2010 Mazda MAZDA6 Problems

What owners report

Owners of this model year most often report a melting, sticky passenger-side dashboard that produces glare and cracks, and rear subframe rust that can upset the steering and handling. Airbag-inflator recall notices and headlight failures also come up often, usually at higher mileages on cars kept in humid or road-salt regions.

1. 1
   Suspension

   Rear subframe rust and steering pull

   • 73 complaints (32%)
   • median 100,000 mi at 8.9 yrs old (53 state mileage)
   • 1 mention a crash, fire or injury
   • filed 2011–2026

   Complaints describe the rear crossmember or subframe rusting through, sometimes cracking or separating, which owners link to the car veering to one side, vague or loose steering, unusual noises and a tire rubbing the wheel well. Several owners say the vehicle had been through the structure/suspension recall campaign and that the problem returned or was not fully addressed. Dealers and independent mechanics typically diagnosed a rusted crossmember or engine cradle needing replacement, and some owners report the repair was not covered. Mostly reported between about 80,000 and 180,000 miles, typically on cars in states with road salt or long-term moisture exposure.

   Recall 18V6310001 related service bulletin

   What to check: Have the car inspected underneath for rust on the rear crossmember and front cradle, and ask whether the 18V631000 recall inspection and any reinforcement were completed. A wheel alignment check can also reveal a bent or shifted rear member.

   2 excerpts from owner complaints in NHTSA records

   “8/11/2018while merging from route 9 onto route 95, I heard a clank coming from the bottom of my car, didn't think since driving through deep flooding from current rainstorm. Was on I-95 when steering seemed to go, veer to the right and brakes not catching. Was able to get off highway, regained control of car, went to my destination on rte 109. Drove, pumped breaks since I thought the problem was flooding & wet brakes. …”

   NHTSA complaint #11121246, filed 2018-08, 47,000 miles

   “My wife was driving on the interstate at 70 MPH when all of the sudden the car veered to the right causing her to go into the right lane as she was in the left lane. Thankfully no one was beside her and she was able to keep the car under control. She stopped and called me as I was at work to explain what had happened. She was just a few miles away from the exit in which we live just off the interstate so she was able to limp the car home. …”

   NHTSA complaint #11114939, filed 2018-07, 100,000 miles
2. 2
   Body and structure

   Melting, sticky passenger-side dashboard

   • 55 complaints (24%)
   • median 62,000 mi at 6.0 yrs old (35 state mileage)
   • 1 mention a crash, fire or injury
   • filed 2014–2023

   Owners describe the top of the passenger-side dash turning soft, shiny and tacky, sometimes leaving residue on hands, cloths and the windshield. Complaints say the glossy surface throws sun glare into the driver's view, and several mention cracks opening around the passenger airbag cover. According to the complaints, dealers and Mazda customer service generally declined to cover it once the warranty had expired, attributing it to heat or sun exposure; a few owners were told the dash pad needed replacement. Reported from about 28,000 miles upward, often on cars in hot or humid climates and after several years of sun exposure.

   4 related service bulletins

   What to check: Look closely at the passenger-side dash in direct sunlight for gloss, tackiness or small cracks, and check whether anything has been placed over it. Ask whether the dash pad has been replaced.

   2 excerpts from owner complaints in NHTSA records

   “2010 Mazda 6 isport passenger dashboard crash pad has been melting progressively for about 2 years. Only began noticing the dash melting upon my move to hawaii, so I assume it is a result of subpar parts and the hot/humid climate. This appears to be common with this make and model, based on research into the issue.”

   NHTSA complaint #11043808, filed 2017-11, 60,000 miles

   “Passenger side dash started melting about a year ago and has gotten so bad the dash is almost liquid. Sunlight reflects off the shiny melted dash and blinds the driver. I was in an accident because I couldn't see due to light reflecting off melted dash. Dash is so sticky that you cannot touch or it will stick to hands/ clothing. I have ruined multiple items of clothing due to this mess.”

   NHTSA complaint #11386507, filed 2021-01, 90,000 miles
3. 3
   Air bags

   Passenger airbag inflator recalls

   • 59 complaints (26%)
   • median 65,050 mi at 6.0 yrs old (19 state mileage)
   • 2 mention a crash, fire or injury
   • filed 2011–2025

   Owners describe receiving recall notices for the passenger frontal airbag inflator and then being told parts were not yet available, leaving the front passenger seat unusable in the meantime. Some complaints also mention the airbag warning lamp staying on or the passenger airbag indicator behaving unexpectedly. A few owners point to cracks in the dash over the airbag cover as an additional worry. Reported across a wide mileage range, from around 30,000 to over 130,000 miles, and often tied to recall notice timing rather than a specific failure.

   Recall 19V782000 · DO NOT DRIVERecall 17V429000 · DO NOT DRIVERecall 16V5940002 related service bulletins

   What to check: Check the VIN against open airbag recalls and ask for documentation that the inflator and airbag control unit campaigns were completed. Confirm the airbag warning lamp goes out after the self-test at startup.

   2 excerpts from owner complaints in NHTSA records

   “I started noticing cracks on the dashboard on the passenger side where the airbag deploys. My vehicle was stationary when I noticed ththe cracks the following morning. I am concerned that the airbag might accidentally go off with the slightest vibrations or closing of the vehicle doors.”

   NHTSA complaint #11312073, filed 2020-02, 137,000 miles

   “My passenger airbag cover has a crack going over the entire dashboard where the airbag is located. It was not there one day, and the next day it had a huge crack in it,after a very good winter night. The crack,is getting wider. I'm afraid the air bag is going to,deploy while driving.”

   NHTSA complaint #10940011, filed 2017-01, 138,000 miles
4. 4
   Exterior lighting

   Headlights out or intermittent

   • 17 complaints (8%)
   • median 72,500 mi at 7.2 yrs old (14 state mileage)
   • filed 2013–2021

   Complaints describe one or both low-beam headlights going dark, sometimes coming back on when the lens or housing is tapped, and recurring after bulb replacement. Owners say this happens while driving, including at night, and note that the bulb is awkward to reach. Some also report heat damage or melting at the headlight connector. Reported from about 29,000 miles upward, with several owners describing it as recurring and possibly worse in cold weather.

   What to check: Test both low beams and high beams, wiggle the connector and look for discoloration or heat damage at the bulb socket. Ask whether the headlamp assemblies or connectors have been replaced.

   2 excerpts from owner complaints in NHTSA records

   “I bought a Mazda 6 3 days ago and I replaced the headlight bulb because it wasn't working. When I opened the compartment I noticed that the entire u it was melting and smelled very hot. I had no turned on the headlights at this point and I removed the bulb from the electrical unit. This could have easily caught on fire.”

   NHTSA complaint #11242153, filed 2019-08, 93,000 miles

   “Driver and passenger side headlights went out. It's not the fuse or the bulbs. This happened while driving at night forcing me to drive over two hours on back roads and freeway with my highbeams on to see.”

   NHTSA complaint #11373012, filed 2020-11, 133,364 miles
5. 5
   Brakes

   Warped front brake rotors and pedal issues

   • 19 complaints (8%)
   • median 77,000 mi at 8.7 yrs old (15 state mileage)
   • filed 2011–2023

   Owners describe shaking or shimmy through the steering wheel and pedal when braking from highway speeds, which shops attributed to warped rotors at relatively low mileage. Some complaints mention the brake pedal sinking toward the floor or needing to be pumped to regain firmness. Several owners say the dealer declined to cover rotor replacement as normal wear. Mostly reported under about 30,000 miles, with some later reports tied to steering and suspension damage.

   2 related service bulletins

   What to check: Test-brake from highway speed on a clear road and feel for shudder, and check pedal firmness. Ask for brake service records, including whether rotors were replaced and when.

   2 excerpts from owner complaints in NHTSA records

   “My 2010 Mazda 6 which has less than 10,000 miles on it has been reported by the service center that all 4 rotors are out of round and need to be replaced. However, the brakes and brake pads are fine. The warranty will not cover the replacement of the rotors. Another issue is when I turn the steering wheel to the right the horn will randomly start beeping. The service center stated it did not happen for them.”

   NHTSA complaint #10399901, filed 2011-05, 9,700 miles

   “I was on a city street travelling around 35 MPH. While approaching a stop light and applying the brakes the car suddenly started pulling to the right and almost pulled the entire vehicle into a ditch. The vehicle came to a stop at the edge of the grass. I pulled the vehicle over further to avoid traffic and noticed the right tire was now touching the wheel well. After having the vehicle towed the mechanic informed me that there was extensive corrosion underneath the vehicle which had LED to the failure.”

   NHTSA complaint #11103867, filed 2018-06, 128,000 miles

Buying note. Inspect the underside for rear subframe and cradle rust and confirm the structure-related recalls were done, then check the passenger dash for melting and cracks. Verify airbag recalls are complete and test the headlights and brakes before buying.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.