I was waiting at a traffic signal to make a left turn, with my foot on the brake. The car accelerated aggressively, with no warning, like the pedal was pushed to the floor. I stood on the brake and shoved the shifter into park - coming to a stop in the middle of the intersection, Fortunately my wheels were pointed straight and the car did not race into oncoming traffic. My [XXX] father was in the car with me. Thankfully, my grandchildren were NOT in the car. You could smell the gas and brakes. It was NOT driver foot placement, nor was it floor mats. Vehicle has ~ 75K miles, and I am terrified of this happening again. I had driven this car regularly in rush hour stop & go traffic for years with no event like this ever before. Apparently sudden unintended vehicle acceleration is a recognized problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Bridgeton, MO, USA

Was driving with family on highway when car started to feel wobbly and I began smelling the distinct smell of burning brakes. I pulled over at the closes store (.5 miles). I then noticed the rear, passenger caliper was smoking. I later found out (after a few hundred dollars and hours of labor) this is a known issue with the rear calipers siezing... apparently this isn't considered "safety""!"!. if I wasn't mechanically inclined I may have kept driving. My sort ride was enough to heat up and loosen 2 of my lug nuts. If that isn't a safety hazard then I don't know what is.

- Millbury, MA, USA

The contact owns a 2014 Mazda Cx-5. the contact stated that the brakes made a squealing noise and failed numerous times. The vehicle was taken to ferra auto group Mazda (3363 South arlington road, akron, oh 44312, (330) 645-7275) where it was determined that the brake pads were wearing unevenly. The dealer further stated that the brakes remained engaged and caused the brake pads to wear prematurely. The inner brake pad was at a two level and the outer brake pad remained at level six. The contact was informed that the premature brake pad wear may be caused by the calipers and hydraulic flex line. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 27,000.

- Akron, OH, USA

At times the breaks become unresponsive to pressure and the pedal goes all the way to the floor. The breaks have to be pumped it order to get them to catch. So, I took the car to a repair shop and they changed the break pads and bleed the lines. However, after a test drive the issue happened to the mechanic again. After checking the break system again, they found that the vacuum pump is malfunctioning. There was a recall for other Mazda Cx-5S in my model year. But my VIN number does not fall in the recall. My auto repair person stated that this is something that shouldn't happen, and is extremely dangerous.

- Chicago, IL, USA

I have owned this vehicle for three years and the power brakes have failed three separate times. Each time this happens the pedal is extremely hard to push and will not go down. Each time I was driving in city type traffic. I have taken the car to jim ellis Mazda in marietta ga. They were unable to duplicate the problem and recommended a brake fluid flush having said the fluid was dirty. Also said I needed rear brake pads due to wear but they were fine.I did replace them with new as a precaution as I am a retired automotive technician. I will attach a photo of the pads.the car has 49000 miles on it and was purchased certified pre owned in October 2016. My wife is afraid to drive this car now since we don't know when this may occur again. Each time the brakes failed it was hot weather and the occurrence was Sept 2nd 2019.

- Marietta, GA, USA

Since purchased, the vehicle driver noted brake pedal was "soft" when braking the vehicle. There was not enough pressure in the master cylinder system, in which the brake did not return appropriately. The pads did not perform, so all the interior routers grinded. The vehicle had consistent movement on a weekly basis and the mileage on the car does not warrant all four rotors and pad having to be replaced.

- Chicago, IL, USA

The car slips gears - going from drive to neutral instantaneously without warning. This happens when the car is in motion and in drive. The indicator light says 'd' but the car's gear is in neutral. This has happened 3 times on streets at approx 40mph after making a 3 hour hwy trip.

- Raleigh, NC, USA

Went in for a service around 55,000 miles and was told that new rear brakes were needed. Got a second opinion and was told that they could go a little longer. Started hearing squeaking, took them back to the mechanic who said they needed replacing. Replaced at 59,000 miles. Went in today 7/26/18 and was told my rear brakes were at 4% and would need replacing by my next visit. This would mean 2 rear brake replacements within 10,000 miles. My front brakes are still fine. I see many complaints about this for the cx 5, there a several tsbs out. Called Mazda who said they weren't aware of this problem and that brakes are considered a normal part of wear and tear. My second issues is that when I put my car in park and attempt to shut if off but it will not power off. This doesn't happen every time, but probably every 4th or 5th time. I read online that it's a transmission sensor issue and that the transmission sensor needs replacing. Both of these issues are very prevalent and I'm hoping there can be a recall on both.

- Santa Barbara, CA, USA

The rear brake pads on my Mazda cx 5 grand touring model is worn out to (0.2 per dealer) at approx 34000 miles. Noticed the problem when the car started making a grinding noise from the rear. Before this there was a very strong vibration of steering when braking at speeds of 55 plus mph. This is very unusual in my experience that a car which is about 2 years old needs new brake pads and rotors replaced. Mazda website had some information www.carcomplaints.com/Mazda/Cx-5/2013/brakes/service_brakes.shtml. brake rotors were replaced by Mazda at 34000 miles, not my car is at 56000 miles and initial symptom with the strong vibration of the steering wheel when braking is reappearing. This seems to indicate an inherent problem with this model per independent mechanics.

- Pasadena, CA, USA

The brake pedal is several inches higher than the gas petal in this vehicle. It slows down reaction time when reacting to an emergency situation. I was backing into a parking space. A vehicle went around me. I noticed the vehicle, but when I tried to quickly move my foot to the brake my foot got hung up on the brake pedal. There was an accident with no injuries. The accident could have been avoided if I was able to hit the brakes. After the accident I sat in the parking lot to analyze and correct my muscle memory and practice moving my foot quickly from gas to pedal. I realized it took much effort, concentration and quite a stretch to get get my foot to the pedal quickly. The pedals should be even, or very close to even. I don't know why someone would think this is better, but if it's a preference there should be an adjustment. Even should be the factory default. It's common sense you can move more quickly strait across than up and over. The unadjustible factory position is ok for standard traffic situations, but when in an unexpected energency situation it slows down your reaction time considerably. Mazda says it's norman and all new cars are this way. I said that doesn't make it correct or any less of a safety concern. Why make a change that slows down reaction time?

- Marietta, GA, USA

Front and rear brake rotors warped and pitted at 31,000 miles. We had them replaced in March 2016. In December 2016, (37,000 mls) we had intermittent rumbling in the brakes - particularly braking at 50 + mph. All the new rotors warped and we have had to have them replaced. Have other owners reported similar issues". are the brakes for this model of car underspecified? is the steel of poor quality"

- Jupiter, FL, USA

Following a routine oil change with only 26,000 mi it was discovered that my front brake rotors are severely corroded and need to be replaced.the service at Liberty Mazda wakefield, MA insist it is dangerous to keep driving my vehicle due to possible brake failure. I believe this is a manufacturing defect, or as the mechanic stated an inferior steel product used to manufacture the rotors.

- Reading, MA, USA

Abt 35K miles I began hearing intermittent sequels coming from rear of vehicle while driving. When I first mentioned this to Mazda service adviser, he said he did a complete diagnostic and car was fine. At abt 40-45K the intermittent squeals included grinding like a tin can noise, but there were no indicators that it was a break issue; noise was noticed more during driving not when I stopped and no service brake lights were on. If I accelerated or maneuvered my steering wheel I was able to get noise to stop. When I took my car in to Mazda for oil change I asked to also have brakes checked and adviser said he would do a complete diagnostic. He said brakes were in yellow and I could try to change my brake fluid? the noise, duration and occurrences increased to weekly and then daily. It was still intermittent and while driving forward and in reverse, not as much when braking, and it had become increasingly louder. I called Mazda corporate and they finally agreed to do a diagnostic at a nearby Mazda store when I mentioned I found tbs 04-005/15 on the brake issue and was taking the vehicle to another dealership for a brake check. The diagnostic technician report stated to replace rear brake pads to correct problem. It said the rear brakes had 4mm on outer pads and 1mm on inner pads, and front pads were at 8mm; it did not state if front brakes were also worn unevenly. It also said rear rotors were at 10mm and min was 8mm. I told corporate that it was unusual that rear brakes would wear unevenly and prior to front brakes, that there was no brake service light showing, that the noise was intermittent not constant and while driving more than braking. I also mentioned that I believed there was a defect in the braking system.

- Fresno, CA, USA

The contact owns a 2014 Mazda Cx-5. while driving 15 mph, an abnormal sound was heard. The failure recurred randomly. The vehicle was taken to a dealer where the failure could not be diagnosed. The vehicle was not repaired. The failure was persistent. The vehicle was taken back to a dealer where it was diagnosed that the rear brakes failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 35,940.

- Fresno, CA, USA

My rear brake pads had to be replaced with only 33000 miles on the car. The front ones have not been replaced yet. There is a recall tbs 04-003/14 on the brakes but Mazda did not honor it because they said the service manager said the pads wore out evenly. If defective they should wear out unevenly. Huh" why did the brake pads wear out so fast"

- Middletown, DE, USA

Took vehicle in for 35,00 mile service and was told rear breaks and rotors needed to be replaced. Never herd of such a thing being required at that mileage. Maybe at 60 to 80,000 on rear breaks. Started to check around and found many other complaints about the rear breaks failing prematurely. Haven't had work done yet, wondering if there is a recall in progress?

- Clifton Park, NY, USA

The rear brake pads on my Mazda cx 5 grand touring model is worn out to (0.2 per dealer) at approx 34200 miles. Noticed this problem a few weeks back when the car started making a grinding noise from the rear. This is very unusual in my experience that a car which is about 2 years and 6 months old needs new brake pads and rotors replaced. On my other cars which are Nissan the brake pads lasted for about 5 years (approx. 60,000 miles). I want to raise this as a complaint. My car is still under warranty. I want Mazda to look into this and advise on a fix. I see so many websites where cx owners are facing the same issue, quoting one here for an example www.carcomplaints.com/Mazda/Cx-5/2013/brakes/service_brakes.shtml.

- Pico Rivera, CA, USA

2 issues so far with this car: 1st - rear brakes seized up after 30K causing a trail of smoke to follow my car while on the highway, followed by an emergency stop on the side of the road. The hub, rotor, brake caliper, and tires became so hot that the tire pressure sensor went off and upon inspection, the tire pressure had increased from 35psi to over 50psi (tire pressure gauge did not go higher then 50) due to heat. Was told that due to salt and sand (live in cold climate) corrosion caused the issue. Rear brakes and rotors replaced @ $208.95. Currently fighting Mazda for a refund as this is clearly covered under the 3 year 36K mile warranty per tsb: 04005/15 - see warranty section on 3rd and 4th page. I had family in the car when this happened and am worried about the long term safety of this car and it's braking systems. A rear tire blow out caused by this issue could have caused a fatal crash at highway speeds. 2nd - I have replaced the windshield on this car 5 times now in under 30K miles. I have been told repeatedly that this is due to rock chips, but twice the crack appeared out of no where while the car was parked in a temp controlled garage overnight. I have never had this issue with any other car I have ever owned. The windshields are always on a month long back order and driving with a cracked windshield is against the law, so every time this happens I am out of a car for a month and have to fork over money for a loaner so I may get to work. (Mazda and insurance company refuse to offer or pay for my loader car, or I am told there is not one currently available and I am sol)

- Honesdale, PA, USA

Brakes are prematurely failing. Brakes were replaced at 12,000mi, 20,000mi and now need replacing again. The rotors are warping causing severe vibrations when brakes are applied. Mazda dealers are stating that the driver is at fault for "too much high speed braking" and will not cover the repair of the brake system. Vehicle is currently at 24, xxx mi and the shake is present again.

- Lusby, MD, USA

I have had my car for just over a year and heard a grinding noise on the back passenger side. Hearing this I immediately took it to dealership where I bought the car to get it fixed. They tell me that it was the back rear brakes. I have had my Honda Accord with 140,000 miles and have only had to get the brakes changed a handful of times three to be exact. This isn't right the company has made some kind of defect in order for this to happen. Please help I have invested $30,000 on this car.

- Aurora, IL, USA