really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
21,267 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Mazda RX-8 transmission problems

transmission problem

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2004 Mazda RX-8 Owner Comments

problem #5

Jun 252010


  • 40,833 miles


My 2004 Mazda Rx-8 only has 53,000 miles on it and is again in the shop due to manufacturer-related engine failure. This is the second time in less than 1 year I've been left stranded in hazardous circumstances because of engine failure. I've also experienced power steering failure and loss of engine compression/engine misfires while driving on multiple occasions. As a result, I'm becoming increasingly concerned for my safety, as well as for the safety of others who own/operate this type of Mazda vehicle. Please consider organizing a class-action lawsuit against Mazda to hold them accountable for putting many valuable lives at risk.

- Los Olivos, CA, USA

problem #4

Aug 282008


  • Automatic transmission
  • 34,500 miles
The contact owns a 2004 Mazda RX8. The contact stated whenever it would rain, water would leak into the passengers side tail light. The dealer advised there were no recalls for the failure and repairs would be at the owners expense. In addition, the contact stated when accelerating from a complete stop the accelerator pedal would become extremely resistant to applied pressure or would sporadically lunge forward without warning. The dealer was unable to duplicate the failure and could not offer a remedy. The manufacturer would not provide any assistance. The failure mileage was 34,500 the consumer believed the vehicle also had transmission problems, due to it not shifting properly in 1st and gear. Updated 07/06/10. Updated 07/08/10 updated 07/09/10.

- Glendale, CA, USA

problem #3

Mar 102010


  • miles
I don't even know where to begin with the problem I have had with my 2004 Mazda Rx-8. I have owned it since September 2003 and it has had countless issues, parts replaced and failures. The incident I experienced last night put me over the edge and almost cost me my life. My Rx-8, which was just at the dealer 2 weeks ago, had an engine malfunction while I was on a major highway in Massachusetts. The speed of the vehicle went from approx 50mph to 10mph in a matter of a few seconds. Luckily I was able to make my way to the breakdown lane without injuring myself or anyone else; however, this is unacceptable. Every single part in my Rx-8 has been replaced except for the engine mounts and engine. I have dished out thousands of dollars already and the vehicle only has 44,000 miles on it. Not only is this a safety hazard to those of us driving the vehicle, but it is also a safety hazard to those around us. Had the car behind me not been paying attention my vehicle could have caused a deadly car crash in the middle of rush hour on a major highway. I have contacted numerous dealerships, the BBB, and am now looking into a class action lawsuit. Mazda needs to be held accountable for their actions. Unfortunately because my car was purchased in 2003, BBB wouldn't have anything to do with the case, however I have 57 pages of detailed repairs that have been made to this vehicle since I owned it, which I am more than happy to send to you. Tons of people online have had similar issues; just from automotive.com there are 30+ email addresses of individuals who have experienced problems similar to mine. Please help us get to the bottom of this faulty engine and make Mazda own up to their mistakes. People's lives are in danger and this is neither acceptable nor ethical. Ps- an employee of NHTSA has been contacted prior regarding this situation. Her name is cortney and her contact information is 1-888-327-4236 ext #: 1268. I received this from the automotive.com forum.

- Andover, MA, USA

problem #2

Mar 312006

RX-8 6-cyl

  • Automatic transmission
  • 16,000 miles
Engine failure, purchased car 3/11/2006, a couple of weeks later the car started idling roughly, then stalling, the computer module has been replaced twice, the engine once, I still have problems with acceleration, the last incident happened last week 7/29/2007, I was in the center lane pulling out into the passing lane and the car lost all power but did not stall my head was slammed forward almost hitting the stirring wheel and a few seconds later shot off like a rocket slamming my head back against the drivers seat, causing my neck to whip lash I have had a bad headache since, and I was almost hit by a big diesel truck. The car is in the shop again getting the oil and tires changed, and also getting checked for this problem but they are saying they could not find anything on the road test. Well it happens to me quite often when I go to pass someone on the interstate, it hesitates before it kicks in and someone is going to get killed. I am paying for a car that spends more time in the shop than out. I bought it 3/11/06 it stayed in the shop almost continually until 7/18/2006, and I was making payments. Now it is starting all over again with the rough idle and hesitation. I am getting to the point that I want my money back and I'll give them the car back. I am getting to scared to drive it. Now I find out today about other recalls the control arm I was not aware of, I guess that is why my car is starting to pull hard to the right, now I have to have that taken care of. I have moved 350 miles away and I can't leave until my car gets fixed and out of the shop, this is starting to be bull!!! someone needs to do something I have a friend who also has an RX8 we purchased ours on the same day and she is having the same problems and hers is a 2006 where mine is a 2004, so Mazda hasn't fixed the problem.

- Ocala, FL, USA

problem #1

Dec 282006


  • Automatic transmission
  • 15,000 miles
Engine failure, after driving short distances engine does not always want to restart; during times of sitting in traffic, car will idle roughly and sputter, sometimes die and won't immediately restart; car has died while attempting to start out into traffic; transmission doesn't change gears properly... I have had my car since Feb. 04 and it has been serviced over a dozen times for engine failure and transmission issues alone. It has had a new transmission, linkage, gear box, starter, battery, and they are currently putting in the 2nd replacement engine. No one seems to know why these cars have so much trouble, but I wouldn't have another one if it was given to me.

- Knoxville, SD, USA

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