2006 Mazda MAZDA6 Problems

What owners report

Owners of the 2006 Mazda6 describe two dominant themes in the sampled complaints: a large share relate to Takata air bag inflator recalls, often with long waits for parts or with air bags that did not deploy in a crash, and a smaller but consistent group describes automatic transmission downshift or slip events that produce a hard jerk or loss of power when accelerating or climbing. Remaining reports are spread across electrical glitches, subframe rust near the steering and suspension mounts, and brake-pedal assist problems in cold weather.

1. 1
   Transmission and drivetrain

   Transmission slips, revs, then jerks hard on downshift

   Mentioned in 11 of 60 sampled complaints

   Owners describe the automatic transmission revving high or slipping out of gear, then dropping into a lower gear with a hard jerk, often described as feeling like being hit from behind. Complaints say this happens most when accelerating, climbing a hill, or shifting between the upper gears, and some report brief loss of power at highway speed. Some owners were told a service bulletin addresses the symptom, while others said the dealer could not duplicate the problem or recommended a full transmission replacement. Mostly reported between roughly 20,000 and 85,000 miles, often during acceleration or uphill driving.

   1 related service bulletin

   What to check: Ask whether the transmission has been serviced or replaced and whether any related bulletin work was performed; drive the car through several uphill and part-throttle downshifts to feel for slipping or a harsh engagement.

   2 excerpts from owner complaints in NHTSA records

   “When accelerating, the car suddenly has no power, then shifts hard down, typically it happens shifting into 3rd or 4th gear. Under about a half pedal, it basically feels like a stall, then jerks you backwards, hard as it kicks into gear and accelerates. I'm told there is a service bulletin that there are transmission failures for this car. Unfortunately, we are out of warranty.”

   NHTSA complaint #10427774, filed 2011-09, 50,000 miles

   “My transmission fails and revs high when I accelerate too hard or am going up a hill causing a downshift. This is most common when switching between the 5th and 6th gears. This is a very dangerous problem common in many vehicles of this model year. If I suddenly can't accelerate going 60 MPH on the highway and drop down to 40mph as I wait for the rpms to go back down, there is a serious risk of being rear ended or side swiped depending on the situation. There is a service bulletin but it should be a recall. …”

   NHTSA complaint #10521865, filed 2013-06, 80,000 miles
2. 2
   Air bags

   Air bag inflator recalls and non-deployment reports

   Mentioned in 9 of 60 sampled complaints

   Complaints describe air bag warning lights staying on, long waits for parts under the Takata inflator recalls, and vehicles being brought back for a second passenger-side inflator replacement. A separate group reports the air bags failing to deploy in collisions, in some cases with injuries; others describe delayed deployment or a driver-side bag that did not fire until after the vehicle stopped. Reported across a wide mileage range, from about 19,000 to over 120,000 miles, and sometimes years after the recall notices were sent.

   Recall 19V781000 · DO NOT DRIVERecall 18V402000 · DO NOT DRIVERecall 17V474000 · DO NOT DRIVE1 related service bulletin

   What to check: Check the VIN against open recalls and ask for documentation that the driver and passenger inflators were replaced with the updated parts; watch for an air bag light that stays illuminated.

   2 excerpts from owner complaints in NHTSA records

   “I was driving to work at 733am and my brakes locked front wheel slid card did not stop and hit front vehicle and air bags did not deploy and cause me an accident which car was completely a loss and im still scare that the airbags did not work. Im still scare I did not cause myself a worse accident but im emotionally still shaken by the air bags.”

   NHTSA complaint #10650489, filed 2014-10, 115,000 miles

   “I was driving on northbound 71 near louisville, ky when a vehicle entered the freeway and cut me off. I avoided a collision with him but the vehicle behind me hit me multiple times in multiple locations, spinning me across the freeway. One was a side impact hit which forced my head into the driver's side window, breaking it. I had six airbags in my 2006 Mazda 6 and none of them deployed. The rates of speed being traveled were at approximately 55 miles per hour. …”

   NHTSA complaint #10349647, filed 2010-08, 71,000 miles
3. 3
   Electrical system

   Electrical glitches: door wiring smoke, locks and lights

   • 13 complaints (8%)
   • median 85,000 mi at 6.8 yrs old (9 state mileage, few)
   • 1 mention a crash, fire or injury
   • filed 2011–2022

   Complaints describe windows, locks and the alarm operating on their own, a horn that would not stop until the relay was pulled, and in one report smoke and fire from the driver's door window switch area. Others report low-beam headlights that quit intermittently or lenses that cloud over, with the bulb itself found to be fine. Mostly reported between about 60,000 and 136,000 miles, with some appearing shortly after other dealer service.

   1 related service bulletin

   What to check: Check that all windows, locks and the horn work from every switch, look for scorching or a burning smell at the door switch panels, and confirm both low beams work and the lenses are clear.

   2 excerpts from owner complaints in NHTSA records

   “I was sitting at a red light, my driver side door started to smoke. I was able to let it air out enough to drive home. As soon as I made it home, the smoke started pouring out of the window control and the whole door panel, rushed to get my kids out of the car. As the smoke thickened a fire started, I was able to put it out with a fire extinguisher before too much damage was caused.”

   NHTSA complaint #10661409, filed 2014-12, 68,000 miles

   “The low beam headlights continue to go out. I have replaced them number of times. This is not just a problem with my car numerous mazda3 owners and MAZDA6 owners are having this same problem. This is especially dangerous when the lights go out at night.”

   NHTSA complaint #10520464, filed 2013-06, 99,000 miles
4. 4
   Steering

   Front subframe rust at steering and suspension mounts

   • 6 complaints (3%)
   • median 140,000 mi at 14.0 yrs old (5 state mileage, few)
   • filed 2018–2024

   Owners describe rust perforating the front subframe near where the steering and lower control arms attach, in some cases discovering it while doing other work and in others having a control arm separate while driving. Complaints say dealers confirmed the rust and recommended subframe replacement, and several owners report being told their vehicle was not covered by a recall for the condition. Reported mainly between about 85,000 and 196,000 miles, often in vehicles used in winter-road-salt areas.

   What to check: Have the car inspected on a lift with attention to the front subframe and control arm mounting points for perforation or heavy scaling, especially if the car spent winters in a salt-belt state.

   2 excerpts from owner complaints in NHTSA records

   “Front sub-frame rusted causing lower suspension / control arm to come apart, leaving front wheel to be unstable. This happened while driving, almost causing accident do to instability in staring system. I see that this is a common problem with this model, however for some reason my VIN doesn't show the recall. Is this something that the company is planning to address, or am a stuck with the problem? Pictures included.”

   NHTSA complaint #11298568, filed 2020-01, 196,130 miles

   “On 6/18/2018, the passenger side steering control arm broke off the sub-frame of my 2006 Mazda 6 while I was driving it. Fortunately, I was driving on a side street close to home when this happened and not on a highway. I did not know at the time that it was the subframe. All I knew was that there was no control of the car as it was being driven. The control arm broke off the sub-frame because the subframe was rusted/corroded. It's unacceptable and a major safety issue for an auto subframe to rot like that and my car only as about 86,000 miles. …”

   NHTSA complaint #11111780, filed 2018-07, 86,000 miles
5. 5
   Brakes

   Brake pedal goes hard or to the floor

   Mentioned in 5 of 60 sampled complaints

   Complaints describe the brake pedal going to the floor with little or no braking, sometimes requiring repeated pumping before brakes return, and other reports of a stiff pedal with reduced power assist in very cold weather. Some owners said dealers inspected the car and found nothing, while others reported the condition recurring more than once. Reported from low mileage up to about 155,000 miles, with several instances in single-digit temperatures or on the first drive of the day.

   What to check: Test the pedal feel at a stop with steady pressure and again after a cold start, and ask for service records showing brake hydraulic work such as master cylinder or brake booster repairs.

   2 excerpts from owner complaints in NHTSA records

   “Brakes have failed 3 separate times in this 2006 Mazda 6. First time I was driving and went through a stop sign. I have the brake pedal to the floor. Pumped the brake and brakes came back on. Second time, backing out of garage no brakes. Had pedal to floor and had to pump them before almost hitting neighbors garage, last time pulled into a parking spot and had no brakes. Hit another car which stopped me. Each time I reported this to polar chevy/Mazda. Each time they had me bring in the car and they looked at it. …”

   NHTSA complaint #10285444, filed 2009-09, 48,000 miles

   “When starting and initially driving the vehicle in single digit temperatures the power assist to the brakes cuts off intermittently and without warning. When starting the vehicle in extreme cold temperatures the tcs off light illuminates and remains lit for approximately 30-45 seconds after the vehicle is running. When driving, the vehicle's power braking system fails to engage resulting in a stiff pedal requiring excessive stopping force. This situation goes away after brakes have been pumped or used repeatedly (presumably to warm up fluid). …”

   NHTSA complaint #10676552, filed 2015-01, 155,000 miles

Buying note. On this model year, first confirm that both air bag inflator recalls have been completed with the updated parts, then have the front subframe and transmission checked by someone familiar with the car. Records of transmission service and any brake hydraulic repairs help separate a well-sorted example from one with unresolved symptoms.

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.