Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
17,825 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 MPV transmission problems

transmission problem

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2004 Mazda MPV Owner Comments

problem #7

Aug 032009


  • 55,000 miles


Total transmission failure.

- Tucson, AZ, USA

problem #6

Apr 102004

MPV 6-cyl

  • Automatic transmission
  • miles
2004 Mazda MPV with transmission problems. Consumer states that the vehicle has a transmission shift shock problem and the warranty is getting ready to expire. When accelerating vehicle and passenger get jolted forward. The consumer stated the last time the problem happened, the transmission light illuminated.

- Newark, CA, USA

problem #5

Apr 172007

MPV 6-cyl

  • Automatic transmission
  • 31,777 miles
I purchased a 2004 MPV arch 28, 2005. To date, I have had this van in for warranty service to replace ignition coils three times: 10/31/06 真 31,770mi - #4 coil replaced. Transmission range sensor replaced also 12/05/06 真 33,229mi - #4 coil replaced again 1/08/07 真 34,708mi - #6 coil replaced. Today as I was driving, the same symptoms 真 steering wheel vibration, bucking, lurching 真 occurred as before when the other coils failed. The cel came on, I checked for the code and I discovered that the #5 coil has failed. Now this will be the fourth service for the same problem. There has been no effort on the part of country Mazda to find the source of the coil failure. Replacing the parts obviously is not solving the problem.

- West Babylon, NY, USA

problem #4

Oct 172005

MPV 6-cyl

  • Automatic transmission
  • 34,000 miles


On my Mazda MPV in temperatures below 40 degrees the transmission slips when shifting into 3rd gear. This causes loss of power and a whiplash action when the transmission re-engages. In high traffic situations this can be very dangerous.

- Grant, AL, USA

problem #3

Oct 012006

MPV 6-cyl

  • Automatic transmission
  • 4,000 miles
2004 Mazda MPV - transmission issues and engine coil failures. Transmission has shift shock, where the vehicle slams into the next gear at 20 mph. The shock sends the vehicle dangerously forward. Mazda had two service bulletins for this defect which included replacing sensors and switches. Mazda also supplied a diagram to instruct drivers to "wiggle" the gear selector between gears. None of this solved the problems. Engine coils were replaced three times at 24,000 miles, 32,000 miles, and 35,000 miles. This caused the vehicle to stop running correctly while driving.

- Columbus, NJ, USA

problem #2

Jul 272005

MPV 6-cyl

  • Automatic transmission
  • miles
2004 Mazda MPV - North park Mazda is san antonio has been unable to fix a noise coming from the front of the vehicle. I took the van in 5 times in July. They were unable to duplicate the noise on the first few attempts. I finally had to take the service manager for a ride in it. They thought they had fixed it the last 2 times I took it in but apparently did not actually locate the problem. I

- San Antonio, TX, USA

problem #1

Aug 062004

MPV 6-cyl

  • Automatic transmission
  • miles
While driving consumer applied the brakes and pedal went to the floor. A loud knocking noise was heard from the front. Consumer was able to slow down, and pulled over. Consumer had vehicle towed to the dealer, and mechanic determined that transmission blew out due to a worn shaft solenoid.

- Bethel Park, PA, USA

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