Which parts fail
Components named in complaints (struts, shocks, control arms, ball joints, springs).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2011 Mazda Mazda6 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2011 Mazda MZ6. The contact stated that while her son was driving at approximately 60-65 MPH, the rear subframe had detached, causing the vehicle to spin across four lanes of traffic and then crash into the median wall. The air bags were not deployed. A police report was filed that listed the cause of failure as a passenger's side rear tire blowout due to cracks along the tire. The contact's son sustained a back injury and medical attention was received. The vehicle was towed to the contact's residence where an independent mechanic diagnosed that the rear subframe had detached. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 200,000.
The contact owns a 2011 Mazda Mazda6. The contact stated that while driving at 25 MPH, the contact attempted to swerve out the way of another vehicle as she suddenly lost control of the vehicle. Due to the failure, the contact force to steer the vehicle to the left as the contact attempted to maintain control of the vehicle. The contact managed to pull over into a parking lot and called her husband for assistance. Despite the failure, the contact managed to drive the vehicle home despite the vehicle being extremely difficult to maneuver. The contact's husband managed to drive the vehicle to a local mechanic, who determined that the front subframe had failed due to excessive corrosion of the subframe. The mechanic then informed the contact of NHTSA Campaign Number: 19V323000 (Structure, Suspension); however, the contact was informed that her vehicle was not included in the recall. …
The contact owns a 2011 Mazda Mazda6. The contact stated that while her mother was driving at slow speeds in a parking area, there was an abnormally loud metallic sound coming from underneath the vehicle, and moments later, the vehicle became extremely difficult to maneuver. No warning lights were illuminated. The vehicle was towed to the dealer, who determined that the rear crossmember had detached from the vehicle due to excessive corrosion of the subframe. The contact was informed that the vehicle could not be repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 19V323000 (Structure, Suspension); the VIN was previously included, but was repaired in 2019. The contact stated that the recall repair was for the front passenger's side lower control arm. …
The contact's daughter owns a 2011 Mazda Mazda6. The contact stated that while her daughter was driving at an undisclosed speed, the steering wheel inadvertently moved to the left at a 30-35-degree angle. Additionally, the rear end of the vehicle swayed while coming to a stop. The vehicle was taken to an independent mechanic, who determined that the crossmember was severely corroded and the front driver's side crossmember had cracked. The vehicle was then towed to the dealer, where it was diagnosed that the front sub frame, sub frame link, sway bar, sub frame nuts, and bolts needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The contact related the failure to NHTSA Campaign Number: 19V323000 (Structure, Suspension); however, the VIN was not included in the recall. The failure mileage was approximately 89,000.
The contact owns a 2011 Mazda Mazda6. The contact stated that while her son was driving at an undisclosed speed, the steering wheel was turned to the right inadvertently. The vehicle was taken to an independent mechanic and diagnosed that there were holes in the subframe bracket. The contact was advised to contact the local dealer for assistance. The vehicle was towed to the dealer and the dealer informed the contact that the subframe bracket was installed prior to a recall repair as a temporary fix. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure and informed the contact that they would approve the replacement of the front subframe, sway bar, and arms only as part of the warranty. The failure mileage was 103,000.
The contact owns a 2011 Mazda Mazda6. The contact stated that while the independent mechanic was performing an oil change on the vehicle, the independent mechanic informed the contact that the rear subframe was severely rusted with holes in the subframe. The vehicle was taken to the dealer, where it was determined that the rear subframe needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 19V323000 (Structure, Suspension). The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recall. The failure mileage was approximately 129,000.
The contact owns a 2011 Mazda Mazda6. The contact stated that while the vehicle was at the dealer for routine service, the vehicle was diagnosed with rust and corrosion of the sub-frame. The contact was informed that the sub-frame needed to be replaced. The vehicle was not repaired. The contact was informed of NHTSA Campaign Number: 19V323000 (Structure, Suspension); however, the VIN was not included in the recall. The manufacturer was made aware of the failure. The contact was advised to contact the NTSA Hotline to report the failure. The failure mileage was approximately 100,000.
The contact owns a 2011 Mazda Mazda6. The contact stated that while reversing, the contact heard an abnormal snapping sound coming from the rear passenger's side of the vehicle. The vehicle was stopped and inspected, where the contact observed a big spring pushing a bar into the ground on the rear passenger's side. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 184,000.
The rear cross member / AKA (Rear Subframe) P/N GEG1-28-80X has completely rusted out. The car is no longer safe to drive per a Pennsylvania State inspection. If driven parts of the rear suspension will drop off the car creating a hazard to other motorists and the driver of the car can lose control / mobility causing a traffic accident. Picture the entire rear suspension suddenly collapsing, that is what is going to happen. The Front subframe was subject to a recall. That recall should have included the rear as it is the same material just a few feet away, subject to the same rusting issues. These subframes were not property designed to prevent rust or even withstand a little moisture, as my car has been very well maintained. When I read the online forms this is a flaw in ALL 2009- 2013 Mazda 6's and the sister car the Ford Fusion and Mercury Milan. …
After getting the recall information about the front crossmember rusting out due to corrosion, I decided to check the rear crossmember on my car. WOW, the rear crossmember is SO much worse than the front one and I've read hundreds of similar stories about the exact same thing happening to other Mazda 6 sedans around these model years (2009-2013). The rear crossmember on my car, which supports the entire rear suspension is completely rusted thru in several spots and the lower end links aren't even attached anymore because the brackets literally fell off and so now both back tires are leaning in at the top. It is very noticeable! Very unsafe to drive! I decided to park this car until a solution is reached with Mazda or the NHTSA on how to deal with this. I don't know why the front crossmember was recalled but not the rear? …
Suspension complaints in other Mazda6 years
Frequently asked questions
How common are suspension problems on the 2011 Mazda Mazda6?
NHTSA has 50 complaints about the suspension of the 2011 Mazda Mazda6, 37% of the model year's 135 complaints. The component named most often is subframe/mounting bracket (2 mentions).
Is there a recall for 2011 Mazda Mazda6 suspension problems?
No. NHTSA lists no suspension recall for the 2011 Mazda Mazda6, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2011 Mazda Mazda6 suspension problems start?
Half of the complaints with a recorded mileage happened before about 108,000 miles, and 5% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 0 fires and 1 injury to suspension problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.