uneven weight. While I drive and let go of the gas the car pulls back like an E brake could be stuck not sure though. No accidents at all but it seems like the vehicle is getting weaker and weaker with the uneven weight going down on the tires and steering seems like it's going to crash onto the right without being able to control it.

- Crystal, MN, USA

The contact owns a 2010 Mazda Mazda6?. The contact stated while driving approximately 25 mph and drove over a bump and lost control of the vehicle and crashed into another vehicle. The contact stated the disc off warning light was illuminated. The contact stated no one was injured nor sought medical attention. A police report was not filed. The vehicle was not drivable. The contact was towed to her residence and then to a local dealer, where it was diagnosed with the rear structure was corroded and needed to be replaced. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 180,000. The contact stated that the dealership deemed the vehicle unsafe to bring to the shop and therefore did not perform the necessary repairs in the recall. The dealer notified the contact about that as well as the manufacturer. The contact must arrange a way to tow the vehicle off of their lot.

- East Cleveland, OH, USA

The rear subframe is corroded with rust to the point of about to break into pieces. I did not have control of the vehicle and could not drive above 40mph, sudden pull to one side while braking, loose steering. I could have had a wreck if the subframe would have broke before taking the vehicle in to be inspected by an independent service center. I live over an hour to the nearest Mazda dealership and the car is not drivable. No warning lamps came on and I first noticed the problems around January 11,2023. The part looks completely tissue thin all over and the rest of the components look new bolted to it. I do have pictures from the independent service center. I think the car needs to be seen by a regional service manager like a Mazda engineer. This is not just rust this is a defective part that was to thin to begin with.

- Smithville , TN, USA

The contact called on behalf of a client who owns a 2010 Mazda Mazda6. The contact stated that the steering wheel failed to operate as designed and the vehicle was pulling either to the left or the right. The vehicle was diagnosed that the rear passenger-??s side cross member was rusted and needed to be replaced. The dealer was notified of the failure and the contact was advised that the rear cross member was not covered. The vehicle was not repaired. The manufacturer was notified of the failure and the mechanic was informed that the customer was liable for the cost of the repair. The failure mileage was approximately 70,000.

- Noblesville, IN, USA

Rear subframe is rotted

- Rochester , NY, USA

The contact owns a 2010 Mazda Mazda6. The contact stated that the vehicle had previously been serviced at the dealer under NHTSA Campaign Number: 18V631000 (Suspension, Structure). The contact stated that while driving at an undisclosed speed, she lost control of the vehicle. The failure caused the passenger's side rear tire to rub on the fender while driving. The vehicle was taken to an independent mechanic who diagnosed that the passenger's side rear subframe was severely corroded and had fractured in half. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 82,000.

- Toledo, OH, USA

Crossmember rust from recall campaign 2818I is able to effect structural attachment despite recall work. The recall installed an "improved: cross member. This was not an actually replacement cross member, rather additional plate steel between the rear and front of the existing attachment points of the defective OE cross member. Improved cross member contains no provisions to support rapidly corroding lower control arm attachment point in original cross member. Added member for recall also does not appear to additionally support lateral stresses from control arm. Evaluation of original cross-member seemed inadequate to detect structural integrity based on condition of the cross member today. "improved" cross member does not support mounting points of the control arm. Based on recall documents, some "improved" cross members have supports for Lower Control Arm (LCA) mounts. This issued occurred with sudden change in steering and braking characteristics. Vehicle suddenly started pulling right. Issue further exacerbated after follow on braking. Passenger wheel suddenly lost alignment and camber is indicating lower attachment geometry change. I was able to control vehicle, but with significant effort.

- Fruitport, MI, USA

My front sub frame was completely rotted, unsafe to drive and was repaired with Mazda's recall. It now appears that the REAR sub frame is rusting at an excessive rate. I have been reading several complaints where the same incidents are happening with the rear sub frame snapping while people are driving. Car is not safe. This needs to be addressed by Mazda. They are aware of front sub frame, but failed to include the REAR sub frame. Not sure what to do at this point, it will costs thousands to repair, yet is NOT SAFE to drive. Please look into this matter as this is a very serious issue and will result in serious injury or death.

- Harrison Township, MI, USA

after exiting the highway at 65+mph turned the corner and the rear of the car dropped and started dragging the ground without warning. pulled over to see rear suspension on the ground.i contacted dealer about it and they seem to be aware of similar complaints but do not seem to care.could have been different outcome one minute earlier !! this is the second time the frame collapsed on me in this car the first time was the recall 2818l same thing broke without warning. this is bad metal in the frames and someone is gonna die before mazda admits the cars are unsafe as lots of these cars are still on the road.

- Kent, OH, USA

The wheels were turning in and the steering was really hard to keep straight had to turn the steering wheel almost half around car make Loud screaming noises.tires went flat..i have 6 grandkids lucky I wasn't going fast the car could of flipped.subframe broke in half on passenger side rusted right out.i got this car from right way dealership in Saginaw Michigan in march of 2019 they never told me or never contacted me that there was a recall for the subframe breaking.could of killed someone!!!!

- Bay City, MI, USA

The contact owns a 2010 Mazda Mazda6. The contact stated while driving 10 mph, the vehicle made an abnormally loud sound by the passenger's side engine compartment. The steering then became difficult to turn. The contact stated that there was no warning light illuminated. The vehicle was taken to the local dealer bill gatton of johnson city Mazda (2909 N. roan St, johnson city, tn 37601, (423) 418-6152) where it was diagnosed with needing the subframe to be replaced. The vehicle was not repaired. Upon investigation, the contact associated the failure with NHTSA campaign number: 18V631000 (suspension, structure) however, the VIN was not included. The manufacturer was informed of failure and the contact was referred to NHTSA for assistance. The failure mileage was approximately 150,000.

- Kingsport, TN, USA

The contact owns a 2010 Mazda 6. while turning the steering wheel in either direction, a popping noise was heard from the front passenger side of the vehicle. The popping noise was more audible when making left turns and while turning with the transmission in reverse. The vehicle was taken to an independent mechanic who was unable to determine the cause of the failure. The local dealer was not notified. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 120,000.

- Mcdonough, GA, USA

The contact owns a 2010 Mazda 6. the contact stated that there was extensive rust and corrosion on the vehicle. The vehicle was included in NHTSA campaign number: 18V631000 (suspension, structure). The vehicle was taken to mcdonald Mazda (10345 w colfax ave, lakewood, co 80215, (720) 449-9900) where the cross member was inspected, but they refused to install a side member (for reinforcement). The dealer also had not replaced the air conditioner drain hose and no rust proofing was applied to the cross member. The vehicle was not repaired due to non-compliance of the dealer and the manufacturer. The vehicle was not being driven. The approximate failure mileage was 103,981. Consumer stated upon seeing the underside of the vehicle I immediatedly noticed corrosion covering large portions of the cross member. There were several corroded mounting holes and large welds that had signs of advanced decay. The damage was obvious and I took several pictures and recorded a video showing the widespead corrosion. 'parts of this document have been redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).'

- Denver, CO, USA

While making a right turn, I hit the brakes to avoid colliding with someone who pulled in front of me and the passenger's side front wheel locked into a position turned to the right. I had it towed to a repair shop, where I was informed that the control arm had separated from the frame due to rust. It seems there was a recall for this issue in 2018 for certain states, and while I do not currently reside in one of the affected states, I used to and my car did for most of its life.

- Mount Pleasant, SC, USA