I've had issues with my car whenever I put gas in it. My car won't start up or cut off whenever I put gas in it. I've also had issues with the acceleration because of this.

- Altamonte Springs, FL, USA

The issue has been ongoing, but originally started in the summer of 2008 (car had roughly about 42,000 or so miles on it). Initially the car would increase the RPM up to 7000R in 5th gear (going to 6th) and then decrease causing it to do a hard jerk (someone else described it as being rear ended and that's exactly what it feels like). I took my car to the Mazda dealership in marlow heights, md (while it was still under warranty) and the service person and I went for a drive (I was driving) he told me that he didn't notice anything off about it so I went back home. Fast forward to 2013 (the problem persisted through the entire time) when I took the car the arlington Mazda dealership. This is where they did a test drive on it and came to the conclusion that my car's transmission is going bad (the car had about 49,604 or so miles on it). To date, the vehicle (which now has 58,360 miles on it) has trouble picking up speed is extremely laggy and in 5th to 6th gear will pull a hard jerk before it catches up with itself. I agree with the other owners who have this problem. Mazda needs to recall and replace the transmission because there's clearly a safety issue. After all, if another vehicle is following too closely behind the vehicle(s) having this issue they are going to undoubtedly be involved in a serious collision and there probably will be a fatality. Please note: I included the mileage the car has so that those considering purchasing this car will know they may not have long to enjoy it before they have a really dangerous and expensive problem on their hands.

- Upper Marlboro, MD, USA

TL * the contact owns a 2006 Mazda 6. while driving at an unknown speed in a parking lot, the vehicle suddenly accelerated. The acceleration continued even after the hand brake was applied. The contact lost control of the vehicle and crashed into the side of a truck, tree, and transformer before finally crashing into a metal fence. The air bags failed to deploy. The police were called and the vehicle was towed. There were no injuries. The dealer was notified of the failure, but the manufacturer was not. The vehicle was not repaired. There were no injuries. The approximate failure mileage was 66,000. Updated 08/12/14

- El Paso, TX, USA

When accelerating or climbing enough to invoke a downshift, the transmission occasionally slips or disengages causing very high RPM, followed by a sudden downshift and very hard jerk. It almost feels like being hit from behind. This failure poses an extreme rear end collision hazard. Mazda has issued tsb 05-016/06 to deal with this problem but my dealer informed me that Mazda now recommends a complete transmission change in lieu of a valve body change recommended by the tsb. This transmission should be recalled, it's unsafe.

- Port Angeles, WA, USA

The contact owns a 2006 Mazda 6. while stopped at a traffic light the vehicle accelerated without warning striking another vehicle. There was damage to the front bumper and the headlights however there were no injuries. The road conditions were dry. The vehicle was drive-able. The dealer has not diagnosed the vehicle. The current and failure mileage was 30,000. The engine size was unavailable.

- Rockville, MD, USA